Every day, we use materials from the earth without thinking, for free. But what if we had to pay for their true value: would it make us more careful about what we use and what we waste? Think of Pavan Sukhdev as nature's banker -- assessing the value of the Earth's assets. Eye-opening charts will make you think differently about the cost of air,...

Juan Enriquez challenges our definition of bioenergy. Oil, coal, gas and other hydrocarbons are not chemical but biological products, based on plant matter -- and thus, growable. Our whole approach to fuel, he argues, needs to change.

When Dave deBronkart learned he had a rare and terminal cancer, he turned to a group of fellow patients online -- and found the medical treatment that saved his life. Now he calls on all patients to talk with one another, know their own health data, and make health care better one e-Patient at a time.

Steve Keil fights the "serious meme" that has infected his home of Bulgaria -- and calls for a return to play to revitalize the economy, education and society. A sparkling talk with a universal message for people everywhere who are reinventing their workplaces, schools, lives.

Why is it so hard to find female superhero merchandise? In this passionate, sparkling talk, media studies scholar (and father of a Star Wars-obsessed daughter) Christopher Bell addresses the alarming lack of female superheroes in the toys and products marketed to kids -- and what it means for how we teach them about the world.

Eric Topol says we'll soon use our smartphones to monitor our vital signs and chronic conditions. At TEDMED, he highlights several of the most important wireless devices in medicine's future -- all helping to keep more of us out of hospital beds.

How can we harness the power of superintelligent AI while also preventing the catastrophe of robotic takeover? As we move closer toward creating all-knowing machines, AI pioneer Stuart Russell is working on something a bit different: robots with uncertainty. Hear his vision for human-compatible AI that can solve problems using common sense, altr...

Black history taught in US schools is often watered-down, riddled with inaccuracies and stripped of its context and rich, full-bodied historical figures. Equipped with the real story of Rosa Parks, professor David Ikard highlights how making the realities of race more benign and digestible harms us all -- and emphasizes the power and importance ...

Why do we make poor decisions that we know are bad for our health? In this frank, funny talk, behavioral economist and health policy expert David Asch explains why our behavior is often irrational -- in highly predictable ways -- and shows how we can harness this irrationality to make better decisions and improve our health care system overall.

Behind the everyday bargains we all love -- the $10 manicure, the unlimited shrimp buffet -- is a hidden world of forced labor to keep those prices at rock bottom. Noy Thrupkaew investigates human trafficking – which flourishes in the US and Europe, as well as developing countries – and shows us the human faces behind the exploited labor that fe...

Why do societies fail? With lessons from the Norse of Iron Age Greenland, deforested Easter Island and present-day Montana, Jared Diamond talks about the signs that collapse is near, and how -- if we see it in time -- we can prevent it.

Our society is in the midst of a social crisis, says op-ed columnist and author David Brooks: we're trapped in a valley of isolation and fragmentation. How do we find our way out? Based on his travels across the United States -- and his meetings with a range of exceptional people known as "weavers" -- Brooks lays out his vision for a cultural re...

Human growth has strained the earth's resources, but as Johan Rockström reminds us, our advances also give us the science to recognize this and change behavior. His research has found nine "planetary boundaries" that can guide us in protecting our planet's many overlapping ecosystems.

How do fast-paced video games affect the brain? Step into the lab with cognitive researcher Daphne Bavelier to hear surprising news about how video games, even action-packed shooter games, can help us learn, focus and, fascinatingly, multitask.

Our lives, our cultures, are composed of many overlapping stories. Novelist Chimamanda Adichie tells the story of how she found her authentic cultural voice -- and warns that if we hear only a single story about another person or country, we risk a critical misunderstanding.

Why are humans so slow to react to looming crises, like a forewarned pandemic or a warming planet? It's because we're reluctant to rethink, say organizational psychologist Adam Grant. From a near-disastrous hike on Panama's highest mountain to courageously joining his high school's diving team, Grant borrows examples from his own life to illustr...

We've known about global warming for 50 years and done little about it, says Google.org director Larry Brilliant. In spite of this and other depressing trends, he's optimistic and tells us why. From Skoll World Forum, Oxford, UK, www.skollfoundation.org

Does it seem like Washington has no new ideas? Instead of looking to build the future, it sometimes feels like the US political establishment happily retreats into fear and willful ignorance. Journalist David Rothkopf lays out a few of the major issues that US leadership is failing to address -- from cybercrime to world-shaking new tech to the r...

When faced with life's toughest circumstances, how should we respond: as an optimist, a realist or something else? In an unforgettable talk, explorer Mark Pollock and human rights lawyer Simone George explore the tension between acceptance and hope in times of grief -- and share the groundbreaking work they're undertaking to cure paralysis.

How do you effectively regulate stress? Therapist Esther Perel discusses the importance of creating routines, rituals and boundaries to deal with pandemic-related loss and uncertainty -- both at home and at work -- and offers some practical tools and techniques to help you regain your sense of self. (This conversation, hosted by TED's Helen Walt...

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 aga...

The treatment of HIV has significantly advanced over the past three decades -- why hasn't our perception of people with the disease advanced along with it? After being diagnosed with HIV, Arik Hartmann chose to live transparently, being open about his status, in an effort to educate people. In this candid, personal talk, he shares what it's like...

When humanity first landed on the moon in 1969, the typeface Futura was right there with them. In this fascinating history of typography, designer Douglas Thomas shares Futura's role in launching the Apollo 11 spacecraft -- and how it became one of the most used fonts in the world.

Music has the power to transform moods, unite crowds and topple governments. However, as neuroscientist and operatic soprano Indre Viskontas points out, we know very little about how the brain turns strings of sounds into music. In a talk that explores art with science, she describes how her investigation into the brain's responses to music insp...

There's been an explosion of collaborative consumption -- web-powered sharing of cars, apartments, skills. Rachel Botsman explores the currency that makes systems like Airbnb and Taskrabbit work: trust, influence, and what she calls "reputation capital."

James Surowiecki pinpoints the moment when social media became an equal player in the world of news-gathering: the 2005 tsunami, when YouTube video, blogs, IMs and txts carried the news -- and preserved moving personal stories from the tragedy.

For the nearly 20 million Americans with a felony record, punishment doesn't end after their prison sentence. Sociologist Reuben Jonathan Miller sheds light on the aftershocks of mass incarceration through the stories of people who've lived it, left it and still have to grapple with punishing policies after their release. A challenge to rethink ...

What if we could diagnose some of the world's deadliest diseases by the smells our bodies give off? In a fascinating talk and live demo, biologist James Logan introduces Freya, a malaria-sniffing dog, to show how we can harness the awesome powers of animal scent to detect chemical signatures associated with infection -- and change the way we dia...

This talk paints the funny and touching story of a little boy who pursued a simple passion: to draw and write stories. With the help of a supporting cast of family and teachers, Jarrett J. Krosoczka tells how he grew up to create beloved children's books.

Hanna Rosin reviews startling new data that shows women actually surpassing men in several important measures, such as college graduation rates. Do these trends, both US-centric and global, signal the "end of men"? Probably not -- but they point toward an important societal shift worth deep discussion.