TED Talks Daily (HD video)

From hours-long lines and limited polling locations to confusing and discriminatory registration policies, why is it so hard to vote in the US? Voting rights expert Amber McReynolds offers a proven alternative: a new process, already happening in parts of the country, that could bring accountability, transparency and equity to the outdated and sputtering system that American democracy currently relies on.

The only thing as powerful as our grief is the love we have for those we've lost, says photographer Caroline Catlin. In this meditation on the intersection of life and death, Catlin shares how her personal journey with loss drove her to capture the elusive moments of grace and beauty that exist even in the hardest moments imaginable.

Biodesigner Natsai Audrey Chieza prototypes the future, imagining a world where people and nature can thrive together. In this wildly imaginative talk, she shares the vision behind her innovation lab, which works at the intersection of nature, technology and society to create sustainable materials and models for the future. Chieza invites us to consider what kind of world we wish for -- and what systemic changes and collaborations need to happen for it to exist.

The single most important thing for avoiding a climate disaster is cutting carbon pollution from the current 51 billion tons per year to zero, says philanthropist and technologist Bill Gates. Introducing the concept of the "green premium" -- the higher price of zero-emission products like electric cars, artificial meat or sustainable aviation fuel -- Gates identifies the breakthroughs and investments we need to reduce the cost of clean tech, decarbonize the economy and create a pathway to a clean and prosperous future for all. (This virtual conversation, hosted by TED Global curator Bruno Giussani, was recorded in March 2021.)

Higher education remains rooted in rigid, traditional structures and tracks -- and it's at risk of getting left behind in favor of expanded access, greater flexibility and tailored learning. Educator Tyler DeWitt explains how innovations in digital content and virtual reality are ushering in the future of learning, emphasizing why academia must adapt to this new reality and embrace an approach to education that works with students' needs -- not against them.

"We need to figure out how we go into conversations not looking for the victory, but the progress," says world debate champion Julia Dhar. In this practical talk, she shares three essential features of productive disagreements grounded in curiosity and purpose. The end result? Constructive conversations that sharpen your argument -- not your relationships.

What if we could we use biology to restore our balance with nature without giving up modern creature comforts? Advocating for a new kind of environmentalism, scientist and entrepreneur Emily Leproust rethinks modern sustainability at the molecular level, using synthetic biology to create green alternatives. From lab-developed insulin and disease-resistant bananas to airplanes made of super-strong spider silk, she explains how reading and writing DNA can lead to groundbreaking innovations in health, food and materials.

When you report an emergency in the US, police, firefighters or paramedics answer the call. What if mental health professionals responded, too? Colorado State Representative Leslie Herod shares a straightforward and research-backed approach that brings heart and humanity to criminal justice rather than unnecessary fines and arrests -- and keeps crises from escalating into traumatic, or even deadly, events.

The COVID-19 pandemic changed the way we work for good. Can it also change it for the better? Consultant Patty McCord reviews four key insights employers and employees alike gleaned from their shift to working from home -- and shares how companies can use what they learned in lockdown to creatively and innovatively rethink how we do business.

How do companies like SpaceX make sudden breakthroughs on decades-old challenges? Emerging tech expert Antoine Gourévitch explains how deep tech -- a new approach to innovation that merges science, engineering and design thinking -- is unlocking solutions to problems in space exploration, biology, energy and more. As Gourévitch says: "[deep tech] is changing what was once considered impossible into something actively possible, today."

Picture your favorite place in nature. How would you feel if it disappeared tomorrow? In this love letter to the planet, social worker and environmental activist Knut Ivar Bjørlykhaug invites us to confront the deep, difficult emotions -- love, sorrow and even rage -- born from climate-driven ecological loss in order to act in service of our collective home.

Calls for authenticity at work ask for passionate people with diverse, fresh perspectives who challenge old ways of thinking. But too often workplace culture fails to support the authenticity of professionals of color and other underrepresented groups, leading instead to backlash and fewer opportunities. Writer Jodi-Ann Burey outlines steps toward exposing privilege and achieving true equity on the job -- and implores those in leadership positions to accept responsibility for change.

After a terminal cancer diagnosis upended 12 years of remission, all Elaine Fong's mother wanted was a peaceful end of life. What she received instead became a fight for the right to decide when. Fong shares the heart-rending journey to honor her mother's choice for a death with dignity -- and reflects on the need to explore our relationship to dying so that we may redesign this final and most universal of human experiences.

When personal relationships and ideological differences collide, the result can lead to strained relations -- or even years of silence and distance. Actor Betty Hart offers an alternative to cold shoulders and haughty hellos: compassion, and a chance for growth and change instead of losing important time with loved ones.

What does it take to be a pro gamer? Esports expert William Collis charts the rise of the multibillion-dollar competitive gaming industry and breaks down three skills needed to master video games like Fortnite, League of Legends and Rocket League. And watch out, Collis says: these skills can set you up for crushing it at work, too.

To futureproof your job against robots and AI, you should learn how to code, brush up on your math skills and crack open an engineering textbook, right? Wrong. In this surprisingly comforting talk, tech journalist Kevin Roose makes the case that rather than trying to compete with the machines, we should instead focus on what makes us uniquely human.

Corporations and big business have wrecked the environment, but disadvantaged communities living in "sacrifice zones" -- urban areas heavily polluted and poisoned by industry -- are paying the price, says climate justice leader Angela Mahecha Adrar. Explaining why racial and economic justice must be at the center of climate action, she takes us to the frontline communities that are leading the world to clean, innovative and just climate solutions -- like Cooperativa Tierra y Libertad, a local farm co-op in Washington that's disrupting the multibillion-dollar berry business.

In the grand scheme of history, modern reality is a bizarre exception when compared to the worlds of ancient, precolonial and Indigenous civilizations, where myths ruled and gods roamed, says historian Greg Anderson. So why do Westerners today think they're right about reality and everybody else is wrong? Anderson tears into the fabric of objective reality to reveal the many universes that lie beyond -- and encourages a healthy reimagining of what other possible ways of being human could look like.

Aliens have invaded ancient history: they've cropped up in humanity's past through popular television and movies, displacing facts with absurd yet commonplace beliefs like "aliens built the pyramids." Archaeologist Sarah Kurnick illustrates why these misconceptions perpetuate racist and xenophobic notions of history and culture -- and demonstrates how you can help debunk these dangerous, outlandish myths.

On his first day as president, Joe Biden signed a letter of acceptance that set in motion the 30-day process for the United States to re-join the Paris Agreement on climate. On the day the US returns to the accord, John Kerry, the US Special Envoy for Climate, sits down with Nobel Laureate Al Gore to discuss the make-or-break decade ahead of us. Listen as Kerry lays out how the US fits into the global plan to get to net-zero emissions, explains why the COP26 UN climate conference could be humanity's "last best hope" to build international momentum and explores the role of business and youth activists in promoting environmental justice. (This interview features an introduction from Christiana Figueres, the principal architect of the Paris Agreement.)

Documentary photographer Olivia Arthur has been exploring a new frontier: the evolution of the blurring line between humanity and technology. In this meditative talk, she shows her work documenting the remarkable ways humans have merged with machines -- from bionics and motorized limbs to synthetic muscles and strikingly realistic robots -- and offers wisdom on the complexity, adaptability and resilience of the human body.

When catastrophe strikes, art prevails -- and has done so for centuries. In this fascinating talk, writer and director Cara Greene Epstein places the closing of theaters during the coronavirus pandemic in a historical context, exploring how we can use this intermission to imagine a more just, representative and beautiful world, onstage and off.

What if everything in your life was randomized: from the food you ate to the things you did and the places you traveled? Computer scientist Max Hawkins created algorithms to make decisions like these for him -- and got hooked on the experience for two years. He shares how relinquishing choice sent him across the world and opened him up to the beautiful complexity and richness of life. It makes you wonder: What lies just outside your comfort zone?

Your teeth carry secrets: centuries of history about your ancestors, from where they lived to what they ate and where they traveled. Bioarchaeologist Carolyn Freiwald traces the story of human migration across the Americas -- from Mayan royalty and Belizean buccaneers to rural Appalachian farmers -- to illustrate what ancient teeth can reveal about you.

Centuries of inequality can't be solved with access to technology alone -- we need to connect people with training and support too, says tech inclusionist 'Gbenga Sesan. Sharing the work behind the Paradigm Initiative, a social enterprise in Nigeria that's empowering young people with digital resources and skills, Sesan details a vision for creating life-changing opportunities for generations of people across Africa.

What if tiny microparticles could help us solve the world's biggest problems in a matter of minutes? That's the promise -- and magic -- of quantum computers, says Matt Langione. Speaking next to an actual IBM quantum computer, he explains how these machines solve complex challenges like developing vaccines and calculating financial risk in an entirely new way that's exponentially faster than the best supercomputers -- and shares why industries should prepare now for this new leap in computing.

How do you get the environment to the top of everyone's priority list? You can't, says climate advocate Angela Francis -- but you can get them to care about improving their lives. In this pragmatic talk, she shares her playbook for helping even the most skeptical among us see the benefits of a greener economy on their health, wealth and well-being.

What drives society's understanding of right and wrong? In this thought-provoking talk, futurist Juan Enriquez offers a historical outlook on what humanity once deemed acceptable -- from human sacrifice and public executions to slavery and eating meat -- and makes a surprising case that exponential advances in technology leads to more ethical behavior.

Short videos -- 60 seconds or less, made and shared on apps like TikTok, Snapchat and Instagram -- are more than just a fun way to pass the time; they've transformed how we work, communicate and learn. Digital strategist Qiuqing Tai explores the explosive rise of bite-sized content and forecasts its promise as an economic and social force.

What if we could better understand the world's biggest challenges simply by looking at a map? Jack Dangermond, a pioneer in geographic information system (GIS) technology that powers the digital maps people around the world use every day, speaks with TED technology curator Simone Ross about how his team is building a geospatial nervous system: a global, interconnected GIS network that reveals patterns, visualizes trends -- and could transform the way we make decisions about nearly everything.

Is art worth it? "Hell yeah," says graphic novelist R. Alan Brooks -- art has the power to scare dictators, inspire multitudes and change hearts and minds across the world. Reflecting on his journey to become an artist at a time when the world felt like it was burning, Brooks shares how creating something from a place of sincerity and passion can positively impact people in ways you may never know.

Difficult emotions are like the spikes of a cactus: they can get under your skin if you're not careful. In this empowering talk, performance psychologist Jessica Woods shares four mood-regulating strategies to help you gain self-awareness of your feelings, avoid catching other people's emotions and perform at your peak -- whatever the prickly situation may be.

Cities are becoming increasingly privatized: commercial real estate dominates the streets, carving up open space that once belonged to the public and selling it as a commodity to the highest bidder. Architect Elizabeth Diller explores the causes and effects of this growing threat -- and takes us on tour of her groundbreaking projects aimed at creating landscapes for the public to enjoy, from the High Line in New York City to Zaryadye Park in Moscow.

The abrupt shift to online learning due to COVID-19 rocked the US education system, unearthing many of the inequities at its foundation. Educator Nora Flanagan says we can reframe this moment as an opportunity to fix what's long been broken for teachers, students and families -- and shares four ways schools can reinvent themselves for a post-pandemic world.

Shopping is about more than just what you buy: it's a treasure hunt to discover something new, a negotiation to get a great deal, a time to catch up with friends and family. But for many, online shopping has turned the experience into an impersonal, unsatisfactory event. Is there a way to bring back the magic? With exciting examples from companies in India, Thailand and China, consumer expert Nimisha Jain introduces us to "conversational commerce," a new retail model that combines the convenience of a digital experience with the personalized touch of a real, human interaction.

Significant pieces of the globe are literally not on the map: they're missing from the most widely used mapping platforms, like Google Street View, leaving communities neglected of vital services and humanitarian aid. In this globetrotting talk, photographer Tawanda Kanhema takes us along on his journey to map 3,000 miles of uncharted areas in Zimbabwe, Namibia and northern Canada -- and shows how we can all contribute to building a more connected world.

As the founder of a startup, Tracy Young often worried that employees and investors valued male CEOs more -- and that being a woman compromised her position as a leader. In this brave, personal talk, she gives an honest look at the constraints women face when trying to adapt to a male-dominated business culture -- and shares how she developed the courage and vulnerability to lead as her complete, raw self. (This talk contains a graphic story. Discretion is advised.)

Democracy needs an update -- one that respects and engages citizens by involving them in everyday political decisions, says writer and researcher Max Rashbrooke. He outlines three global success stories that could help move democratic systems forward and protect society against the new challenges this century is already bringing.

When global leaders think about which industries can fuel economic growth, the arts are often overlooked. But filmmaker Mehret Mandefro says the creative sector actually has the power to grow economies -- while also helping safeguard democracy. In this captivating talk, she shares a behind-the-scenes look at how she's putting culture back on the economic agenda in Ethiopia, and explains why other countries would benefit from doing the same.

The future economy won't be built by people and factories, but by algorithms and artificial intelligence, says data scientist Mainak Mazumdar. But what happens when these algorithms get trained on biased data? Drawing on examples from Shanghai to New York City, Mazumdar shows how less-than-quality data leads to AI that makes wrong decisions and predictions -- and reveals three infrastructural resets needed to make ethical AI possible.

How do the world's best leaders and visionaries earn trust? They don't just present data -- they also tell great stories. Leadership consultant Karen Eber demystifies what makes for effective storytelling and explains how anyone can harness it to create empathy and inspire action.

Why is it so hard to speak up and productively disagree at work? Leadership and organization coach Betsy Kauffman shows how to bring the candid conversations that usually happen at the watercooler out into the open with four practical strategies you can implement right now to have honest, transparent discussions with your colleagues.

Humanity now has incredible power to shape nature and the Earth: the power to destroy and the power to repair, says sustainability champion and UNDP Administrator Achim Steiner. In this action-oriented talk, Steiner shows how this power is putting our own survival at risk -- and takes us on a global tour of individuals and societies that are choosing to write a new, sustainable and equitable chapter for people and the planet.

What if we could build a global waste disposal service for carbon? In this forward-thinking talk, carbon capture advisor Bas Sudmeijer proposes building CO2 networks: partnerships between cities around the world that would share the cost and geological resources needed to trap emissions deep in the earth -- and give us a shot at stalling climate change.

In a rich conversation full of practical insights, former Prime Minister of Australia Julia Gillard and former Finance Minister of Nigeria Ngozi Okonjo-Iweala reflect on their experiences as women leaders in positions of global power -- and share six standout lessons on what it takes to lead and build solidarity in the face of gender bias and stereotypes.

Jamila Gordon believes in the power of human connection -- and artificial intelligence -- to help people who might otherwise be left behind. Telling the story of her own path from refugee to global tech executive, she shows how AI is helping refugees, migrants and those from disadvantaged backgrounds find jobs and develop the skills they need to work effectively and safely.

You know how resolutions often go: you set a goal and start strong ... then the motivation runs out and feelings of frustration and shame creep in. The struggle is real -- but what if it doesn't have to be? Sociologist Christine Carter shares a simple step to shift your mindset and keep you on track to achieving your grandest ambitions.

Inspired by the rising movement against racism in the US, WNBA champion Renee Montgomery made an unexpected decision: she opted out of her dream job. As she says in this stirring talk, she wanted to "make it felt," and that meant turning her attention from the court to the community. But you don't have to be a basketball star to make it felt; anyone can turn important moments into meaningful momentum. How will you?

What's the best way to make a good point? Organizational psychologist Niro Sivanathan offers a fascinating lesson on the "dilution effect," a cognitive quirk that weakens our strongest cases -- and reveals why brevity is the true soul of persuasion.

When we experience loss, grief travels with us everywhere -- even work. What can companies do to support grieving employees? Sharing his own story of unimaginable heartbreak, Tilak Mandadi offers three ways organizations can cultivate a culture of workplace empathy, creating an environment that encourages community, productivity and joy. (This talk contains mature content.)

Artificial intelligence is all around us ... and the future will only bring more of it. How can we ensure the AI systems we build are responsible, safe and sustainable? Ethical AI expert Genevieve Bell shares six framing questions to broaden our understanding of future technology -- and create the next generation of critical thinkers and doers.

Mandatory lockdowns, quarantines and shelter-in-place orders meant to contain COVID-19 have created a shadow pandemic of domestic abuse, says physician Kemi DaSilva-Ibru. Sharing alarming statistics on the rise of gender-based violence worldwide, she describes how Nigeria quickly retrained a squadron of basic health care providers to respond to the crisis -- and shares lesson other countries can adopt to keep people safe from harm.

Roughly two billion people worldwide don't have access to banks or financial services like credit, insurance and investment -- or even a way to formally prove their identity. How do we bridge this divide? Mastercard CEO Ajay Banga sits down with TED current affairs curator Whitney Pennington Rodgers to discuss how innovative public-private partnerships can help bring everyone into the digital economy -- and why COVID-19 recovery hinges on financial inclusion.

Backed by research and personal anecdotes, Spanish professor Anna Babel reveals the intricate relationship between language and culture, showing how social categories and underlying biases influence the way we hear, regard and, ultimately, judge each other. A talk that will leave you questioning your assumptions about what it really means to speak a language.

After his son was diagnosed with cerebral palsy, Billy Samuel Mwape realized that his project management skills might be put to use to support his child's special needs. In this inspiring, personal talk, he describes how project management -- the process of leading a team's work to achieve goals on a tight timeline -- can help you tackle life's biggest challenges.

If you see something wrong in the workplace, what should you do? Business leader Angélique Parisot-Potter says you should speak up, even when it's scary. Sharing her personal experience of voicing concerns at work, she offers three lessons on standing up for what's right.

As a police officer, Jeremy Brewer interacts with individuals experiencing trauma and loss on a daily basis. Giving us a peek into this little-discussed aspect of the job, Brewer shares thoughtful insights on why respecting people's space is sometimes more important than trying to fix an unfixable moment -- and explains how you can use this approach to support someone when they need you the most.

Fairness matters ... to both people and primates. Sharing priceless footage of capuchin monkeys responding to perceived injustice, primatologist Sarah Brosnan explores why humans and monkeys evolved to care about equality -- and emphasizes the connection between a healthy, cooperative society and everyone getting their fair share.

Have you ever seen or experienced something and wished you spoke up? Writer Sakinah Hofler makes the case for writing as a tool to help you process difficult memories and reclaim the power they may hold over you. Pick up a pen or pull up a keyboard and follow along as she walks you through how to unburden your mind and inspire reflection.

In the Yukon First Nations, women lead; generations of matriarchs have guided and directed the community by forging trade agreements, creating marriage alliances and ensuring business for all. Yukon Regional Chief Kluane Adamek urges others to follow in the legacy of her people by putting more women at the table and encouraging them to seek spaces where their perspectives can create the biggest impact for a better tomorrow.

"Globalization is on its deathbed," says economist Mike O'Sullivan. The question now is: What's next? Tracing the historical successes and failures of globalization, O'Sullivan forecasts a new world order where countries come together over shared values rather than geography. Learn how big regional powers like the United States and China will be driven by distinct ways of governing trade, technology and people -- while smaller nations will forge new alliances to solve problems.

Astronomers once gazed upon the night sky and counted every star in the galaxy by hand. The process has evolved since then, but the thirst for celestial knowledge remains the same. Join astrophysicist Emily Levesque for an anecdote-rich jaunt through the technological history of photographing the cosmos and learn about the one constant that makes it all work: human curiosity.

When companies think of diversity and inclusion, they too often focus on meeting metrics instead of building relationships with people of diverse backgrounds, says Starbucks COO Rosalind G. Brewer. In this personable and wide-ranging conversation with TED current affairs curator Whitney Pennington Rodgers, Brewer invites leaders to rethink what it takes to create a truly inclusive workplace -- and lays out how to bring real, grassroots change to boardrooms and communities alike.

In the circus, flying confidently through the air requires consistent communication with your fellow performers. Check out how aerialist and educator Adie Delaney teaches her students about trust and safety on the trapeze -- and provides helpful lessons for navigating everyday life on the ground.

Standing up to discrimination and hate should be everyone's business, says community activist Wale Elegbede. In this vital talk, he shares how his community in La Crosse, Wisconsin came together to form an interfaith group in response to Islamophobia and racism -- and shows why a mentality of caring for your neighbors can make life better for everyone.

From microscopic "smart dust" tracking devices to DNA-tracing tech and advanced facial recognition software, journalist Sharon Weinberger leads a hair-raising tour through the global, unregulated bazaar of privatized mass surveillance. To reign in this growing, multibillion-dollar marketplace that often caters to customers with nefarious intents, Weinberger believes the first step is for governments to classify surveillance tools as dangerous and powerful weapons.

In April 2020, epidemiologist-in-training Sophie Rose volunteered to be infected with the virus that causes COVID-19. As a young, healthy adult, she's offering to take part in a human challenge trial, a study where participants are intentionally exposed to SARS-CoV-2 to test vaccines and gather critical data. Explaining how challenge trials could speed up the development of effective vaccines, Rose shares why volunteering was the right decision for her.

Take a mind-blowing trip to the lab as TED Senior Fellow Andrew Pelling shares his research on how we could use fruits, vegetables and plants to regenerate damaged human tissues -- and develop a potentially groundbreaking way to repair complex spinal cord injuries with asparagus.

On a mission to create a hunger-free world, agricultural entrepreneur Cedric Habiyaremye makes the case for cultivating quinoa -- and other versatile, nutrient-rich grains -- in places experiencing malnutrition, like his native Rwanda. He shares a model to help smallholder farmers across Africa diversify their fields with nutritious and indigenous crops, taking a step towards ensuring healthy foods are available and affordable for all.

From the stage to everyday life, theater educator Jo Michael Rezes studies queer identity and the spectrum of gender performance — in its success and failure. Aided by a delightful introduction of campy charm, Rezes explores the freeing potential of playing with gender to better understand ourselves, each other and the spaces we inhabit.

An effective COVID-19 vaccine is just the first step in ending the pandemic, says global health strategist Johanna Benesty. In this illuminating talk, she explores the various barriers to "equitable access" -- making sure COVID-19 therapeutics are available to all -- and shares a creative approach to research and development that could ensure vaccines are rolled out fairly, efficiently and at a global scale.

Here's a talk about tears -- and why crying isn't something to be afraid or ashamed of. Exploring the science behind the mood-boosting power of crying, childbirth and lactation educator Kathy Mendias shows how tears can enhance your physical and mental well-being and deepen your relationship to yourself and others.

As the coronavirus pandemic raged in her native Sri Lanka, monk JayaShri Maathaa had a thought: two magical words that planted something beautiful in her mind and blossomed into a whole new way of being. She shares how this mantra transformed her life -- and the surprising ways gratitude can invite bliss, joy and harmony between yourself and all that surrounds you.

A historic number of Latinx voters participated in the 2020 US presidential election, including a record number of young people casting their ballots for the first time. Civic leader María Teresa Kumar takes a look at the issues closest to youth Latinx voters, including health care, climate equity and racial justice, and considers how this growing demographic could shape American politics for decades to come. Stay tuned for a Q&A with TEDx learning specialist Bianca DeJesus on why the US has a unique opportunity to harness its diversity and define the 21st century.

Activist and author Gloria Steinem is an icon of the global feminist movement. She's spent her life defying stereotypes, breaking social barriers and fighting for equality. In conversation with TEDWomen curator Pat Mitchell, Steinem reflects on the revolutionary roots of the feminist movement, the fundamental need for intersectionality to combat prejudice, and how she overcame her fears with the support of friends. Now she urges future generations of women to advocate for each other in solidarity -- and discover the freedom found in companionship and community.

How do you stand up to authoritarianism? And what does it mean to be "fearless"? In this powerful talk, housewife-turned-politician Sviatlana Tsikhanouskaya describes her unlikely bid to defeat Belarus's long-time autocratic leader in the nation's 2020 presidential election. Painting a vivid picture of how small acts of defiance flourished into massive, peaceful demonstrations, she shares a beautiful meditation on the link between fearlessness and freedom, reminding us that we all have what it takes to stand up to injustice -- we just need to do it together.

In 2014, Erika Cheung made a discovery that would ultimately help bring down her employer, Theranos, as well as its founder, Elizabeth Holmes, who claimed to have invented technology that would transform medicine. The decision to become a whistleblower proved a hard lesson in figuring out how to do what's right in the face of both personal and professional obstacles. With candor and humility, Cheung shares her journey of speaking truth to power -- and offers a framework to encourage others to come forward and act in the service of all.

After losing her mother in a house fire when she was just six years old, Danielle Torley saw two paths before her: a life full of fear, or one that promised healing and recovery. In this inspiring talk, she describes how she turned her grief into beauty in a most unexpected way -- by dancing with fire.

To achieve lasting change sometimes requires the hard, even radical, choice of partnering with people you'd least expect. Justice reform advocate Nisha Anand shares her story of working with her ideological opposite to make history and save lives -- and urges us all to widen our circles in order to make progress with purpose.

Rituals for the dead span much of the natural world, seen in practices from humans and elephants to bees, dolphins and beyond. With charm and playful insight, animal behaviorist Kaeli Swift delves into the life (and death) habits of crows and shares what their responses could reveal about our own relationship to mortality.

The clash of ideas is fundamental to creativity and progress, but it can also be deeply destructive and create divisions within companies, communities and families. How do you foster productive debate while protecting against harmful speech and misinformation? Constitutional lawyer Ishan Bhabha lays out structures that organizations can use to navigate ideological disagreement and responsibly bring facts and context to a larger dialogue.

Venom can kill ... or it can cure. In this fascinating talk, marine chemical biologist Mandë Holford shares her research into animal venom, from killer sea snails to platypuses and slow lorises -- and explores its potential to one day treat human diseases like cancer. The mechanism behind this powerful substance is still mysterious, Holford says, but: "Someday, snail venom might just save your life."

For centuries, the Irish funeral wake has served as a time for people to grieve a life lost and celebrate a life lived, together. In this profound and lyrical talk, poet Kevin Toolis laments the fear and denial of death that characterizes increasingly individualistic societies. He reasons that living life fully means embracing our shared mortality -- and offers simple ways to reconnect with your community, the people you love and even yourself.

Our food systems have not been designed to adapt to major disruptions like climate change, says environmental journalist Amanda Little. In this eye-opening talk, she shows how the climate crisis could devastate our food supply -- and introduces us to the farmers, entrepreneurs and engineers who are radically rethinking what we grow and how we eat, combining traditional agriculture with state-of-the-art technology to create a robust, resilient and sustainable food future.

If the 2020 US presidential election is close, the race could drag on in the courts and halls of Congress long after ballots are cast, says lawyer and political commentator Van Jones. Explaining why the customary concession speech is one of the most important safeguards for democracy, Jones exposes shocking legal loopholes that could enable a candidate to grab power even if they lose both the popular vote and the electoral college -- and shares what ordinary citizens can do if there's no peaceful transfer of power.

Viruses mutate and spread from person to person, a dynamic process that often leaves us playing catch-up when there's a new disease outbreak. What if vaccines worked the same way? Virologist Leor Weinberger shares a scientific breakthrough: "hijacker therapy," a type of medical treatment that could attack, modify and spread alongside a virus, potentially treating afflicted individuals and slowing the spread of infections like HIV.

Over his decades-long career as a political activist, Ralph Nader has helped expose some of the greatest misdeeds of large corporations. You may be familiar with the real-world changes his work sparked: the Clean Air Act, automobile safety laws, regulation of the tobacco industry and more. Tracing the arc of his time advocating for change, Nader shares how he helped catalyze social progress against overwhelming odds -- and shows how you can participate in advancing the common good for generations to come.

Sexual assault is never the victim's fault, says advocate Kristin Jones. In this courageous talk, she tells her story of overcoming the shame that followed sexual abuse as a teenager -- and shares how parents can foster an open conversation about abuse to empower kids and encourage them to ask for help. (This talk contains mature content)

The racial wealth gap in the United States is shocking: white families have a median wealth nearly 10 times greater than that of Black families. How did we get here, and how can we stop the gap from growing? Wealth equity strategist Kedra Newsom Reeves provides a short history on the origins and perpetuation of racial wealth inequality in the US -- and outlines four ways financial institutions can expand opportunity for Black individuals, families, entrepreneurs and communities.

Could CBD, a chemical compound found in the cannabis plant, help treat opioid addiction? Neuroscientist Yasmin Hurd discusses why current treatment strategies, such as methadone, aren't enough to end the opioid epidemic -- and shares how CBD could help reduce the cravings and anxiety associated with drug use and relapse, potentially providing a new, safe and nonaddictive therapy.

Companies worldwide are pledging to play a more meaningful role in the well-being of their employees, customers and the environment. How can they turn their promises into action? From creating a representative boardroom to committing to measurable sustainability goals, business leader Dame Vivian Hunt discusses the necessary changes companies can make to embrace stakeholder capitalism -- and shares how it could change business for good.

IKEA currently makes up 0.1 percent of all global carbon emissions -- but by 2030, they're planning to be carbon negative across their business. Discussing new thinking about the lifespan of their products, from the forest to the landfill, Jesper Brodin and Pia Heidenmark Cook of Ingka Group (IKEA) share their company's steps towards sustainably sourcing materials like cotton and wood and redesigning products to extend their use without compromising on quality or affordability. (Narrated by Rosa Howard)

To understand how life works, you need to watch it in action, says bioimaging scientist Gokul Upadhyayula. Taking us down to the cellular level, he shares the work behind cutting-edge microscopes that capture and record, in three dimensions, the complex behaviors of living organisms -- from infecting cancer cells to crawling immune cells -- and what they're revealing about the dynamics of biology. Watch life unfold before your eyes with the incredible visuals in this talk.

Over the next 200 years, we can expect all of the Earth's glaciers to disappear as a result of climate change -- unless we act now, says writer Andri Snær Magnason. Telling the story of the Okjökull glacier in Iceland, the first glacier lost to global warming, Magnason explains why we need to start connecting to the future in a more intimate, urgent way in order to stabilize the Earth for generations to come.

The global climate crisis will require us to transform the way we act, says His Holiness Pope Francis. Delivering a visionary TED Talk from Vatican City, the spiritual leader proposes three courses of action to address the world's growing environmental problems and economic inequalities, illustrating how all of us can work together, across faiths and societies, to protect the Earth and promote the dignity of everyone. "The future is built today," he says. "And it is not built in isolation, but rather in community and in harmony."

Under the leadership of Lisa Jackson, Apple's environment and social VP and former head of the EPA, the company is already carbon neutral within their own corporate and retail boundaries. By 2030, Apple hopes to extend carbon neutrality to their supply chain and consumers. In conversation with urbanist and spatial justice activist Liz Ogbu, Jackson shares thoughts on leadership, tech, the environment and building a green economy.

Sophie Howe is the world's only future generations commissioner, a new kind of government official tasked with advocating for the interests of generations to come and holding public institutions accountable for delivering long-term change. She describes some of the people-focused policies she's helped implement in Wales, aimed at cutting carbon emissions, increasing sustainability and promoting well-being as a national goal.

Our descendants own the future, but the decisions and actions we make now will tremendously impact generations to come, says philosopher Roman Krznaric. From a global campaign to grant legal personhood to nature to a groundbreaking lawsuit by a coalition of young activists, Krznaric shares examples of ways we can become good ancestors -- or, as he calls them, "Time Rebels" -- and join a movement redefining lifespans, pursuing intergenerational justice and practicing deep love for the planet.

"We start this new decade knowing that it is the most consequential period in history," says Prince William, The Duke of Cambridge. Inspired by President John F. Kennedy's "Moonshot," he calls on us all to rise to our greatest challenge ever: the "Earthshot." A set of ambitious objectives for the planet, the Earthshot goals seek to protect and restore nature, clean the air, revive oceans, build a waste-free world and fix the climate -- all in the next decade. To do it, we'll need people in all corners of the globe working together with urgency, creativity and the belief that it is possible to repair the Earth.

Climate change is the epic challenge of our lives, and community leaders like Rahwa Ghirmatzion and Zelalem Adefris are already working on sustainable, resilient solutions. Through their organizations in Buffalo and Miami, they're focused on durable, affordable housing for under-resourced communities, the most vulnerable to the instability of climate change. Watch for a lesson on how we can work alongside our neighbors to address climate catastrophe and social inequality. (Narrated by Don Cheadle)

Concrete is all around us: we use it to build our roads, buildings, bridges and much more. Yet over the last 2,000 years, the art of mixing cement and using it to bind concrete hasn't changed very much -- and it remains one of the world's biggest emitters of carbon. Entrepreneur Tom Schuler previews an innovative way to create concrete, potentially turning it into a carbon sink that traps CO2 from the atmosphere -- while producing a viable building material.

Concrete is the second most-used substance on Earth (behind water), and it's responsible for eight percent of the world's carbon footprint. Cement researcher Karen Scrivener shares the research behind a pioneering new kind of cement known as LC3, which could slash carbon emissions from this crucial building material by 40 percent, if adopted at scale.

"The good news is it's now clearly cheaper to save the planet than to ruin it," says engineer and investor John Doerr. "The bad news is: we are fast running out of time." In this conversation with climate policy expert Hal Harvey, the two sustainability leaders discuss why humanity has to act globally, at speed and at scale, to meet the staggering challenge of decarbonizing the global economy (which has only ever increased emissions throughout history) -- and share helpful examples of promising energy solutions from around the world.

We need to care for and live in harmony with the environment, says climate and gender activist Ernestine Leikeki Sevidzem. The best way to do that? Nurture a forest generation: one that learns to protect nature. Sevidzem shares how she's educating both children and adults in her native Cameroon on what it means to love and preserve the Earth -- and calls for all of us to foster generations that will inherit a mindset that works with nature, not against it.

Biodiversity is the key to life on Earth and reviving our damaged planet, says ecologist Thomas Crowther. Sharing the inside story of his headline-making research on reforestation, which led to the UN's viral Trillion Trees Campaign, Crowther introduces Restor: an expansive, informative platform built to enable anyone, anywhere to help restore the biodiversity of Earth's ecosystems.

"Nature reveals itself to us in unique ways, if we stop and look at the world through a window of time," says photographer Stephen Wilkes. Using a special photographic technique that reveals how a scene changes from day to night in a single image, Wilkes exposes the Earth's beautiful complexity and the impacts of climate change -- from the disruption of flamingo migrations in Africa to the threat of melting ice -- with unprecedented force.

With the Climate Reality Project, Al Gore is helping mold future leaders to build the movement for climate survival and social justice from the ground up. He introduces us to four of the Project's graduates, each of whom confronts climate change on their own terms: Ximena Loría, founder of Misión 2 Grados, an NGO influencing public policy in Central America; Nana Firman, "daughter of the rainforest" and advocate for climate justice among Indigenous peoples; Gloria Kasang Bulus, a Nigerian activist for women and education; and Tim Guinee, a first responder and climate change fighter in upstate New York. Together, they're gathering local actors into a global, grassroots movement that aims to turn the climate fight around.

People around the world are demanding clean air -- and cities are starting to respond, says electrification advocate Monica Araya. She takes us on a world tour of urban areas that are working to fully electrify their transportation systems over the next decade, shifting to emission-free motorcycles, cars, buses, ferries and beyond. See what a future without the internal combustion engine could look like -- and what it will take to get there.

The divide between the "energy haves" and "energy have-nots" is stark, and their paths towards a zero-carbon emission future are not identical. In this perspective-shifting talk, energy researcher Rose M. Mutiso makes the case for prioritizing Africa's needs with what's left of the world's carbon budget to foster growth and equitably achieve a smaller global carbon footprint.

The fossil fuel industry knows how to stop global warming, but they're waiting for someone else to pay, says climate science scholar Myles Allen. Instead of a total ban on carbon-emitting fuels, Allen puts forth a bold plan for oil and gas companies to progressively decarbonize themselves and sequester CO2 deep in the earth, with the aim of reaching net-zero emissions by 2050 and creating a carbon dioxide disposal industry that works for everyone.

India has a historic opportunity to power its industrialization with clean energy -- and its energy choices will make or break the world's fight against climate change, says clean energy executive, physicist and author Varun Sivaram. Bringing on-the-ground experience as CTO of India's largest renewable energy company, Sivaram proposes a plan for India to achieve three herculean feats, all at the same time -- and reimagine its economy with renewable energy at its heart.

Yvonne Aki-Sawyerr, mayor of Freetown, Sierra Leone, is on a mission to plant a million trees over the next two years, increasing vegetation in her city by fifty percent while shoring up eroding riverbanks and increasing biodiversity. "This isn't just about planting trees; it's about growing trees, and it's about ensuring that each one of us is part of the process," she says. "A million trees is our city's small contribution to increasing the much-needed global carbon sink."

Living in a city means accepting a certain level of dysfunction: long commutes, noisy streets, underutilized spaces. Carlos Moreno wants to change that. He makes the case for the "15-minute city," where inhabitants have access to all the services they need to live, learn and thrive within their immediate vicinity -- and shares ideas for making urban areas adapt to humans, not the other way around.

Comedian Aparna Nancherla loves to take out the trash. In this funny and sharp meditation on garbage -- "the stuff that our modern, consumerist, carbon-powered culture makes us buy endlessly, and often for no reason" -- she shares thoughts on how to use less in a world that's choking on ever-larger piles of waste.

In 2019, Amazon signed the Climate Pledge, a commitment to become a net-zero carbon business by 2040. Dave Clark, Amazon's chief of consumer retail, and Kara Hurst, head of the company's sustainability efforts, sit down with entrepreneur and activist Lindsay Levin to discuss how the company is planning to reduce its carbon footprint across all aspects of business -- while inviting other companies to join them in this massive transformation.

How do we tell stories of humanity and nature at a time when our planet is burning? Novelist Elif Shafak invites us to listen to the trees, whose experience of time, stillness and impermanence is utterly different from our own. "Hidden inside [their] story is the past and the future of humanity," she says.

"Business is screwed if we don't fix climate change," says economist Rebecca Henderson. In this bold talk, she describes how unchecked capitalism destabilizes the environment and harms human health -- and makes the case for companies to step up and help fix the climate crisis they're causing. Hear what a reimagined capitalism, in which companies pay for the climate damage they cause, could look like.

Known for big, attention-grabbing installations -- like his four towering waterfalls in New York's East River -- Olafur Eliasson has scaled down his latest project, Earth Speakr: an art platform for kids designed to spur budding climate activists to lead discussions on nature, conservation, pollution and more.

With the ambitious goal of becoming the first carbon-neutral continent by 2050, the European Union has committed to creating a greener world for future generations. In this bold talk, Ursula von der Leyen, President of the European Commission, details the challenges and opportunities that come with transitioning an entire continent to clean energy -- and shows why fixing climate change calls for everyone to take action.

"History has shown us that in moments of crisis, society can truly transform," says environmental educator Severn Cullis-Suzuki. Nearly 30 years ago, at just 12 years old, she spoke at the UN's Earth Summit in hopes of reversing the planet's slide into ecological disaster. Some at the summit listened and took radical action, but for the rest of the world, it was business, politics and full-steam-ahead economic growth. Now, Cullis-Suzuki shares another warning about the future, this time informed by the COVID-19 crisis -- and urges us all to make our actions on climate change reflect our words.

"This decade is a moment of choice unlike any we have ever lived," says Christiana Figueres, the architect of the historic 2015 Paris Agreement. The daughter of Costa Rica's beloved President José Figueres Ferrer, she shares how her father's unwillingness to lose the country he loved taught her how stubborn optimism can catalyze action and change. With an unshakeable determination to fight for the generations that will come after us, Figueres describes what stubborn optimism is (and isn't) -- and urges everyone to envision and work for the future they want for humanity.

Why has there been so little mention of saving Black lives from the climate emergency? For too long, racial justice efforts have been distinguished from climate justice work, says David Lammy, Member of Parliament for Tottenham, England. In a stirring talk about building a new movement to care for the planet, Lammy calls for inclusion and support of Black and minority leadership on climate issues and a global recognition that we can't solve climate change without racial, social and intergenerational justice.

"If we don't act now on climate change, this coming century may be one of humanity's last," says António Guterres, Secretary-General of the United Nations. As the world recovers from the COVID-19 pandemic, Guterres urges us to use this moment to rebuild with ambitious climate action in mind -- and lays out a blueprint for getting companies, governments and countries to reach net-zero carbon emissions by 2050. "We can only win the race to zero together," he says. "I urge you all to get on board."

Cities pump out 70 percent of all global carbon emissions -- which means they also have the greatest opportunity to lower CO2 levels and energy consumption. Climate and data scientist Angel Hsu shares how cities around the world are leading the response to climate change by innovating new, low-carbon ways of living.

"For the first time, we are forced to consider the real risk of destabilizing the entire planet," says climate impact scholar Johan Rockström. In a talk backed by vivid animations of the climate crisis, he shows how nine out of the 15 big biophysical systems that regulate the climate -- from the permafrost of Siberia to the great forests of the North to the Amazon rainforest -- are at risk of reaching tipping points, which could make Earth uninhabitable for humanity. Hear his plan for putting the planet back on the path of sustainability over the next 10 years -- and protecting the future of our children.

We could realistically see people starting to live and work on the Moon in the next decade -- and how we do it matters, says space policy researcher Jessy Kate Schingler. In this fascinating talk, she discusses the critical issues that arise when we consider civilization in outer space -- such as governance, property rights and resource management -- and shows how the Moon can be a template for solving our biggest challenges here on Earth.

Do you need some help? It's OK to ask, says YeYoon Kim, a former kindergarten teacher who learned from her students how powerful and courageous it can be to reach out for support. Sharing the story of one of the most difficult periods in her life, Kim explores the happiness and joy that can come from leaning on those you love in times of need -- and encourages the rest of us to start asking for help more often.

Botanical artist Nirupa Rao captures the spirit and beauty of nature in watercolor. With a portfolio of enchanting, scientifically accurate illustrations, she aims to reignite our emotional connection to the environment -- and open our eyes to an entire kingdom hidden in plain sight.

Racism thrives on your silence and apathy, says human rights lawyer Dexter Dias. Telling the story of a harrowing UK court case that spotlights the corrosive effects of injustice, Dias urges us all to speak out and expose toxic myths about race -- in order to allow hope, change and justice to flourish.

How do music and psychedelics impact your brain? Neuroscientist Frederick Streeter Barrett discusses the specific neural regions activated when you listen to music and undergo the effects of psychedelic drugs like LSD or psilocybin (magic mushrooms). Learn about his research on how these experiences, when paired with the right conditions, may support emotional growth and healing from mood disorders such as depression and anxiety.

To understand and eradicate racist thinking, start at the beginning. That's what journalist and documentarian John Biewen did, leading to a trove of surprising and thought-provoking information on the "origins" of race. He shares his findings, supplying answers to fundamental questions about racism -- and lays out an exemplary path for practicing effective allyship.

We need to think beyond national borders to solve global problems, says activist Colombe Cahen-Salvador. Reimagining the world's fractured systems of governance and calling out their ineffective responses to major issues -- from the coronavirus pandemic to climate change and human rights -- she introduces NOW!, a movement unifying people to create a truly democratic world.

There's a lot we can learn from Mongolian nomads about how to survive in the years to come, says environmental activist Khulan Batkhuyag. Taking us on a journey through the country's stunning rural landscape, she shows how Mongolian nomads have survived in remote areas for thousands of years by virtue of some truly incredible, earth-friendly, zero-waste innovations. There's wisdom here for all of us on how to live more minimally, sustainably and in harmony with Mother Nature.

Could we exit our solar system, and enter another? Astrophysicist Philip Lubin discusses the awesome potential of using lasers to propel small spacecraft, enabling humanity's first interstellar missions. Learn how this transformative technology could help us reach Proxima Centauri, the nearest star to our own -- and fundamentally alter our understanding of the universe along the way.

To move forward in the United States, we must look back and confront the difficult history that has shaped widespread injustice. Revisiting a significant yet overlooked piece of the past, Hasan Kwame Jeffries emphasizes the need to weave historical context, no matter how painful, into our understanding of modern society -- so we can disrupt the continuum of injustices massively affecting marginalized communities.

What does it take to cultivate a culture of innovation and reinvention at work? Tracing his journey from math teacher to honesty-seeking executive, Netflix co-CEO Reed Hastings describes three key elements of a successful work culture, sharing how to design a company around inspiration, creativity and candor. (This discussion, hosted by head of TED Chris Anderson, was recorded September 4, 2020.)

Social psychologist Dannagal G. Young breaks down the link between our psychology and politics, showing how personality types largely fall into people who prioritize openness and flexibility (liberals) and those who prefer order and certainty (conservatives). Hear why both sets of traits are crucial to any society -- and how our differences are being dangerously exploited to divide us. What if things weren't that way?

In a deeply moving letter to her grandmother, Xiye Bastida reflects on what led her to become a leading voice for global climate activism -- from mobilizing school climate strikes to speaking at the United Nations Climate Summit alongside Greta Thunberg -- and traces her resolve, resilience and profound love of the earth to the values passed down to her. "Thank you for inviting me to love the world since the moment I was born," she says.

Are you in control of your choices? Magic tricks might reveal otherwise, says scientist and illusionist Alice Pailhès. Watch closely as she performs magic tricks that unveil how your brain works, how you can be subtly influenced and what that means for free will and your day-to-day life. Did she guess your card right?

Chance plays a far bigger role in life than we're willing to admit, says psychologist Barry Schwartz. Of course, working hard and following the rules can get you far -- but the rest could boil down to simple good fortune. Schwartz examines the overlooked link between luck, merit and success, offering an intriguing solution to equalize opportunity -- starting with college admissions.

In 2008, the global financial crisis decimated Latvia. As unemployment skyrocketed, the government slashed public funding and raised taxes, while providing relief to the wealthy and large businesses -- all without backlash or protest from struggling citizens. Sociologist Liene Ozoliņa examines how Latvian officials convinced their people to accept responsibility for the country's failing economy -- and highlights the rise of similar social policies upholding inequality worldwide.

As prescription drug costs skyrocket in the US, thousands of people are forced to forgo lifesaving medications -- all while manufacturers and health care facilities systematically destroy perfectly good, surplus pills. Kiah Williams shares how SIRUM -- a nonprofit that delivers unused medications to families who need them most -- plans to drive down prescription prices by recycling almost a billion dollars' worth of medications in the next five years. (This ambitious plan is a part of the Audacious Project, TED's initiative to inspire and fund global change.)

"If we want to fix our politics, we have to do something about inequality," says social psychologist Keith Payne. Showing how economic inequality changes the way people see and behave towards one another, Payne helps explain the rise of the political polarization that's slicing up society -- and challenges us to think twice the next time we dismiss someone for the sake of politics.

The secret to winning an argument isn't grand rhetoric or elegant style, says US Supreme Court litigator Neal Katyal -- it takes more than that. With stories of some of the most impactful cases he's argued before the Court, Katyal shows why the key to crafting a persuasive and successful argument lies in human connection, empathy and faith in the power of your ideas. "The question is not how to win every argument," he says. "It's how to get back up when you do lose."

When you're on opposite sides of an issue, how do you broker peace with your adversaries and work together to solve a problem? Follow along as animal rights activist Leah Garcés recounts three lessons she learned in hatching an ambitious plan to end chicken factory farming with the last person she expected: a chicken farmer.

What can you do to build a better world? Sharing stories from her pioneering career dedicated to tackling poverty, Jacqueline Novogratz offers three principles to spark and sustain a moral revolution. Learn how you can commit (or recommit) to creating big, positive change in your lifetime -- and give back more to the world than you take from it. "It is in the darkest times that we have the chance to find our deepest beauty," Novogratz says.

"Lies are more engaging online than truth," says former CIA analyst and diplomat Yaël Eisenstat. "As long as [social media] algorithms' goals are to keep us engaged, they will feed us the poison that plays to our worst instincts and human weaknesses." In this bold talk, Eisenstat explores how social media companies like Facebook incentivize inflammatory content, contributing to a culture of political polarization and mistrust -- and calls on governments to hold these platforms accountable in order to protect civil discourse and democracy.

At least 400 million people worldwide live in ultra-poverty: a state of severe financial and social vulnerability that robs many of hope and dignity. At BRAC, an international development organization focused on fighting poverty, Shameran Abed and his team have developed a sustainable, multi-faceted program that has already helped millions lift themselves out of poverty and create lives full of possibility. Learn more about their audacious plan to partner with governments to bring this life-changing program to an additional 21 million people in the next six years. (This ambitious plan is a part of the Audacious Project, TED's initiative to inspire and fund global change.)

What drives someone to commit politically motivated violence? The unsettling answer lies in daily habits. Behavioral historian Christiane-Marie Abu Sarah shares startling insights into how seemingly mundane choices can breed polarization that lead to extreme, even deadly, actions -- and explains how to identify and bypass these behaviors in order to rediscover common ground.

What's the purpose of a company? In this bold talk, activist and filmmaker Abigail Disney imagines a world where companies have a moral obligation to place their workers above shareholders, calling on Disney (and all corporations) to offer respect, dignity and a living wage to everyone who works for them.

A head start doesn't always ... well, help you get ahead. With examples from sports, technology and economics, journalist David Epstein shares how specializing in a particular skill too early in life may undermine your long-term development -- and explains the benefits of a "sampling period" where you try new things and focus on building a range of skills. Learn how this broader, counterintuitive mindset (and more forgiving timeline) could lead to a more fulfilling life, personally and professionally.

Inspired by Nordic folklore, artists Karoline Hjorth and Riitta Ikonen collaborate with local elders -- farmers, fishermen, cosmologists and more -- to create richly imaginative portraits that explore humanity's connection to nature. Discover their serendipitous artistic practice as they share a selection of fantastical imagery where nature and myth intersect to awaken a sense of wonder.

NASA's Dragonfly -- a robotic rotorcraft-lander that's designed to hop across the surface of an extraterrestrial body -- is set to voyage deep into the solar system to explore Titan, Saturn's largest moon, in 2026. Planetary scientist Elizabeth "Zibi" Turtle shares how studying this mysterious moon that's thought to resemble the early Earth could bring us closer to understanding the habitability of other planets -- and the origin of life itself.

In the US, Black women are nearly 300 percent more likely to die as a result of childbirth than white women. Sharing appalling statistics on maternal mortality as well as her own tragic story of loss, Wanda Irving explains how racism and bias in health care minimizes and dismisses Black women's pain -- and makes a personal plea for leaders in the medical community to take steps toward reform.

For intersex people -- those born with sex characteristics outside the traditional definitions of female and male -- the stakes to appear "normal" are high. Drawing on her personal experience, Susannah Temko reveals the shame, prejudice and harm faced by the intersex community, as they're forced to conform to a binary understanding of sex that ultimately hinders their health and well-being. She calls on us all to discard outdated notions of biological sex and accept the complexity within humanity.

What accounts for our polarized public life, and how can we begin to heal it? Political philosopher Michael Sandel offers a surprising answer: those who have flourished need to look in the mirror. He explores how "meritocratic hubris" leads many to believe their success is their own doing and to look down on those who haven't made it, provoking resentment and inflaming the divide between "winners" and "losers" in the new economy. Hear why we need to reconsider the meaning of success and recognize the role of luck in order to create a less rancorous, more generous civic life.

In cities, evolution occurs constantly, as countless plants, animals and insects adapt to human-made habitats in spectacular ways. Evolutionary biologist Menno Schilthuizen calls on peculiar beings such as fast food-loving mice and self-cooling snails to illustrate the ever-transforming wonders of urban wildlife -- and explains how you can observe this phenomenon in real-time, thanks to a global network of enthusiastic citizen scientists.

Popular music is often riddled with misogynistic lyrics that objectify and demean women ... so why are we listening and dancing to it? Performing a sample of her original song "Top Knot Turn Up" and sharing clips from her female-directed music video of "See Me Thru," activist and musician Madame Gandhi explains why she's making sex-positive music that doesn't contribute to anyone's oppression -- and calls on music lovers to get down to tunes that empower everyone.

The path to better food is paved with data, says entrepreneur Erin Baumgartner. Drawing from her experience running a farm-to-table business, she outlines her plan to help create a healthier, zero-waste food system that values the quality and taste of small, local farm harvests over factory-farmed produce.

Refugees fleeing persecution endure unimaginable hardships in search of a better life. Physician Joseph Shin explains the essential collaboration of doctors and lawyers working together to help asylum seekers in the United States, sharing promising pathways toward securing the human dignities they deserve.

What does it look like inside the mind of a machine? Inspired by the architectural vision of a futuristic Los Angeles in "Blade Runner," media artist Refik Anadol melds art with artificial intelligence in his studio's collaborations with architects, data scientists, neuroscientists, musicians and more. Witness otherworldly installations that might make you rethink the future of tech and creativity.

Want to help map the world? Community builder Rebecca Firth explains how the Humanitarian OpenStreetMap Team (HOT) is using open-source software powered by volunteers to put one billion people on the map in the next five years. (This ambitious plan is a part of the Audacious Project, TED's initiative to inspire and fund global change.)

"Some call me a soul sonic superstar," says Jomama Jones, the alter ego of TED Fellow and theater artist Daniel Alexander Jones. In this stunning talk and performance, Jomama Jones invites us to consider how coming undone can be the first step toward transformation. It's a powerful story of community, growth and renewal -- and how breaking apart can mean breaking open.

Why do people distrust vaccines? Anthropologist Heidi Larson explores how medical rumors originate, spread and fuel resistance to vaccines worldwide. While vaccines cannot escape the "political and social turbulence" that surrounds them, she says, the first step to stopping the spread of disease is to talk to people, listen and build trust.

What can you hear in silence? In this exploration of sound, host of the podcast "Twenty Thousand Hertz" Dallas Taylor tells the story of arguably the most debated musical composition in recent history -- composer John Cage's iconic piece 4'33" -- and invites you to take notice of the soundscape around you. Watch to the end to experience a performance of 4'33''.

At age 16, journalist and filmmaker Jose Antonio Vargas found out he was in the United States illegally. Since then, he's been thinking deeply about immigration and what it means to be a US citizen -- whether it's by birth, law or otherwise. In this powerful talk, Vargas calls for a shift in how we think about citizenship and encourages us all to reconsider our personal histories by answering three questions: Where did you come from? How did you get here? Who paid?

In her global exploration of Indigenous design systems, architect Julia Watson researches enduring innovations that could help us counter the challenges of climate change. From floating villages to living root bridges that strengthen over time, Watson introduces us to some of these resilient solutions -- and shows how they can teach us to design with nature, instead of against it.

We have archives of films, newspapers, even seeds -- what if we could make one for the entire surface of the earth? Drawing on his experience mapping an ancient city in the Honduran jungle, archaeologist Chris Fisher makes the case for scanning the whole planet with LiDAR -- a technology that uses lasers shot from an airplane to map the ground -- in order to preserve our cultural and ecological heritage.

Far-UVC light is a type of ultraviolet light that kills microbes and viruses and, crucially, seems to be safe to use around humans. Radiation scientist David Brenner describes how we could use this light to stop the spread of SARS-CoV-2, the virus responsible for COVID-19, in hospitals, nursing homes, trains and other public indoor spaces -- paving the way for a potentially game-changing tool in the fight against the coronavirus pandemic. (This virtual conversation, hosted by TED science curator David Biello, was recorded July 7, 2020.)

Reflecting on moments that shaped his life, actor Ethan Hawke examines how courageous expression promotes healing and connection with one another -- and invites you to discover your own unabashed creativity. "There is no path till you walk it," he says.

Yann LeCun, the chief AI scientist at Facebook, helped develop the deep learning algorithms that power many artificial intelligence systems today. In conversation with head of TED Chris Anderson, LeCun discusses his current research into self-supervised machine learning, how he's trying to build machines that learn with common sense (like humans) and his hopes for the next conceptual breakthrough in AI.

People everywhere are using Zoom to work, take classes, do yoga -- and even get married. The company's CEO and founder Eric Yuan reflects on how they developed the world's most popular video chat software and envisions a digital future that will include things like virtual handshakes and real-time language translations to rival face-to-face gatherings. (This virtual conversation, hosted by TED technology curator Simone Ross, was recorded July 6, 2020.)

"We are living through the tech-enabled unraveling of full-time employment itself," says anthropologist Mary L. Gray. As the pandemic exposes and accelerates the shift to on-demand online labor, Gray takes us inside the jobs being created to solve the problems artificial intelligence can't handle -- and explains why our economic recovery hinges on extending essential benefits to all workers. (This virtual conversation, hosted by TED business curator Corey Hajim, was recorded July 6, 2020.)

Crisis interventions often focus on a single aspect of a big, complicated problem, failing to address the broader social and economic context. Kwame Owusu-Kesse describes how the Harlem Children's Zone is taking a more holistic approach to the pandemic, weaving together a network of services to help communities recover and rebuild. Learn more about their comprehensive COVID-19 relief and recovery response focused on five primary areas of need -- and their plans to scale it across the US. (This ambitious plan is a part of the Audacious Project, TED's initiative to inspire and fund global change.)

Poet and policymaker Aaron Maniam describes how the language we use to explain COVID-19 shapes the way we think about it -- whether it's as a "war," a "journey" or, as he suggests, an "ecology." He encourages us to explore a range of imaginative, interlocking metaphors to gain a deeper understanding of the pandemic -- and shows how this can help us to envision a better, more inclusive future. (This virtual conversation, hosted by TED's head of curation Helen Walters and arts and design curator Chee Pearlman, was recorded June 10, 2020.)

Civil rights leader and longtime US congressman John Lewis spent his life fighting for freedom and justice for everyone. In this illuminating conversation with lawyer and activist Bryan Stevenson, Lewis discusses the essential importance of voting, shares encouraging words of wisdom for the generation of young people currently organizing in the struggle for racial justice and tells moving stories from his decades of making "good trouble" -- at the Freedom Rides, March on Washington and in the halls of Congress. "When you see something that's not right or fair or just, you have to say something," Lewis says. "You have to do something." (This conversation is part of the TED Legacy Project. Recorded November 19, 2019)

On July 20, 2012, a mass shooting in a movie theater of Aurora, Colorado left the town, and the nation, reeling. To many -- including Tom Teves, who lost his son in the tragedy -- the news coverage that followed focused on all the wrong things. Why did the reporting overwhelmingly fixate on the shooter rather than the lives of the victims or the heroic efforts of first responders? With urgency and measure, Teves calls for media attention that acts in the interest of the public (instead of profit) by revoking what shooters want most: infamy.

Investors tend to think in daily and quarterly numbers, leading to a system that can harm the future health of the economy and planet. Michelle Greene explains how the Long-Term Stock Exchange is reimagining public markets by holding companies to forward-thinking standards of diversity and inclusion, employee investment and environmental responsibility -- and generating better outcomes for everyone involved. (This virtual conversation, hosted by TED business curator Corey Hajim, was recorded June 24, 2020.)

What does Kendrick Lamar have in common with Disney's "Moana"? They recognize our common humanity and show us how to love ourselves and one another, says writer and educator Chloé Valdary. She shares how she uses pop culture to help people develop resilience and advance social change -- and explains why cultivating love is the key to connection, healing and moving forward together. (This virtual conversation, hosted by TED business curator Corey Hajim, was recorded June 30, 2020.)

What if you could help decide how the government spends public funds in your community? That's the idea behind participatory budgeting, a process that brings local residents and governments together to develop concrete solutions to real problems close to home. In this inspiring call to action, community leader Shari Davis shows how participatory budgeting can strengthen democracy, transform neighborhoods and cities -- and give everyone a seat at the table. "We've got to open the doors to city halls and schools so wide that people can't help but walk in," she says.

A more equal world starts with you. Citing a formative moment from her own life, equity advocate Nita Mosby Tyler highlights why showing up and fighting for others who face injustices beyond your own lived experience leads to a fairer, more just future for all.

"If you change your city, you're changing the world," says Eric Garcetti, mayor of Los Angeles and chair of C40 Cities, a network of the world's megacities committed to tackling the climate crisis. He shares tangible ways Los Angeles and other cities across the globe are promoting economic and social justice while taking concrete action on climate change -- and talks about how to create a more inclusive, green and sustainable society as we rebuild from COVID-19. (This virtual conversation, hosted by TED's current affairs curator Whitney Pennington Rodgers, was recorded July 7, 2020.)

With clarity and insight, economist and author William "Sandy" Darity discusses how the grievous injustice of slavery in the US led to the immense wealth gap that currently exists between Black and white Americans. He explains how reparations for descendants of enslaved people would work -- and why it's necessary that the US engage in this act of compensation and redemption to make progress towards true equality. (This virtual conversation, hosted by TED's current affairs curator Whitney Pennington Rodgers, was recorded June 30, 2020.)

In this tour of the microscopic world, explorer and artist Ariel Waldman introduces the charismatic creatures lurking beneath Antarctica's massive ice sheet, the largest on earth. From "cuddly" water bears to geometric algae made of glass, Waldman shows how this seemingly barren landmass is actually a polar oasis of life -- if we just know where to look.

Reducing violence in cities in the US isn't the impossible, intractable challenge many believe it to be, says crime researcher and educator Thomas Abt. He explains how urban violence is "sticky" -- meaning that it clusters among a surprisingly small number of people and places -- and presents an innovative, targeted strategy to make our cities safer, right now, without big budgets or new laws.

"We've been promised a future of chrome -- but what if the future is fleshy?" asks biological designer Christina Agapakis. In this awe-inspiring talk, Agapakis details her work in synthetic biology -- a multidisciplinary area of research that pokes holes in the line between what's natural and artificial -- and shares how breaking down the boundaries between science, society, nature and technology can lead us to imagine different possible futures.

Education activist (and recent Oxford graduate) Malala Yousafzai reflects on the defining moments of her life, how she balances passion with personhood and where the world finds itself during the COVID-19 crisis. With humor and humility, she shares her dreams of seeing social progress in her lifetime, explains why girls education advocacy must not relent during the pandemic and champions youth activists worldwide leading the fight for a fairer future for all. (This virtual conversation, hosted by TED's current affairs curator Whitney Pennington Rodgers, was recorded July 8, 2020.)

If we want to build back better after the pandemic, we must reconsider philanthropy and create a new kind of capitalism that's rooted in generosity and accountability, says Darren Walker, president of the Ford Foundation. In this vital conversation, Walker calls for citizens and corporations to question the inequality that makes their wealth possible, to think about their own complicity in creating economic injustice and to celebrate the critical role art plays in creating a culture that uplifts everyone. (This virtual conversation, hosted by head of TED Chris Anderson, was recorded July 1, 2020.)

While on lockdown, the galleries of Singapore's iconic ArtScience Museum were empty -- but online, the museum was abuzz. Honor Harger shares how they're engaging deeply with its visitors through streamed talks, performances and workshops that investigate the COVID-19 landscape and uplift marginalized voices. (This virtual conversation, hosted by TED's current affairs curator Whitney Pennington Rodgers, was recorded June 17, 2020.)

Legendary primatologist Jane Goodall says that humanity's survival depends on conservation of the natural world. In conversation with head of TED Chris Anderson, she tells the story of her formative days working with chimpanzees, how she transformed from a revered naturalist into a dedicated activist and how she's empowering communities around the world to save natural habitats.

Meet the friendly robot that could deliver your next burrito. Ali Kashani introduces us to Postmates' autonomous delivery robot and explains how it could help reduce carbon emissions and free up valuable real estate in cities everywhere. Learn more about how it was specially designed to navigate complex social interactions on busy sidewalks to bring you your food (and more) with joy.

Museums are vessels of memory, knowledge, inspiration and dreams. Anne Pasternak, director of the Brooklyn Museum, makes the case for cultural institutions to take a leading role in supporting the world's recovery from COVID-19 -- and shows how, in times of turmoil and disruption, the arts help us come together, heal and rebuild a better society. (This virtual conversation, hosted by TED arts and design curator Chee Pearlman, was recorded June 17, 2020.)

People send 100 billion WhatsApp messages every day -- and they're all encrypted to protect them from potentially curious entities like companies, governments and even WhatsApp itself. With our increased reliance on digital communication tools during the COVID-19 pandemic, our fundamental right to privacy is more important than ever, says Will Cathcart, head of WhatsApp. He describes the tech and protocols the company built to prevent encryption services from being misused to spread disinformation or commit crimes -- while still safeguarding privacy. (This virtual conversation, hosted by head of TED Chris Anderson, was recorded June 16, 2020.)

In the face of three simultaneous crises -- health, the economy and climate -- do we have a chance to do capitalism differently? Economist Mariana Mazzucato explains why we shouldn't try to go back to normal after the pandemic but should instead rethink how governments work together with businesses to solve big problems. Learn more about how governments can play a dynamic, proactive role in shaping markets and sparking innovation -- instead of just responding to broken systems. (This virtual conversation, hosted by TED Global curator Bruno Giussani, was recorded June 22, 2020.)

"Africa is like a sleeping giant," says journalist and satirist Adeola Fayehun at the beginning of this hilarious, incisive talk. "The truth is I am trying to wake up this giant. That's why I air the dirty laundry of those in charge." Follow along as she roasts corrupt African officials and shows why the continent already has all it needs to take its rightful place on the world stage -- if only leaders would start taking responsibility.

At the crossroads of life and livelihood, scholar D-L Stewart invites us into scenes from his own life as he resists and reflects on the dehumanizing narratives that shape the Black trans experience in the US. With each word of his captivating and poetic dissection, Stewart emphasizes the magnitude and urgency of the rallying cry "Black trans lives matter" -- and calls on others to uphold that truth, too.

An artwork's color or composition can pull you in -- and put you on the path to having important and difficult conversations, says artist Titus Kaphar. In this stunning talk, he reflects on his artistic evolution and takes us on a tour of his career -- from "The Jerome Project," which draws on religious icons to examine the US criminal justice system, to "From a Tropical Space," a haunting body of work that centers around Black mothers whose children have disappeared. Kaphar also shares the idea behind NXTHVN, an arts incubator and community for young people in his hometown.

Bill Gates talks best (and worst) case scenarios for the coronavirus pandemic in the months ahead, explaining the challenges of reducing virus transmission, providing an update on promising vaccine candidates, offering his thoughts on reopening and even taking a moment to address conspiracy theories circulating about himself. Stay tuned for his critical call to fellow philanthropists to ramp up their action, ambition and awareness to create a better world for all. (This virtual conversation, hosted by head of TED Chris Anderson, was recorded June 29, 2020.)

When your future is uncertain, how do you keep moving forward? In this courageous talk, oncologist and cancer survivor Shekinah Elmore shares how she embraced life after a rare genetic diagnosis -- and explains why she believes doctors have a duty to help their patients learn to live with radical uncertainty.

Around the world, Indigenous food cultures vanish because of industrialized agriculture and a shifting, Western-influenced concept of the ideal diet. Food researcher Aparna Pallavi explores why once-essential culinary traditions disappear from people's lives and memories almost without notice -- and serves up a subtle solution to revitalize our connection to the foods we eat.

"Life doesn't go from A to B -- it's messy," says sailing legend Tracy Edwards. In this inspiring talk, she tells how she went from teenage misfit to skipper of the first all-female crew in the toughest race on the seas -- and how she now helps young people around the world achieve their dreams, too.

Developing a vaccine usually takes five to 10 years, costs about a billion dollars and has a failure rate of 93 percent. Under the pressure of the coronavirus pandemic, scientists are being asked to speed that timeline up to 12 to 18 months, says Jerome Kim, director general of the International Vaccine Institute. How are things going? Kim updates us on the varied field of vaccine candidates and discusses the challenges of making sure the one that works gets distributed to the whole world. (This virtual conversation, hosted by head of TED David Biello, was recorded June 15, 2020.)

Cities are engines of culture, commerce, knowledge and community, but they're also centers of inequality and poverty. As the world rebuilds from the coronavirus pandemic, can we transform cities into bastions of equity and sustainability? Architect and educator Vishaan Chakrabarti discusses a new urban agenda that provides equitable housing, health care and transportation for all -- and helps build cities rooted in our desire to connect at a human level. "We need a new narrative of generosity, not austerity," he says. (This virtual conversation, hosted by TED arts and design curator Chee Pearlman and head of curation Helen Walters, was recorded June 10, 2020.)

"I was the first woman president of an African nation, and I do believe more countries ought to try that," says H.E. Ellen Johnson Sirleaf, Nobel laureate and former president of Liberia. Telling the story of how Liberian women helped rebuild their country after years of civil war, Sirleaf discusses why gender equality is essential to peace and prosperity -- and shares her plan to uplift a generation of women prepared to take leadership positions and catalyze social change.

How can we disagree with one another, respectfully and productively? In this thoughtful talk, team builder Matt Trombley reflects on "agonism" -- the tendency to take a rigid stance on issues -- and shares why finding aspects of agreement can be the first step in resolving conflict. "When you can find even the smallest bit of common ground with somebody, it allows you to understand the beautiful wonder and complexity and majesty of the other person," he says.

How do you end a story? Host of "Radiolab" Jad Abumrad tells how his search for an answer led him home to the mountains of Tennessee, where he met an unexpected teacher: Dolly Parton.

The coronavirus brought much of the world to a standstill, dropping carbon emissions by five percent. Al Gore says keeping those rates down is now up to us. In this illuminating interview, he discusses how the steadily declining cost of wind and solar energy will transform manufacturing, transportation and agriculture, offer a cheaper alternative to fossil fuels and nuclear energy and create millions of new jobs. Stay tuned for a lively debate about geoengineering and hear Gore's thoughts about how humanity can create a clean, prosperous future through a focused global effort and a generation of young people committed to change. (This virtual conversation, hosted by head of TED Chris Anderson, was recorded June 23, 2020.)

Conventional vaccine testing is a slow, years-long process. As thousands of people continue to die each day from COVID-19, bioethicist Nir Eyal proposes a radical idea that could dramatically accelerate the vaccine development timeline: "human challenge trials," in which scientists would deliberately expose volunteers to the virus to more quickly determine a vaccine's efficacy. (This virtual conversation, hosted by head of TED Chris Anderson, was recorded June 15, 2020.)

Legendary hip-hop producer Swizz Beatz is on a mission to revolutionize the way artists do business. In this glorious talk, he shares some of the ways he's helping fellow creatives thrive, including a roving art fair that gives artists 100 percent of their sales, a new commission system for galleries to fund living visual artists and Verzuz, online musical celebrations that bring joy to fans -- and sales to musicians. "If we're not protecting the arts, we're not protecting our future," he says.

Offering a vision of Afghanistan that goes beyond what's often depicted in the media, President Ashraf Ghani shares his thoughts on peacemaking, the true cost of war, the nation's COVID-19 response strategy and the sweeping economic and social reforms happening throughout the country. "The ultimate goal is a sovereign, democratic, united Afghanistan at peace with itself and the world," he says. (This virtual conversation, hosted by head of TED Chris Anderson, was recorded June 16, 2020.)

Colonialism remains an inescapable blight on the present, lingering in the toxic, internalized mythologies and stereotypes that have outlived the regimes that created them, says historian Farish Ahmad-Noor. Examining why these prejudices and narratives persist (and sometimes thrive), he suggests a multidisciplinary approach to reject cultural obsessions with romanticized history and prevent this nostalgia from perpetuating past oppressions.

Can technology create a democracy that's fast, fair ... and even fun? Digital minister Audrey Tang shares how Taiwan avoided a COVID-19 shutdown in early 2020 through innovations like developing apps to map mask availability, crowdsourcing ideas that could become laws and creating a "humor over rumor" campaign to combat disinformation with comedy. (This virtual conversation, hosted by TED science curator David Biello and current affairs curator Whitney Pennington Rodgers, was recorded June 1, 2020.)

Out of the more than 70 million displaced people worldwide, only three percent have access to higher education. The Global Education Movement (GEM) is on a mission to change that with the first large-scale initiative of its kind to help refugee learners get bachelor's degrees and create pathways toward employment. Hear from students and the program's executive director, Chrystina Russell, about how GEM's flexible, competency-based model sets graduates up for success and empowerment wherever they are.

Our brains create categories to make sense of the world, recognize patterns and make quick decisions. But this ability to categorize also exacts a heavy toll in the form of unconscious bias. In this powerful talk, psychologist Jennifer L. Eberhardt explores how our biases unfairly target Black people at all levels of society -- from schools and social media to policing and criminal justice -- and discusses how creating points of friction can help us actively interrupt and address this troubling problem.

At the intersection of precision medicine and vaccinology lies a revolutionary scientific pursuit: personalized vaccines. Infectious disease specialist Ofer Levy introduces this promising medical approach, in which tailored immunizations could counteract the mutations that make diseases so dangerous, and shares how we're now venturing into a new era of sustaining and supporting human life.

Investigative journalist Katherine Eban set out to report on a seemingly straightforward question: Are generic drugs really identical to their brand-name counterparts? The answer sparked a decade of interviews, meetings with whistleblowers, on-the-ground reporting across four continents and digging into confidential FDA documents. In this alarming talk, she takes us inside overseas manufacturing plants and exposes the fraud behind many low-cost generic medicines.

Developing countries need strong alliances between the public and private sectors to rebuild after COVID-19, says Achim Steiner, administrator for the United Nations Development Programme (UNDP). From building virus tracking systems to supporting clean energy projects and expanding health care, hear how the UNDP is creating partnerships between states and the financial, communications, technology and insurance sectors to rebuild stronger, greener economies post-pandemic. (This virtual conversation, hosted by political commentator Sally Kohn and TED global curator Bruno Giussani, was recorded June 8, 2020.)

Athletes train their bodies to run faster, jump higher, throw farther -- so why don't they train their minds, too? Seattle Seahawks quarterback Russell Wilson talks about the power of "neutral thinking," which helps him thrive under pressure (both on the field and off) -- and shows how you can use this mindset to make the right moves in your own life.

Everyone experiences loss, but how do you cope with the tough moments that follow? Resilience researcher Lucy Hone shares three hard-won strategies for developing the capacity to brave adversity, overcome struggle and face whatever may come head-on with fortitude and grace.

Who are you? To answer this question, artist Shantell Martin followed her pen. In this brilliantly visual talk featuring her signature freestyle line work -- drawn across everything from the screens of Times Square to the bodies of New York City Ballet dancers -- Martin shares how she found freedom and a new perspective through art. See how drawing can connect your hand to your heart and deepen your connection with the world.

The digital platforms you and your family use every day -- from online games to education apps and medical portals -- may be collecting and selling your children's data, says anthropologist Veronica Barassi. Sharing her eye-opening research, Barassi urges parents to look twice at digital terms and conditions instead of blindly accepting them -- and to demand protections that ensure their kids' data doesn't skew their future.

After the devastating rebel invasion of Freetown in 1999 and the Ebola epidemic in 2014, Yvonne Aki-Sawyerr, mayor of the city, refused to be paralyzed by her frustration with the status quo. Instead, she used her anger as a catalyst for action. In this inspiring talk, she shares how she transformed her city by taking the risks necessary to bring about dramatic change -- and shows how you can find power in your dissatisfaction.

There is no such thing as being "not racist," says author and historian Ibram X. Kendi. In this vital conversation, he defines the transformative concept of antiracism to help us more clearly recognize, take responsibility for and reject prejudices in our public policies, workplaces and personal beliefs. Learn how you can actively use this awareness to uproot injustice and inequality in the world -- and replace it with love. (This virtual interview, hosted by TED's current affairs curator Whitney Pennington Rodgers and speaker development curator Cloe Shasha, was recorded June 9, 2020.)

Nigel Topping has a cool job: he's the UK's High Level Climate Action Champion for COP26, the UN's climate change conference taking place in 2021. In this wide-ranging interview, Topping discusses his work with scientists, businesses and cities to drive action on climate change and get the world committed to net zero emissions by 2050. He also explains why he thinks the COVID-19 pandemic could accelerate the transition to a green economy, creating jobs that will last and building a cleaner world for us all. (This virtual conversation, hosted by TED global curator Bruno Giussani and current affairs curator Whitney Pennington Rodgers, was recorded May 26, 2020.)

Flags are one of the simplest yet most powerful pieces of design ever conceived. They can make us swell with pride, burn with hatred -- and even inspire people to die or kill in their name, says vexillologist Michael Green. Take a brief walk through history as Green explores the symbolic fervor behind flags that unify and divide, inviting us to imagine a future where we can come together under one collective identity: humanity.

"We need to defund the budgets of police departments. It's the only way we're going to take power back," says Anthony D. Romero, executive director of the American Civil Liberties Union (ACLU). Calling for allies to get involved in the efforts to dismantle systemic racism, Romero explains why police reform isn't enough anymore -- and shows why it's time to take money from militarized law enforcement and reinvest it in the community. (This video, excerpted from a panel discussion featuring Dr. Phillip Atiba Goff, Rashad Robinson and Dr. Bernice King, was recorded June 3, 2020. Watch the full discussion at go.ted.com/endingracism)

To cultivate a society grounded in equity and love, we must uproot systems of oppression and violence towards Black communities, says Dr. Bernice Albertine King, community builder and daughter of Dr. Martin Luther King Jr. In a time of mourning and protest, King calls for a revolution of values, allies that engage and a world where anger is channeled into social and economic change. "Freedom is never really won. You earn it and win it in every generation," King says. "Every generation is called to this freedom struggle." (This video, excerpted from a panel featuring Dr. Phillip Atiba Goff, Rashad Robinson and Anthony D. Romero, was recorded June 3, 2020. Watch the full discussion at go.ted.com/endingracism)

The presence and visibility of a movement can often lead us to believe that progress is inevitable. But building power and changing the system requires more than conversations and retweets, says Rashad Robinson, the president of Color Of Change. To create material change in the racist systems that enable and perpetuate violence against Black communities, Robinson shares how we can translate the energy of global protests into specific demands, actions and laws -- and hold those in power accountable to them. "This is the time for White allies to stand up in new ways, to do the type of allyship that truly dismantles structures, not just provides charity," Robinson says. "You can't sing our songs, use our hashtags and march in our marches if you are on the other end supporting the structures that put us in harm's way, that literally kill us." (This video, excerpted from a panel featuring Dr. Phillip Atiba Goff, Dr. Bernice King and Anthony D. Romero, was recorded June 3, 2020. Watch the full discussion at go.ted.com/endingracism)

The bill has come due for the unpaid debts the United States owes its Black residents, says Dr. Phillip Atiba Goff, CEO of the Center for Policing Equity (CPE). But we're not going to get to where we need to go just by reforming law enforcement. In addition to the work that CPE is known for -- working with police departments to use their own data to improve relationships with the communities they serve -- Goff and his team are encouraging cities to take money from police budgets and instead invest it directly in public resources for the community. (This video, excerpted from a panel featuring Rashad Robinson, Dr. Bernice King and Anthony D. Romero, was recorded June 3, 2020. Watch the full discussion at go.ted.com/endingracism)

Marcelo Mena, the former environment minister of Chile, is on a mission to create a zero-emission economy in his country by 2050. In a conversation about climate action, he discusses how the COVID-19 pandemic is changing Chile's ambitious plan to tackle climate change -- and explains why the green recovery needs to be powered by both political leaders and citizens alike. (This virtual conversation, hosted by TED current affairs curator Whitney Pennington Rodgers and global curator Bruno Giussani, was recorded on May 26, 2020.)

No matter your industry, you've experienced drama at work. In this funny and all-too-relatable talk, community leader Anastasia Penright outlines five steps you can follow to better coexist with your coworkers and focus on what's really important.

In a time of mourning and anger over the ongoing violence inflicted on Black communities by police in the US and the lack of accountability from national leadership, what is the path forward? Sharing urgent insights into this historic moment, Dr. Phillip Atiba Goff, Rashad Robinson, Dr. Bernice King and Anthony D. Romero discuss dismantling the systems of oppression and racism responsible for tragedies like the murders of Ahmaud Arbery, Breonna Taylor, George Floyd and far too many others -- and explore how the US can start to live up to its ideals. (This discussion, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers, was recorded on June 3, 2020.)

Karen DeSalvo, the chief health officer at Google, explains the partnership between big tech and public health in slowing the spread of COVID-19 -- and discusses a new contact tracing technology recently rolled out by Google and Apple that aims to ease the burden on health workers and provide scientists critical time to create a vaccine. (This virtual conversation, hosted by current affairs curator Whitney Pennington Rodgers and head of TED Chris Anderson, was recorded on May 27, 2020.)

For the poor and vulnerable, the health impacts of climate change are already here, says physician Cheryl Holder. Unseasonably hot temperatures, disease-carrying mosquitoes and climate gentrification threaten those with existing health conditions, while wealthier people move to higher ground. In an impassioned talk, Holder proposes impactful ways clinicians can protect their patients from climate-related health challenges -- and calls on doctors, politicians and others to build a care system that incorporates economic and social justice.

Contact tracing -- the process of identifying people who may have been exposed to the coronavirus in order to slow its spread -- is a fundamental tool in the fight against COVID-19. How can we scale this critical work across the entire United States? Joia Mukherjee, chief medical officer of Partners in Health, discusses how her team is working with public health agencies to ramp up contact tracing for the country's most vulnerable communities -- and shows why it will take a compassionate approach to be truly effective. (This ambitious plan is part of The Audacious Project, TED's initiative to inspire and fund global change. The conversation, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers, was recorded May 27, 2020.)

What makes you speak up -- or not -- when you see something you know is wrong? Memory scientist Julia Shaw explains the psychology of those who witness workplace discrimination and harassment -- and shares actionable steps companies can take to support and amplify their voices.

Giving up control of your finances -- voluntarily or otherwise -- can leave you powerless and, in some cases, confined to a cycle of abuse. In this personal talk, accountant Estelle Gibson shares her own story of recovering from financial dependence and provides actionable advice to empower others who desire the freedom that comes with being responsible for your own money.

Capitalism needs an upgrade, says PayPal CEO Dan Schulman, and it starts with paying people enough to actually invest in their futures. He discusses why companies need to cultivate trust to recover and rebuild after the COVID-19 pandemic -- and how we can use this defining moment to create a more inclusive, ethical economy. (This virtual conversation, hosted by TED business curator Corey Hajim and current affairs curator Whitney Pennington Rodgers, was recorded on May 19, 2020.)

A mysterious tattoo on her forearm was all that linked Sara Jones, adopted as a child by white parents, to her South Korean origins. Searching for her birth family taught her that transracial adoption stories often frame new lives abroad as strokes of luck that call for endless gratitude, obscuring a far more complex reality. Through her experience of loss and discovery, Jones offers guidance on what adoptive parents can do to protect their children's unique cultural and personal narratives.

As you age, you gradually lose the ability to refocus your eyes -- a phenomenon as old as humanity itself -- leading to a reliance on bifocals, contacts and procedures like LASIK surgery. Electrical engineer Nitish Padmanaban offers a glimpse of cutting-edge tech that's truly a sight for sore eyes: dynamic, autofocusing lenses that track your sight and adjust to what you see, both near and far.

Growing up means facing new challenges -- but for some kids, uncertain situations lead to anxiety that parents often seek to soothe. Psychologist Anne Marie Albano explains how constantly rushing to fix a child's problems can perpetuate a lifelong cycle of dependence and resentment -- and shares why a healthy dose of risk helps kids cultivate lasting confidence.

The coronavirus pandemic won't be the last crisis to test public health systems worldwide, says physician and health policy leader Georges C. Benjamin. He details what's needed to lead us out of the pandemic and prevent future ones -- including a robust governmental health entity equipped with updated technology and well-trained staff -- and explains how citizens, businesses and political leaders can do their part to put public health first. (This virtual conversation, hosted by science curator David Biello and head of TED Chris Anderson, was recorded on May 20, 2020.)

How can we return to work without spurring a second surge of coronavirus infection? Biologist Uri Alon shares a thought-provoking strategy: four days at work followed by 10 days of lockdown, a cycle that would exploit a weakness in the virus's biology and potentially cut its reproductive rate to a manageable level. Learn more about this approach -- which has already been adopted by both companies and countries -- and how it could be a key to reopening the economy responsibly. (This virtual conversation, hosted by head of TED Chris Anderson and science curator David Biello, was recorded on May 20, 2020.)

Earth, humanity and nature are inextricably interconnected. To restore us all back to health, we need to "rewild" the world, says environmental activist Kristine Tompkins. Tracing her life from Patagonia CEO to passionate conservationist, she shares how she has helped to establish national parks across millions of acres of land (and sea) in South America -- and discusses the critical role we all have to play to heal the planet. "We have a common destiny," she says. "We can flourish or we can suffer, but we're going to be doing it together."

Veterans in the United States take their own lives at an alarming rate. Suggesting new ways to prioritize mental health in the military, veterans advocate Charles P. Smith offers a data-driven plan to help prevent suicide and ensure service members get proper care before, during and after active duty.

By incorporating art and creativity into elder care settings, gerontologist Anne Basting helps families reconnect with loved ones who have dementia. In this moving talk, she shares how asking "beautiful questions" -- questions that don't have a right or wrong answer -- opens up a shared path of discovery, imagination and wonder. "If we can infuse creativity into care, caregivers can invite a partner into meaning-making," Basting says. "In that moment, care, which is so often associated with loss, can become generative."

The ocean plays host to a peculiar party of wild, marine sex life that's perhaps quirkier (and kinkier) than you can fathom. But is human behavior interrupting these raunchy reproductive acts? Take a deep dive with marine biologist Marah J. Hardt to discover what exactly goes down under the sea -- and why your own wellness depends on the healthy sex lives of fish.

The coronavirus pandemic shattered the global economy. To put the pieces back together, we need to make sure money is going to the countries that need it the most -- and that we rebuild financial systems that are resilient to shocks, says Kristalina Georgieva, managing director of the International Monetary Fund. She takes us inside the massive economic stimulus efforts leading the world toward recovery and renewal and discusses what it will take for countries to emerge from this "great transformation" even stronger than before. (This virtual conversation, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers, was recorded on May 18, 2020.)

Trauma and PTSD rewire your brain -- especially your memory -- and can unearth destructive emotional responses when stirred. Could we eliminate these triggers without erasing the memories themselves? Enter neurologist Amy Milton's mind-blowing, memory-editing clinical research poised to defuse the damaging effects of painful remembered experiences and offer a potential path toward better mental health.

When you stop comparing yourself to others, you can accomplish great things, says wheelchair athlete Dean Furness. He shares how, after losing the use of his legs in an accident, he discovered a powerful new mindset focused on redefining his "personal average" and getting better little by little.

You speak far more languages than you realize, says Poet Ali. In a profound talk, he reveals how the idea of "language" goes far beyond a lexicon of words, communicating universal experiences like love, laughter and loneliness -- and serving as a portal to cultures, feelings and thoughts that unite us all.

After seeing the conditions in which children were held at a detention center on the US-Mexico border, Sister Norma Pimentel established a humanitarian respite center in Texas where people can get clean clothing, a warm shower and a hot meal. In this powerful talk, Sister Pimentel discusses her lifelong work restoring human dignity at the border -- and calls on us all to put aside prejudice and lead with compassion.

How do doctors in the emergency room stay calm and focused amidst the chaos? Drawing on years of experience, ER doctor Darria Long shares a straightforward framework to help you take back control and feel less overwhelmed when life starts to get "crazy busy."

Nearly half a million people in the US are in jail right now without being convicted of a crime, simply because they can't come up with the money to pay cash bail. To try and fix this system, public defender and activist Robin Steinberg asked a straightforward question: What if we paid bail for them? In conversation with TED Radio Hour host Manoush Zomorodi, Steinberg shares how her nonprofit The Bail Project -- which uses a revolving fund to post bail for those who can't afford it -- is scaling up their efforts across the country and rolling out a new community-based model to fight mass incarceration. (This ambitious plan is part of the Audacious Project, TED's initiative to inspire and fund global change.)

School can be rife with stress, anxiety, panic attacks and even burnout -- but there's often no formal policy for students who need to prioritize their well-being. Hailey Hardcastle explains why schools should offer mental health days and allow students time to practice emotional hygiene without stigma. Follow along to learn how she and a team of fellow teens transformed their advocacy into law.

How can we stop the next pandemic before it starts? Disease researchers Pardis Sabeti and Christian Happi introduce Sentinel, an early warning system that detects and tracks viral threats in real time -- and could help stop them before they spread. Learn more about the cutting-edge technology that powers the system and how the Sentinel team is helping scientists and health workers during the coronavirus pandemic. (This ambitious plan is part of the Audacious Project, TED's initiative to inspire and fund global change.)

To combat COVID-19, countries have enforced city-wide shutdowns, stay-at-home orders and mask mandates -- but the reaction (and adherence) to these rules has differed markedly in the East and West. In conversation with TED's head of curation Helen Walters, writer and publisher Huang Hung sheds light on how Chinese and American cultural values shaped their responses to the outbreak -- and provides perspective on why everyone needs to come together to end the pandemic. (Recorded April 16, 2020)

Privacy isn't dead, but face surveillance technology might kill it, says civil rights advocate Kade Crockford. In an eye-opening talk, Kade outlines the startling reasons why this invasive technology -- powered by often-flawed facial recognition databases that track people without their knowledge -- poses unprecedented threats to your fundamental rights. Learn what can be done to ban government use before it's too late.

By some estimates, work-related stress drains the US economy of nearly 300 billion dollars a year -- and it can hurt your productivity and personal health too, says wellness advocate Rob Cooke. He shares some strategies to help put your mental, physical and emotional well-being back at the forefront.

Health care workers are under more stress than ever before. How can they protect their mental health while handling new and complex pressures? TED Fellow Laurel Braitman shows how writing and sharing personal stories helps physicians, nurses, medical students and other health professionals connect more meaningfully with themselves and others -- and make their emotional well-being a priority.

Before the coronavirus pandemic, bioengineer Jim Collins and his team combined the power of AI with synthetic biology in an effort to combat a different looming crisis: antibiotic-resistant superbugs. Collins explains how they pivoted their efforts to begin developing a series of tools and antiviral compounds to help fight COVID-19 -- and shares their plan to discover seven new classes of antibiotics over the next seven years. (This ambitious plan is part of The Audacious Project, TED's initiative to inspire and fund global change.)

What if we could harness the ocean's movement to protect coastal communities from rising sea levels? Designer and TED Fellow Skylar Tibbits shows how his lab is creating a dynamic, adaptable system of underwater structures that uses energy from ocean waves to accumulate sand and restore eroding shorelines -- working with the forces of nature to build rather than destroy.

Many countries have an active, centuries-old law that allows government agencies to take your things -- your house, your car, your business -- without ever convicting you of a crime. Law researcher Dick M. Carpenter II exposes how this practice of civil forfeiture threatens your rights and creates a huge monetary incentive for law enforcement to pocket your possessions -- and he lays out a path to end "policing for profit" once and for all.

Examining the facts and figures of the coronavirus outbreak, epidemiologist Larry Brilliant evaluates the global response in a candid interview with head of TED Chris Anderson. Brilliant lays out a clear plan to end the pandemic -- and shows why, to achieve it, we'll have to work together across political and geographical divides. "This is not the zombie apocalypse; this is not a mass extinction event," he says. "We need to be the best version of ourselves." (Recorded April 22, 2020)

When it comes to big life problems, we often stand at a crossroads: either believe we're powerless against great change, or we rise to meet the challenge. In an urgent call to action, political strategist Tom Rivett-Carnac makes the case for adopting a mindset of "stubborn optimism" to confront climate change -- or whatever crisis may come our way -- and sustain the action needed to build a regenerative future. As he puts it: "Stubborn optimism can fill our lives with meaning and purpose."

If you had to explain to a newborn what it means to be a human being living on Earth in the 21st century, what would you say? Visual artist Oliver Jeffers put his answer in a letter to his son, sharing pearls of wisdom on existence and the diversity of life. He offers observations of the "beautiful, fragile drama of human civilization" in this poetic talk paired with his original illustrations and animations.

Recounting her story of finding opportunity and stability in the US, Elizabeth Camarillo Gutierrez examines the flaws in narratives that simplify and idealize the immigrant experience -- and shares hard-earned wisdom on the best way to help those around us. "Our world is one that flourishes when different voices come together," she says.

How does your genetic inheritance, culture and history influence your health? Biological anthropologist Lara Durgavich discusses the field of evolutionary medicine as a gateway to understanding the quirks of human biology -- including why a genetic mutation can sometimes have beneficial effects -- and emphasizes how unraveling your own evolutionary past could glean insights into your current and future health.

When Shaka Senghor and Ebony Roberts ended their relationship, they made a pact to protect their son from its fallout. What resulted was a poetic meditation on what it means to raise a child together, yet apart. In this moving and deeply personal talk, Senghor and Roberts share their approach to co-parenting -- an equal, active partnership that rolls with the punches and revels in the delights of guiding their child through the world with thought and intention.

Racism makes our economy worse -- and not just in ways that harm people of color, says public policy expert Heather C. McGhee. From her research and travels across the US, McGhee shares startling insights into how racism fuels bad policymaking and drains our economic potential -- and offers a crucial rethink on what we can do to create a more prosperous nation for all. "Our fates are linked," she says. "It costs us so much to remain divided."

Curious how stuff works? Do a hands-on experiment at home, says physicist Nadya Mason. She shows how you can demystify the world around you by tapping into your scientific curiosity -- and performs a few onstage experiments of her own using magnets, dollar bills, dry ice and more.

Some biological structures are so small that scientists can't see them with even the most powerful microscopes. That's where molecular animator and TED Fellow Janet Iwasa gets creative. Explore vast, unseen molecular worlds as she shares mesmerizing animations that imagine how they might work.

Did you know that one of the most notorious poisons is also a key ingredient for life as we know it? Join space chemist Karin Öberg and learn how she scans the universe in search of this paradoxical chemical using ALMA, the world's largest radio telescope, to detect hotbeds of molecular activity and the formation of life-sustaining planets.

The coronavirus pandemic is more global, dramatic and unusual than any crisis we've seen in a long time, says journalist Fareed Zakaria. Listen as he shares his perspective on how we can recover from the economic fallout, why certain countries were able to avoid major outbreaks and what this might mean for the balance of global power. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers. Recorded April 9, 2020)

The coronavirus pandemic put India's population of 1.3 billion into an extreme and sudden lockdown. Social entrepreneur Gayathri Vasudevan explains how the situation is impacting the country's migrant workers, who are stuck far from home with limited access to food and shelter, and calls for an overhaul of India's social infrastructure in order to get people the essentials they need right now. (This virtual conversation is part of the TED Connects series, hosted by current affairs curator Whitney Pennington Rodgers. Recorded April 9, 2020)

"I'm a capitalist. I believe in the system. I believe you can increase the size of the pie and you could divide it well," says Ray Dalio, founder of Bridgewater Associates. He offers wide-ranging insight and advice on how we might recover from the global economic fallout of the coronavirus crisis -- and use it as an opportunity to reform the systems that help grow our economy. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and business curator Corey Hajim. Recorded April 8, 2020)

Looking to put your skills to use to fight the pandemic? Consider joining The Global Hack, a virtual hackathon designed to rapidly develop solutions to the coronavirus crisis. Designer and technologist Marko Russiver shares the motivation behind a movement looking to help people build post-pandemic resilience. (This virtual conversation is part of the TED Connects series, hosted by head of curation Helen Walters. Recorded April 8, 2020)

To understand what makes marriages work, we need to talk about why they sometimes end, says family law professor Jeannie Suk Gersen. Follow along as she lays out three ways that thinking about marital decisions through the lens of divorce can help you better navigate togetherness from the beginning.

The coronavirus pandemic is unlike anything we've ever seen in health care, says emergency physician Esther Choo. Sharing insights into how health workers are responding to the outbreak, she explains what makes this public health emergency different from others -- and provides a few simple things you can do to help. Watch to the end to hear about Choo's work deploying mobile ICUs across the United States as hospitals start to reach capacity. (This virtual conversation is part of the TED Connects series, hosted by current affairs curator Whitney Pennington Rodgers and head of curation Helen Walters. Recorded April 7, 2020)

Indigenous languages across North America are under threat of extinction due to the colonial legacy of cultural erasure, says linguist Lindsay Morcom. Highlighting grassroots strategies developed by the Anishinaabe people of Canada to revive their language and community, Morcom makes a passionate case for enacting policies that could protect Indigenous heritage for generations to come.

As COVID-19 continues to spread, the world is facing two existential threats at once: a public health emergency and an economic crisis. Political theorist Danielle Allen describes how we can ethically and democratically address both problems by scaling up "smart testing," which would track positive cases with peer-to-peer software on people's cell phones -- so we can end the pandemic and get back to work. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and business curator Corey Hajim. Recorded April 6, 2020)

There's a simple and powerful way to confront the world's most pressing crises, says women's rights activist Yifat Susskind: think like a mother. As she puts it: "When you think like a mother, you prioritize the needs of the many, not the whims of the few." Follow along as she shares moving stories of people around the world who embody this mindset -- and shows how it can also help you see beyond suffering and act to build a better world.

More barriers exist now than at the end of World War II, says designer Alexandra Auer. And when you erect one wall, you unwittingly create a second -- an "us" versus "them" partition in the mind that compromises our collective safety. With intriguing results from her social design project focused on two elementary schools separated by a fence, Auer encourages us to dismantle our biases and regain perspective on all the things we have in common.

If you're feeling anxious or fearful during the coronavirus pandemic, you're not alone. Offering hope and understanding, author Elizabeth Gilbert reflects on how to stay present, accept grief when it comes and trust in the strength of the human spirit. "Resilience is our shared genetic inheritance," she says. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and head of curation Helen Walters. Recorded April 2, 2020)

"Autism is not a disease; it's just another way of thinking," says Ethan Lisi. Offering a glimpse into the way he experiences the world, Lisi breaks down misleading stereotypes about autism, shares insights into common behaviors like stimming and masking and promotes a more inclusive understanding of the spectrum.

A good night's sleep has perhaps never been more important. Sharing wisdom and debunking myths, sleep scientist Matt Walker discusses the impact of sleep on mind and body -- from unleashing your creative powers to boosting your memory and immune health -- and details practices you can start (and stop) doing tonight to get some rest. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers. Recorded April 1, 2020)

What can past pandemics teach us how to tackle the current one? Tracing the history of contagions from cholera to Ebola and beyond, science journalist Sonia Shah explains why we're more vulnerable to outbreaks now than ever before, what we can do to minimize the spread of coronavirus and how to prevent future pandemics. (This virtual conversation is part of the TED Connects series, hosted by science curator David Biello and current affairs curator Whitney Pennington Rodgers. Recorded March 31, 2020)

Monarch butterflies are dying at an alarming rate around the world -- a looming extinction that could also put human life at risk. But we have just the thing to help save these insects, says author Mary Ellen Hannibal: citizen scientists. Learn how these grassroots volunteers are playing a crucial role in measuring and rescuing the monarch's dwindling population -- and how you could join their ranks to help protect nature. (You'll be in good company: Charles Darwin was a citizen scientist!)

Rabbi Lord Jonathan Sacks offers thoughts on how we can navigate the coronavirus pandemic with courage, hope and empathy. With wisdom and clarity, he speaks on leadership, fear, death, hope and how we could use this moment to build a more just world. Watch for a special, impromptu prayer about halfway through the conversation. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and head of curation Helen Walters. Recorded March 30, 2020)

Pardons, commutations and bankruptcy laws are all tools of forgiveness within the US legal system. Are we using them frequently enough, and with fairness? Law professor Martha Minow outlines how these merciful measures can reinforce racial and economic inequality -- and makes the case for creating a system of restorative justice that focuses on accountability and reconciliation rather than punishment.

Author Priya Parker shares tools for creating meaningful connections with friends, family and coworkers during the coronavirus pandemic -- and shows how we can take advantage of gatherings that are unique to this moment of social distancing. "We don't necessarily need to gather more," she says. "We need to gather better." (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers. Recorded March 27, 2020)

From Hong Kong, South China Morning Post CEO Gary Liu tracks China's response to the coronavirus pandemic -- from the initial outbreak in Wuhan to the shutdown of Hubei province and the containment measures taken across its major cities. Sharing insights into how the culture in places like Hong Kong and South Korea contributed to fast action against the virus, Liu identifies lessons people across the world can use to stop its spread. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers. Recorded March 25, 2020)

When will the coronavirus vaccine be ready? Epidemiologist Seth Berkley (head of Gavi, the Vaccine Alliance) takes us inside the effort to create a vaccine for COVID-19. With clarity and urgency, he explains what makes it so challenging to develop, when we can expect it to be rolled out at scale and why we'll need global collaboration to get it done. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers. Recorded March 26, 2020)

To tackle a problem as large as climate change, we need both science and Indigenous wisdom, says environmental activist Hindou Oumarou Ibrahim. In this engaging talk, she shares how her nomadic community in Chad is working closely with scientists to restore endangered ecosystems -- and offers lessons on how to create more resilient communities.

What's your passion? Social entrepreneur Noeline Kirabo reflects on her work helping out-of-school young people in Uganda turn their passions into profitable businesses -- and shares the two questions you can ask yourself to begin doing the same.

Philanthropist and Microsoft cofounder Bill Gates offers insights into the COVID-19 pandemic, discussing why testing and self-isolation are essential, which medical advancements show promise and what it will take for the world to endure this crisis. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers. Recorded March 24, 2020)

The world is more connected than ever, but some communities are still cut off from vital resources like electricity and health care. In this solution-oriented talk, activist Johanna Figueira discusses her work with Code for Venezuela -- a platform that gathers technologists to address Venezuela's needs for information and medical supplies -- and shares ideas for how it could be used as a model to help other communities in need.

"Life's beauty is inseparable from its fragility," says psychologist Susan David. In a special virtual conversation, she shares wisdom on how to build resilience, courage and joy in the midst of the coronavirus pandemic. Responding to listeners' questions from across the globe, she offers ways to talk to your children about their emotions, keep focus during the crisis and help those working on the front lines. (This virtual conversation is part of the TED Connects series, hosted by head of TED Chris Anderson and current affairs curator Whitney Pennington Rodgers. Recorded March 23, 2020)

To work safely, self-driving cars must avoid obstacles -- including those just out of sight. And for this to happen, we need technology that sees better than humans can, says electrical engineer David Lindell. Buckle up for a quick, groundbreaking tech demo as Lindell explains the significant and versatile potential of a high-speed camera that can detect objects hidden around corners.

The common thinking on biological sex goes like this: females have two X chromosomes in their cells, while males have one X and one Y. In this myth-busting talk, science writer and podcaster Molly Webster shows why the so-called "sex chromosomes" are more complicated than this simple definition -- and reveals why we should think about them differently.