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Jill Bolte Taylor's stroke of insight

Jill Bolte Taylor got a research opportunity few brain scientists would wish for: She had a massive stroke, and watched as her brain functions -- motion, speech, self-awareness -- shut down one by one. An astonishing story.

My escape from North Korea

As a child growing up in North Korea, Hyeonseo Lee thought her country was “the best on the planet.” It wasn't until the famine of the 90s that she began to wonder. She escaped the country at 14, to begin a life in hiding, as a refugee in China. Hers is a harrowing, personal tale of survival and hope -- and a powerful reminder of those who face constant danger,

Matthieu Ricard on the habits of happiness

What is happiness, and how can we all get some? Biochemist turned Buddhist monk Matthieu Ricard says we can train our minds in habits of well-being, to generate a true sense of serenity and fulfillment.

The psychology of evil

Philip Zimbardo knows how easy it is for nice people to turn bad. In this talk, he shares insights and graphic unseen photos from the Abu Ghraib trials. Then he talks about the flip side: how easy it is to be a hero, and how we can rise to the challenge.

6 ways mushrooms can save the world

Mycologist Paul Stamets lists 6 ways the mycelium fungus can help save the universe: cleaning polluted soil, making insecticides, treating smallpox and even flu ... Read more.

Why domestic violence victims don't leave

Leslie Morgan Steiner was in “crazy love” -- that is, madly in love with a man who routinely abused her and threatened her life. Steiner tells the dark story of her relationship, correcting misconceptions many people hold about victims of domestic violence, and explaining how we can all help break the silence. (Filmed at TEDxRainier.)

Which country does the most good for the world?

It's an unexpected side effect of globalization: problems that once would have stayed local—say, a bank lending out too much money—now have consequences worldwide. But still, countries operate independently, as if alone on the planet. Policy advisor Simon Anholt has dreamed up an unusual scale to get governments thinking outwardly: The Good Country Index. In a

Lessons from death row inmates

What happens before a murder? In looking for ways to reduce death penalty cases, David R. Dow realized that a surprising number of death row inmates had similar biographies. In this talk he proposes a bold plan, one that prevents murders in the first place. (Filmed at TEDxAustin.)

Stats that reshape your worldview

You've never seen data presented like this. With the drama and urgency of a sportscaster, statistics guru Hans Rosling debunks myths about the so-called "developing world."

Beware online "filter bubbles"

As web companies strive to tailor their services (including news and search results) to our personal tastes, there's a dangerous unintended consequence: We get trapped in a "filter bubble" and don't get exposed to information that could challenge or broaden our worldview. Eli Pariser argues powerfully that this will ultimately prove to be bad for us and bad for

Gaming can make a better world

Games like World of Warcraft give players the means to save worlds, and incentive to learn the habits of heroes. What if we could harness this gamer power to solve real-world problems? Jane McGonigal says we can, and explains how.

Dan Ariely asks, Are we in control of our own decisions?

Behavioral economist Dan Ariely, the author of Predictably Irrational, uses classic visual illusions and his own counterintuitive (and sometimes shocking) research findings to show how we're not as rational as we think when we make decisions.

Hans Rosling on global population growth

The world's population will grow to 9 billion over the next 50 years -- and only by raising the living standards of the poorest can we check population growth. This is the paradoxical answer that Hans Rosling unveils at TED@Cannes using colorful new data display technology (you'll see).

We need to talk about an injustice

In an engaging and personal talk -- with cameo appearances from his grandmother and Rosa Parks -- human rights lawyer Bryan Stevenson shares some hard truths about America's justice system, starting with a massive imbalance along racial lines: a third of the country's black male population has been incarcerated at some point in their lives. These issues, which are

The deadly genius of drug cartels

Up to 100,000 people died in drug-related violence in Mexico in the last 6 years. We might think this has nothing to do with us, but in fact we are all complicit, says Yale professor Rodrigo Canales in this unflinching talk that turns conventional wisdom about drug cartels on its head. The carnage is not about faceless, ignorant goons mindlessly killing each

Religions and babies

Hans Rosling had a question: Do some religions have a higher birth rate than others -- and how does this affect global population growth? Speaking at the TEDxSummit in Doha, Qatar, he graphs data over time and across religions. With his trademark humor and sharp insight, Hans reaches a surprising conclusion on world fertility rates.

Mihaly Csikszentmihalyi on flow

Mihaly Czikszentmihalyi asks, "What makes a life worth living?" Noting that money cannot make us happy, he looks to those who find pleasure and lasting satisfaction in activities that bring about a state of "flow."

How economic inequality harms societies

We feel instinctively that societies with huge income gaps are somehow going wrong. Richard Wilkinson charts the hard data on economic inequality, and shows what gets worse when rich and poor are too far apart: real effects on health, lifespan, even such basic values as trust.

The way we think about charity is dead wrong

Activist and fundraiser Dan Pallotta calls out the double standard that drives our broken relationship to charities. Too many nonprofits, he says, are rewarded for how little they spend -- not for what they get done. Instead of equating frugality with morality, he asks us to start rewarding charities for their big goals and big accomplishments (even if that

East vs. West -- the myths that mystify

Devdutt Pattanaik takes an eye-opening look at the myths of India and of the West -- and shows how these two fundamentally different sets of beliefs about God, death and heaven help us consistently misunderstand one another.

A call to men

At TEDWomen, Tony Porter makes a call to men everywhere: Don't "act like a man." Telling powerful stories from his own life, he shows how this mentality, drummed into so many men and boys, can lead men to disrespect, mistreat and abuse women and each other. His solution: Break free of the "man box."

The silent drama of photography

Economics PhD Sebastião Salgado only took up photography in his 30s, but the discipline became an obsession. His years-long projects beautifully capture the human side of a global story that all too often involves death, destruction or decay. Here, he tells a deeply personal story of the craft that nearly killed him, and shows breathtaking images from his

My daughter, Malala

Pakistani educator Ziauddin Yousafzai reminds the world of a simple truth that many don’t want to hear: Women and men deserve equal opportunities for education, autonomy, an independent identity. He tells stories from his own life and the life of his daughter, Malala, who was shot by the Taliban in 2012 simply for daring to go to school. "Why is my daughter so strong?

Who controls the world?

James Glattfelder studies complexity: how an interconnected system -- say, a swarm of birds -- is more than the sum of its parts. And complexity theory, it turns out, can reveal a lot about how the economy works. Glattfelder shares a groundbreaking study of how control flows through the global economy, and how concentration of power in the hands of a shockingly small

The surprising decline in violence

Steven Pinker charts the decline of violence from Biblical times to the present, and argues that, though it may seem illogical and even obscene, given Iraq and Darfur, we are living in the most peaceful time in our species' existence.

Teachers need real feedback

Until recently, many teachers only got one word of feedback a year: “satisfactory.” And with no feedback, no coaching, there’s just no way to improve. Bill Gates suggests that even great teachers can get better with smart feedback -- and lays out a program from his foundation to bring it to every classroom.

The danger of science denial

Vaccine-autism claims, "Frankenfood" bans, the herbal cure craze: All point to the public's growing fear (and, often, outright denial) of science and reason, says Michael Specter. He warns the trend spells disaster for human progress.

Want to help someone? Shut up and listen!

When most well-intentioned aid workers hear of a problem they think they can fix, they go to work. This, Ernesto Sirolli suggests, is naïve. In this funny and impassioned talk, he proposes that the first step is to listen to the people you're trying to help, and tap into their own entrepreneurial spirit. His advice on what works will help any entrepreneur.

New insights on poverty

Researcher Hans Rosling uses his cool data tools to show how countries are pulling themselves out of poverty. He demos Dollar Street, comparing households of varying income levels worldwide. Then he does something really amazing.

The walk from "no" to "yes"

William Ury, author of "Getting to Yes," offers an elegant, simple (but not easy) way to create agreement in even the most difficult situations -- from family conflict to, perhaps, the Middle East.

Life at 30,000 feet

Richard Branson talks to TED's Chris Anderson about the ups and the downs of his career, from his multibillionaire success to his multiple near-death experiences -- and reveals some of his (very surprising) motivations.

Learning from a barefoot movement

In Rajasthan, India, an extraordinary school teaches rural women and men -- many of them illiterate -- to become solar engineers, artisans, dentists and doctors in their own villages. It's called the Barefoot College, and its founder, Bunker Roy, explains how it works.

How the NSA betrayed the world's trust -- time to act

Recent events have highlighted, underlined and bolded the fact that the United States is performing blanket surveillance on any foreigner whose data passes through an American entity -- whether they are suspected of wrongdoing or not. This means that, essentially, every international user of the internet is being watched, says Mikko Hypponen. An important rant,

Why we need the explorers

In tough economic times, our exploratory science programs -- from space probes to the LHC -- are first to suffer budget cuts. Brian Cox explains how curiosity-driven science pays for itself, powering innovation and a profound appreciation of our existence.

Listen, learn ... then lead

Four-star general Stanley McChrystal shares what he learned about leadership over his decades in the military. How can you build a sense of shared purpose among people of many ages and skill sets? By listening and learning -- and addressing the possibility of failure.

John Hunter on the World Peace Game

John Hunter puts all the problems of the world on a 4'x5' plywood board -- and lets his 4th-graders solve them. At TED2011, he explains how his World Peace Game engages schoolkids, and why the complex lessons it teaches -- spontaneous, and always surprising -- go further than classroom lectures can.

Nandan Nilekani's ideas for India's future

Nandan Nilekani, the visionary co-founder of outsourcing pioneer Infosys, explains four brands of ideas that will determine whether India can continue its recent breakneck progress.

A Saudi woman who dared to drive

There's no actual law against women driving in Saudi Arabia. But it's forbidden. Two years ago, Manal al-Sharif decided to encourage women to drive by doing so -- and filming herself for YouTube. Hear her story of what happened next.

Dreams from endangered cultures

With stunning photos and stories, National Geographic Explorer Wade Davis celebrates the extraordinary diversity of the world's indigenous cultures, which are disappearing from the planet at an alarming rate.

Cradle to cradle design

Green-minded architect and designer William McDonough asks what our buildings and products would look like if designers took into account "all children, all species, for all time."

We the People, and the Republic we must reclaim

There is a corruption at the heart of American politics, caused by the dependence of Congressional candidates on funding from the tiniest percentage of citizens. That's the argument at the core of this blistering talk by legal scholar Lawrence Lessig. With rapid-fire visuals, he shows how the funding process weakens the Republic in the most fundamental way, and

Fighting with non-violence

How do you deal with a bully without becoming a thug? In this wise and soulful talk, peace activist Scilla Elworthy maps out the skills we need -- as nations and individuals -- to fight extreme force without using force in return. To answer the question of why and how non-violence works, she evokes historical heroes -- Aung San Suu Kyi, Mahatma Gandhi, Nelson Mandela

Why I chose a gun

Peter van Uhm is the Netherlands’ chief of defense, but that does not mean he is pro-war. At TEDxAmsterdam he explains how his career is one shaped by a love of peace, not a desire for bloodshed -- and why we need armies if we want peace.

Fighting viruses, defending the net

It's been 25 years since the first PC virus (Brain A) hit the net, and what was once an annoyance has become a sophisticated tool for crime and espionage. Computer security expert Mikko Hyppönen tells us how we can stop these new viruses from threatening the internet as we know it.

What we don't understand about trust

Trust is on the decline, and we need to rebuild it. That’s a commonly heard suggestion for making a better world … but, says philosopher Onora O’Neill, we don’t really understand what we're suggesting. She flips the question, showing us that our three most common ideas about trust are actually misdirected. (Filmed at TEDxHousesofParliament.)

Why I must speak out about climate change

Top climate scientist James Hansen tells the story of his involvement in the science of and debate over global climate change. In doing so he outlines the overwhelming evidence that change is happening and why that makes him deeply worried about the future.

The 6 killer apps of prosperity

Over the past few centuries, Western cultures have been very good at creating general prosperity for themselves. Historian Niall Ferguson asks: Why the West, and less so the rest? He suggests half a dozen big ideas from Western culture -- call them the 6 killer apps -- that promote wealth, stability and innovation. And in this new century, he says, these apps are all

Tales of passion

Author and activist Isabel Allende discusses women, creativity, the definition of feminism -- and, of course, passion -- in this talk.

How I named, shamed and jailed

Journalist Anas Aremeyaw Anas has broken dozens of stories of corruption and organized crime all over Ghana -- without ever revealing his identity. In this talk (in which his face remains hidden) Anas shows grisly footage from some of his investigations and demonstrates the importance of facing injustice.

The why and how of effective altruism

If you're lucky enough to live without want, it's a natural impulse to be altruistic to others. But, asks philosopher Peter Singer, what's the most effective way to give? He talks through some surprising thought experiments to help you balance emotion and practicality -- and make the biggest impact with whatever you can share. NOTE: Starting at 0:30, this talk

A plant's-eye view

What if human consciousness isn't the end-all and be-all of Darwinism? What if we are all just pawns in corn's clever strategy game to rule the Earth? Author Michael Pollan asks us to see the world from a plant's-eye view.

The good news on poverty (Yes, there's good news)

Human beings have been campaigning against inequality and poverty for 3,000 years. But this journey is accelerating. Bono "embraces his inner nerd" and shares inspiring data that shows the end of poverty is in sight … if we can harness the momentum.

The generation that's remaking China

Yang Lan, a journalist and entrepreneur who's been called "the Oprah of China," offers insight into the next generation of young Chinese citizens -- urban, connected (via microblogs) and alert to injustice.

What nonprofits can learn from Coca-Cola

At TEDxChange, Melinda Gates makes a provocative case for nonprofits taking a cue from corporations such as Coca-Cola, whose plugged-in, global network of marketers and distributors ensures that every remote village wants -- and can get -- a Coke. Why shouldn't this work for condoms, sanitation, vaccinations too?

A glimpse of life on the road

As a young girl, photojournalist and TED Fellow Kitra Cahana dreamed about running away from home to live freely on the road. Now as an adult and self-proclaimed vagabond, she follows modern nomads into their homes — boxcars, bus stops, parking lots, rest stop bathrooms — giving a glimpse into a culture on the margins.

New facts and stunning data visuals

Hans Rosling unveils new data visuals that untangle the complex risk factors of one of the world's deadliest (and most misunderstood) diseases: HIV. He argues that preventing transmissions -- not drug treatments -- is the key to ending the epidemic.

Parag Khanna maps the future of countries

Many people think the lines on the map no longer matter, but Parag Khanna says they do. Using maps of the past and present, he explains the root causes of border conflicts worldwide and proposes simple yet cunning solutions for each.

The music of a war child

For five years, young Emmanuel Jal fought as a child soldier in the Sudan. Rescued by an aid worker, he's become an international hip-hop star and an activist for kids in war zones. In words and lyrics, he tells the story of his amazing life.

What separates us from chimpanzees?

Jane Goodall hasn't found the missing link, but she's come closer than nearly anyone else. The primatologist says the only real difference between humans and chimps is our sophisticated language. She urges us to start using it to change the world.

Jennifer 8. Lee hunts for General Tso

Reporter Jennifer 8. Lee talks about her hunt for the origins of familiar Chinese-American dishes -- exploring the hidden spots where these two cultures have (so tastily) combined to form a new cuisine.

The doubt essential to faith

When Lesley Hazleton was writing a biography of Muhammad, she was struck by something: The night he received the revelation of the Koran, according to early accounts, his first reaction was doubt, awe, even fear. And yet this experience became the bedrock of his belief. Hazleton calls for a new appreciation of doubt and questioning as the foundation of faith --

A vision of crimes in the future

The world is becoming increasingly open, and that has implications both bright and dangerous. Marc Goodman paints a portrait of a grave future, in which technology's rapid development could allow crime to take a turn for the worse.

Averting the climate crisis

With the same humor and humanity he exuded in An Inconvenient Truth, Al Gore spells out 15 ways that individuals can address climate change immediately, from buying a hybrid to inventing a new, hotter "brand name" for global warming.

the Charter for Compassion

People want to be religious, says scholar Karen Armstrong; we should help make religion a force for harmony. She asks the TED community to help build a Charter for Compassion -- to restore the Golden Rule as the central global religious doctrine.

The voices of China's workers

In the ongoing debate about globalization, what's been missing is the voices of workers -- the millions of people who migrate to factories in China and other emerging countries to make goods sold all over the world. Reporter Leslie T. Chang sought out women who work in one of China's booming megacities, and tells their stories.

Time-lapse proof of extreme ice loss

Photographer James Balog shares new image sequences from the Extreme Ice Survey, a network of time-lapse cameras recording glaciers receding at an alarming rate, some of the most vivid evidence yet of climate change.

Let's talk crap. Seriously.

It's 2013, yet 2.5 billion people in the world have no access to a basic sanitary toilet. And when there's no loo, where do you poo? In the street, probably near your water and food sources -- causing untold death and disease from contamination. Get ready for a blunt, funny, powerful talk from journalist Rose George about a once-unmentionable problem.

Why the only future worth building includes everyone

A single individual is enough for hope to exist, and that individual can be you, says His Holiness Pope Francis in this searing TED Talk delivered directly from Vatican City. In a hopeful message to people of all faiths, to those who have power as well as those who don't, the spiritual leader provides illuminating commentary on the world as we currently find it and

Unlock the intelligence, passion, greatness of girls

Nobel Peace Prize winner Leymah Gbowee has two powerful stories to tell -- of her own life's transformation, and of the untapped potential of girls around the world. Can we transform the world by unlocking the greatness of girls?

One day of peace

Here's a crazy idea: Persuade the world to try living in peace for just one day, every September 21. In this energetic, honest talk, Jeremy Gilley tells the story of how this crazy idea became real -- real enough to help millions of kids in war-torn regions.

Mental health for all by involving all

Nearly 450 million people are affected by mental illness worldwide. In wealthy nations, just half receive appropriate care, but in developing countries, close to 90 percent go untreated because psychiatrists are in such short supply. Vikram Patel outlines a highly promising approach -- training members of communities to give mental health interventions, empowering

Meet global corruption's hidden players

When the son of the president of a desperately poor country starts buying mansions and sportscars on an official monthly salary of $7,000, Charmian Gooch suggests, corruption is probably somewhere in the picture. In a blistering, eye-opening talk (and through several specific examples), she details how global corruption trackers follow the money -- to some

The beauty of human skin in every color

Angélica Dass's photography challenges how we think about skin color and ethnic identity. In this personal talk, hear about the inspiration behind her portrait project, Humanæ, and her pursuit to document humanity's true colors rather than the untrue white, red, black and yellow associated with race.

A radical experiment in empathy

By leading the Americans in his audience at TEDxPSU step by step through the thought process, sociologist Sam Richards sets an extraordinary challenge: can they understand -- not approve of, but understand -- the motivations of an Iraqi insurgent? And by extension, can anyone truly understand and empathize with another?

Sugata Mitra shows how kids teach themselves

Speaking at LIFT 2007, Sugata Mitra talks about his Hole in the Wall project. Young kids in this project figured out how to use a PC on their own -- and then taught other kids. He asks, what else can children teach themselves?

Let the environment guide our development

Human growth has strained the Earth's resources, but as Johan Rockstrom 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.

Poverty, money -- and love

What do you think of people in poverty? Maybe what Jessica Jackley once did: "they" need "our" help, in the form of a few coins in a jar. The co-founder of Kiva.org talks about how her attitude changed -- and how her work with microloans has brought new power to people who live on a few dollars a day.

Dan Barber's foie gras parable

At the Taste3 conference, chef Dan Barber tells the story of a small farm in Spain that has found a humane way to produce foie gras. Raising his geese in a natural environment, farmer Eduardo Sousa embodies the kind of food production Barber believes in.

Peter Ward on Earth's mass extinctions

Asteroid strikes get all the coverage, but "Medea Hypothesis" author Peter Ward argues that most of Earth's mass extinctions were caused by lowly bacteria. The culprit, a poison called hydrogen sulfide, may have an interesting application in medicine.

How food shapes our cities

Every day, in a city the size of London, 30 million meals are served. But where does all the food come from? Architect Carolyn Steel discusses the daily miracle of feeding a city, and shows how ancient food routes shaped the modern world.

Rethinking America's military strategy

In this bracingly honest talk, international security strategist Thomas Barnett outlines a post-Cold War solution for the foundering U.S. military that is both sensible and breathtaking in its simplicity: Break it in two.

Making global labor fair

FLA head Auret van Heerden talks about the next frontier of workers' rights -- globalized industries where no single national body can keep workers safe and protected. How can we keep our global supply chains honest? Van Heerden makes the business case for fair labor.

Why the world needs charter cities

How can a struggling country break out of poverty if it's trapped in a system of bad rules? Economist Paul Romer unveils a bold idea: "charter cities," city-scale administrative zones governed by a coalition of nations. (Could Guantánamo Bay become the next Hong Kong?)

A new ecosystem for electric cars

Forget about the hybrid auto -- Shai Agassi says it's electric cars or bust if we want to impact emissions. His company, Better Place, has a radical plan to take entire countries oil-free by 2020.

The dangers of "willful blindness"

Gayla Benefield was just doing her job -- until she uncovered an awful secret about her hometown that meant its mortality rate was 80 times higher than anywhere else in the U.S. But when she tried to tell people about it, she learned an even more shocking truth: People didn’t want to know. In a talk that’s part history lesson, part call-to-action, Margaret

John Francis walks the Earth

For almost three decades, John Francis has been a planetwalker, traveling the globe by foot and sail with a message of environmental respect and responsibility (for 17 of those years without speaking). A funny, thoughtful talk with occasional banjo.

Sex, drugs and HIV -- let's get rational

Armed with bracing logic, wit and her "public-health nerd" glasses, Elizabeth Pisani reveals the myriad of inconsistencies in today's political systems that prevent our dollars from effectively fighting the spread of HIV. Her research with at-risk populations -- from junkies in prison to sex workers on the street in Cambodia -- demonstrates the sometimes counter-

Irwin Redlener on surviving a nuclear attack

The face of nuclear terror has changed since the Cold War, but disaster-medicine expert Irwin Redlener reminds us the threat is still real. He looks at some of history's farcical countermeasures and offers practical advice on how to survive an attack.

Hidden cameras that film injustice in the world’s most dangerous places

To see is to believe, says Oren Yakobovich — which is why he helps everyday people use hidden cameras to film dangerous situations of violence, political fraud and abuse. His organization, Videre, uncovers, verifies and publicizes human-rights abuses that the world needs to witness.

We can be Buddhas

In our hyperlinked world, we can know anything, anytime. And this mass enlightenment, says Buddhist scholar Bob Thurman, is our first step toward Buddha nature.

Philosophy in prison

Damon Horowitz teaches philosophy through the Prison University Project, bringing college-level classes to inmates of San Quentin State Prison. In this powerful short talk, he tells the story of an encounter with right and wrong that quickly gets personal.

Lewis Pugh's mind-shifting Everest swim

After he swam the North Pole, Lewis Pugh vowed never to take another cold-water dip. Then he heard of Lake Imja in the Himalayas, created by recent glacial melting, and Lake Pumori, a body of water at an altitude of 5300 m on Everest -- and so began a journey that would teach him a radical new way to approach swimming and think about climate change.

The invisible man

Can a person disappear in plain sight? That’s the question Liu Bolin‘s remarkable work seems to ask. The Beijing-based artist is sometimes called “The Invisible Man” because in nearly all his art, Bolin is front and center — and completely unseen. He aims to draw attention to social and political issues by dissolving into the background.

The workforce crisis of 2030 — and how to start solving it now

It sounds counterintuitive, but by 2030, many of the world's largest economies will have more jobs than adult citizens to do those jobs. In this data-filled — and quite charming — talk, human resources expert Rainer Strack suggests that countries ought to look across borders for mobile and willing job seekers. But to do that, they need to start by changing the culture

Chemical scum that dream of distant quasars

Legendary scientist David Deutsch puts theoretical physics on the back burner to discuss a more urgent matter: the survival of our species. The first step toward solving global warming, he says, is to admit that we have a problem.

Compassion and the true meaning of empathy

Buddhist roshi Joan Halifax works with people at the last stage of life (in hospice and on death row). She shares what she's learned about compassion in the face of death and dying, and a deep insight into the nature of empathy.

Why I believe the mistreatment of women is the number one human rights abuse

With his signature resolve, former US President Jimmy Carter dives into three unexpected reasons why the mistreatment of women and girls continues in so many manifestations in so many parts of the world, both developed and developing. The final reason he gives? “In general, men don’t give a damn.”

2600 years of history in one object

A clay cylinder covered in Akkadian cuneiform script, damaged and broken, the Cyrus Cylinder is a powerful symbol of religious tolerance and multi-culturalism. In this enthralling talk Neil MacGregor, Director of the British Museum, traces 2600 years of Middle Eastern history through this single object.

How to restore a rainforest

By piecing together a complex ecological puzzle, biologist Willie Smits has found a way to re-grow clearcut rainforest in Borneo, saving local orangutans -- and creating a thrilling blueprint for restoring fragile ecosystems.

The global power shift

Paddy Ashdown claims that we are living in a moment in history where power is changing in ways it never has before. In a spellbinding talk at TEDxBrussels he outlines the three major global shifts that he sees coming.

Why eyewitnesses get it wrong

Scott Fraser studies how humans remember crimes -- and bear witness to them. In this powerful talk, which focuses on a deadly shooting at sunset, he suggests that even close-up eyewitnesses to a crime can create "memories" they could not have seen. Why? Because the brain abhors a vacuum.

Samantha Power on a complicated hero

Samantha Power tells a story of a complicated hero, Sergio Vieira de Mello. This UN diplomat walked a thin moral line, negotiating with the world's worst dictators to help their people survive crisis. It's a compelling story told with a fiery passion.

A realistic vision for world peace

Nobel Peace laureate Jody Williams brings tough love to the dream of world peace, with her razor-sharp take on what "peace" really means, and a set of profound stories that zero in on the creative struggle -- and sacrifice -- of those who work for it.

Let's go all-in on selling sustainability

The big blue buildings of Ikea have sprouted solar panels and wind turbines; inside, shelves are stocked with LED lighting and recycled cotton. Why? Because as Steve Howard puts it: “Sustainability has gone from a nice-to-do to a must-do.” Howard, the chief sustainability officer at the furniture megastore, talks about his quest to sell eco-friendly materials

Richard Baraniuk on open-source learning

Rice University professor Richard Baraniuk explains the vision behind Connexions, his open-source, online education system. It cuts out the textbook, allowing teachers to share and modify course materials freely, anywhere in the world.

How we can predict the next financial crisis

The 2007-2008 financial crisis, you might think, was an unpredictable one-time crash. But Didier Sornette and his Financial Crisis Observatory have plotted a set of early warning signs for unstable, growing systems, tracking the moment when any bubble is about to pop. (And he's seeing it happen again, right now.)

Bruce Bueno de Mesquita predicts Iran's future

Bruce Bueno de Mesquita uses mathematical analysis to predict (very often correctly) such messy human events as war, political power shifts, Intifada ... After a crisp explanation of how he does it, he offers three predictions on the future of Iran.

There are no scraps of men

Alberto Cairo's clinics in Afghanistan used to close down during active fighting. Now, they stay open. At TEDxRC2 (the RC stands for Red Cross/Red Crescent), Cairo tells the powerful story of why -- and how he found humanity and dignity in the midst of war.

A warrior’s cry against child marriage

Memory Banda’s life took a divergent path from her sister’s. When her sister reached puberty, she was sent to a traditional “initiation camp” that teaches girls “how to sexually please a man.” She got pregnant there — at age 11. Banda, however, refused to go. Instead, she organized others and asked her community’s leader to issue a bylaw that no girl should be forced

Joseph Nye on global power shifts

Historian and diplomat Joseph Nye gives us the 30,000-foot view of the shifts in power between China and the US, and the global implications as economic, political and "soft" power shifts and moves around the globe.

I was held hostage for 317 days. Here's what I thought about…

Vincent Cochetel was held hostage for 317 days in 1998, while working for the UN High Commissioner on Refugees in Chechnya. For the first time, he recounts the experience — from what it was like to live in a dark, underground chamber, chained to his bed, to the unexpected conversations he had with his captors. With lyricism and power, he explains why he continues his

We can recycle plastic

Less than 10% of plastic trash is recycled -- compared to almost 90% of metals -- because of the massively complicated problem of finding and sorting the different kinds. Frustrated by this waste, Mike Biddle has developed a cheap and incredibly energy efficient plant that can, and does, recycle any kind of plastic.

Tierney Thys swims with the giant sunfish

Marine biologist Tierney Thys asks us to step into the water to visit the world of the Mola mola, or giant ocean sunfish. Basking, eating jellyfish and getting massages, this behemoth offers clues to life in the open sea.

Dare to educate Afghan girls

Imagine a country where girls must sneak out to go to school, with deadly consequences if they get caught learning. This was Afghanistan under the Taliban, and traces of that danger remain today. 22-year-old Shabana Basij-Rasikh runs a school for girls in Afghanistan. She celebrates the power of a family's decision to believe in their daughters -- and tells the

Let’s help refugees thrive, not just survive

50 million people in the world today have been forcefully displaced from their home — a level not seen since WWII. Right now, more than 3 million Syrian refugees are seeking shelter in neighboring countries. In Lebanon, half of these refugees are children; only 20% are in school. Melissa Fleming of the UN's refugee agency calls on all of us to make sure that refugee

Hire the hackers!

Despite multibillion-dollar investments in cybersecurity, one of its root problems has been largely ignored: who are the people who write malicious code? Underworld investigator Misha Glenny profiles several convicted coders from around the world and reaches a startling conclusion.

The link between unemployment and terrorism

For the young and unemployed in the world's big cities, dreams of opportunity and wealth do come true -- but too often because they're heavily recruited by terrorist groups and other violent organizations. Human rights advocate Mohamed Ali draws on stories from his native Mogadishu to make a powerful case for innovation incubators for our cities' young and

The death of innovation, the end of growth

The US economy has been expanding wildly for two centuries. Are we witnessing the end of growth? Economist Robert Gordon lays out 4 reasons US growth may be slowing, detailing factors like epidemic debt and growing inequality, which could move the US into a period of stasis we can't innovate our way out of. Be sure to watch the opposing viewpoint from Erik

Adam Grosser and his sustainable fridge

Adam Grosser talks about a project to build a refrigerator that works without electricity -- to bring the vital tool to villages and clinics worldwide. Tweaking some old technology, he's come up with a system that works.

A global culture to fight extremism

Why do transnational extremist organizations succeed where democratic movements have a harder time taking hold? Maajid Nawaz, a former Islamist extremist, asks for new grassroots stories and global social activism to spread democracy in the face of nationalism and xenophobia. A powerful talk from TEDGlobal 2011.

Why public beheadings get millions of views

In a disturbing — but fascinating — walk through history, Frances Larson examines humanity's strange relationship with public executions … and specifically beheadings. As she shows us, they have always drawn a crowd, first in the public square and now on YouTube. What makes them horrific and compelling in equal measure?

The 3 agencies with the power to make or break economies

The way we rate national economies is all wrong, says rating agency reformer Annette Heuser. With mysterious and obscure methods, three private US-based credit rating agencies wield immense power over national economies across the globe, and the outcomes can be catastrophic. But what if there was another way? In this bold talk, Heuser shares her vision for a nonprofit

What if our healthcare system kept us healthy?

Rebecca Onie asks audacious questions: What if waiting rooms were a place to improve daily health care? What if doctors could prescribe food, housing and heat in the winter? At TEDMED she describes Health Leads, an organization that does just that -- and does it by building a volunteer base as elite and dedicated as a college sports team.

A conservative's plea: Let's work together

Conservatives and liberals both believe that they alone are motivated by love while their opponents are motivated by hate. How can we solve problems with so much polarization? In this talk, social scientist Arthur Brooks shares ideas for what we can each do as individuals to break the gridlock. "We might just be able to take the ghastly holy war of ideology that we're

the Web's secret stories

Jonathan Harris wants to make sense of the emotional world of the Web. With deep compassion for the human condition, his projects troll the Internet to find out what we're all feeling and looking for.

The antidote to apathy

Local politics -- schools, zoning, council elections -- hit us where we live. So why don't more of us actually get involved? Is it apathy? Dave Meslin says no. He identifies 7 barriers that keep us from taking part in our communities, even when we truly care.

Happiness in body and soul

Eve Ensler, creator of "The Vagina Monologues," shares how a discussion about menopause with her friends led to talking about all sorts of sexual acts onstage, waging a global campaign to end violence toward women and finding her own happiness.

The simple power of hand-washing

Myriam Sidibe is a warrior in the fight against childhood disease. Her weapon of choice? A bar of soap. For cost-effective prevention against sickness, it’s hard to beat soapy hand-washing, which cuts down risk of pneumonia, diarrhea, cholera and worse. Sidibe, a public-health expert, makes a smart case for public-private partnerships to promote clean hands — and

The world's killer diet

Stop wringing your hands over AIDS, cancer and the avian flu. Cardiovascular disease kills more people than everything else combined -- and it’s mostly preventable. Dr. Dean Ornish explains how changing our eating habits will save lives.

A call for open-source architecture

Accepting his 2006 TED Prize, Cameron Sinclair demonstrates how passionate designers and architects can respond to world housing crises. He unveils his TED Prize wish for a network to improve global living standards through collaborative design.

Andrew Mwenda takes a new look at Africa

In this provocative talk, journalist Andrew Mwenda asks us to reframe the "African question" -- to look beyond the media's stories of poverty, civil war and helplessness and see the opportunities for creating wealth and happiness throughout the continent.

What the Social Progress Index can reveal about your country

The term Gross Domestic Product is often talked about as if it were “handed down from god on tablets of stone.” But this concept was invented by an economist in the 1930s. We need a more effective measurement tool to match 21st century needs, says Michael Green: the Social Progress Index. With charm and wit, he shows how this tool measures societies across the three

The coming crisis in antibiotics

Antibiotic drugs save lives. But we simply use them too much — and often for non-lifesaving purposes, like treating the flu and even raising cheaper chickens. The result, says researcher Ramanan Laxminarayan, is that the drugs will stop working for everyone, as the bacteria they target grow more and more resistant. He calls on all of us (patients and doctors alike)

A Magna Carta for the web

Sir Tim Berners-Lee invented the World Wide Web 25 years ago. So it’s worth a listen when he warns us: There’s a battle ahead. Eroding net neutrality, filter bubbles and centralizing corporate control all threaten the web’s wide-open spaces. It’s up to users to fight for the right to access and openness. The question is, What kind of Internet do we want?

How Mr. Condom made Thailand a better place

At TEDxChange, Thailand's "Mr. Condom," Mechai Viravaidya, walks us through the country's bold plan to raise its standard of living, starting in the 1970s. First step: population control. And that means a lot of frank, funny -- and very effective -- talk about condoms.

John Doerr sees salvation and profit in greentech

"I don't think we're going to make it," John Doerr says in an emotional talk about climate change and investment. To create a world fit for his daughter to live in, he says, we need to invest now in clean, green energy.

The secret to effective nonviolent resistance

We're not going to end violence by telling people that it's morally wrong, says Jamila Raqib, executive director of the Albert Einstein Institution. Instead, we must find alternative ways to conduct conflict that are equally powerful and effective. Raqib promotes nonviolent resistance to people living under tyranny — and there's a lot more to it than street protests.

Dean Kamen previews a new prosthetic arm

Inventor Dean Kamen previews the prosthetic arm he’s developing at the request of the US Department of Defense. His quiet commitment to using technology to solve problems -- while honoring the human spirit -- has never been more clear.

Dive into an ocean photographer's world

Somersaulting manta rays, dashing dolphins, swarming schools of fish and munching sharks inhabit a world beneath the ocean's surface that few get a chance to see. Conservation photographer Thomas Peschak visits incredible seascapes around the world, and his photos reveal these hidden ecosystems. "You can't love something and become a champion for it if you don't know

Misha Glenny investigates global crime networks

Journalist Misha Glenny spent several years in a courageous investigation of organized crime networks worldwide, which have grown to an estimated 15% of the global economy. From the Russian mafia, to giant drug cartels, his sources include not just intelligence and law enforcement officials but criminal insiders.

The mothers who found forgiveness, friendship

Phyllis Rodriguez and Aicha el-Wafi have a powerful friendship born of unthinkable loss. Rodriguez' son was killed in the World Trade Center attacks on September 11, 2001; el-Wafi's son Zacarias Moussaoui was convicted of a role in those attacks and is serving a life sentence. In hoping to find peace, these two moms have come to understand and respect one another.

Let's revive the Golden Rule

Weeks from the Charter for Compassion launch, Karen Armstrong looks at religion's role in the 21st century: Will its dogmas divide us? Or will it unite us for common good? She reviews the catalysts that can drive the world's faiths to rediscover the Golden Rule.

New data on the rise of women

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.

Education innovation in the slums

Charles Leadbeater went looking for radical new forms of education -- and found them in the slums of Rio and Kibera, where some of the world's poorest kids are finding transformative new ways to learn. And this informal, disruptive new kind of school, he says, is what all schools need to become.

Eve Ensler on security

Playwright Eve Ensler explores our modern craving for security -- and why it makes us less secure. Listen for inspiring, heartbreaking stories of women making change.

Navigating our global future

As globalization and technological advances bring us hurtling towards a new integrated future, Ian Goldin warns that not all people may benefit equally. But, he says, if we can recognize this danger, we might yet realize the possibility of improved life for everyone.

New thinking on the climate crisis

In this brand-new slideshow (premiering on TED.com), Al Gore presents evidence that the pace of climate change may be even worse than scientists recently predicted. He challenges us to act.

Photos that bear witness to modern slavery

For the past two years, photographer Lisa Kristine has traveled the world, documenting the unbearably harsh realities of modern-day slavery. She shares hauntingly beautiful images -- miners in the Congo, brick layers in Nepal -- illuminating the plight of the 27 million souls enslaved worldwide. (Filmed at TEDxMaui)

Saving the ocean one island at a time

Aboard Mission Blue, scientist Greg Stone tells the story of how he helped the Republic of Kiribati create an enormous protected area in the middle of the Pacific -- protecting fish, sealife and the island nation itself.

Once Upon a School

Accepting his 2008 TED Prize, author Dave Eggers asks the TED community to personally, creatively engage with local public schools. With spellbinding eagerness, he talks about how his 826 Valencia tutoring center inspired others around the world to open

The 100,000-student classroom

In the fall of 2011 Peter Norvig taught a class with Sebastian Thrun on artificial intelligence at Stanford attended by 175 students in situ -- and over 100,000 via an interactive webcast. He shares what he learned about teaching to a global classroom.

The security mirage

The feeling of security and the reality of security don't always match, says computer-security expert Bruce Schneier. At TEDxPSU, he explains why we spend billions addressing news story risks, like the "security theater" now playing at your local airport, while neglecting more probable risks -- and how we can break this pattern.

George Ayittey on Cheetahs vs. Hippos

Ghanaian economist George Ayittey unleashes a torrent of controlled anger toward corrupt leaders in Africa -- and calls on the “Cheetah generation” to take back the continent.

Women entrepreneurs, example not exception

Women aren’t micro--so why do they only get micro-loans? At TEDxWomen reporter Gayle Tzemach Lemmon argues that women running all types of firms-- from home businesses to major factories-- are the overlooked key to economic development.

Ashraf Ghani on rebuilding broken states

Ashraf Ghani's passionate and powerful 10-minute talk, emphasizing the necessity of both economic investment and design ingenuity to rebuild broken states, is followed by a conversation with TED curator Chris Anderson on the future of Afghanistan.

Poems of war, peace, women, power

Poet Suheir Hammad performs two spine-tingling spoken-word pieces: "What I Will" and "break (clustered)" -- meditations on war and peace, on women and power. Wait for the astonishing line: "Do not fear what has blown up. If you must, fear the unexploded."

Stewart Brand proclaims 4 environmental 'heresies'

The man who helped usher in the environmental movement in the 1960s and '70s has been rethinking his positions on cities, nuclear power, genetic modification and geo-engineering. This talk at the US State Department is a foretaste of his major new book, sure to provoke widespread debate.

See Yemen through my eyes

As political turmoil in Yemen continues, the editor of the Yemen Times, Nadia Al-Sakkaf, talks at TEDGlobal with host Pat Mitchell. Al-Sakkaf's independent, English-language paper is vital for sharing news -- and for sharing a new vision of Yemen and of that country's women as equal partners in work and change.

Imagine a European democracy without borders

Greece has been the poster child for European economic crisis, but former Prime Minister George Papandreou wonders if it's just a preview of what's to come. “Our democracies," he says, "are trapped by systems that are too big to fail, or more accurately, too big to control” -- while "politicians like me have lost the trust of their peoples." How to solve it?

Want to help Africa? Do business here

We know the negative images of Africa -- famine and disease, conflict and corruption. But, says Ngozi Okonjo-Iweala, there's another, less-told story happening in many African nations: one of reform, economic growth and business opportunity.

Ann Cooper talks school lunches

Speaking at the 2007 EG conference, "renegade lunch lady" Ann Cooper talks about the coming revolution in the way kids eat at school -- local, sustainable, seasonal and even educational food.

How to reduce poverty? Fix homes

In 1985, architect Paul Pholeros was challenged by the director of an Aboriginal-controlled health service to "stop people getting sick" in a small indigenous community in south Australia. The key insights: think beyond medicine and fix the local environment. In this sparky, interactive talk, Pholeros describes projects undertaken by Healthabitat, the

A novel idea for cleaning up oil spills

When TED Senior Fellow Cesar Harada heard about the devastating effects of the BP Oil spill in the Gulf of Mexico in 2010, he quit his dream job and moved to New Orleans to develop a more efficient way to soak up the oil. He designed a highly maneuverable, flexible boat capable of cleaning large tracts quickly. But rather than turn a profit, he has opted to open-

The worldwide web of belief and ritual

Anthropologist Wade Davis muses on the worldwide web of belief and ritual that makes us human. He shares breathtaking photos and stories of the Elder Brothers, a group of Sierra Nevada indians whose spiritual practice holds the world in balance.

Ending hunger now

Josette Sheeran, the head of the UN's World Food Program, talks about why, in a world with enough food for everyone, people still go hungry, still die of starvation, still use food as a weapon of war. Her vision: "Food is one issue that cannot be solved person by person. We have to stand together."

A forgotten Space Age technology could change how we grow food

We're heading for a world population of 10 billion people — but what will we all eat? Lisa Dyson rediscovered an idea developed by NASA in the 1960s for deep-space travel, and it could be a key to reinventing how we grow food.

Tough truths about plastic pollution

Artist Dianna Cohen shares some tough truths about plastic pollution in the ocean and in our lives -- and some thoughts on how to free ourselves from the plastic gyre.

Haunting photos of polar ice

Photographer Camille Seaman shoots icebergs, showing the world the complex beauty of these massive, ancient chunks of ice. Dive in to her photo slideshow, "The Last Iceberg."

Art in exile

Iranian-born artist Shirin Neshat explores the paradox of being an artist in exile: a voice for her people, but unable to go home. In her work, she explores Iran pre- and post-Islamic Revolution, tracing political and societal change through powerful images of women.

Does democracy stifle economic growth?

Economist Yasheng Huang compares China to India, and asks how China's authoritarian rule contributed to its astonishing economic growth -- leading to a big question: Is democracy actually holding India back? Huang's answer may surprise you.

A test for Parkinson’s with a phone call

Parkinson’s disease affects 6.3 million people worldwide, causing weakness and tremors, but there's no objective way to detect it early on. Yet. Applied mathematician and TED Fellow Max Little is testing a simple, cheap tool that in trials is able to detect Parkinson's with 99 percent accuracy -- in a 30-second phone call.

David Keith's unusual climate change idea

Environmental scientist David Keith proposes a cheap, effective, shocking means to address climate change: What if we injected a huge cloud of ash into the atmosphere to deflect sunlight and heat?

The power of the informal economy

Robert Neuwirth spent four years among the chaotic stalls of street markets, talking to pushcart hawkers and gray marketers, to study the remarkable "System D," the world's unlicensed economic network. Responsible for some 1.8 billion jobs, it's an economy of underappreciated power and scope.

Action for Africa

Musician and activist Bono accepts the 2005 TED Prize with a riveting talk, arguing that aid to Africa isn't just another celebrity cause; it's a global emergency.

A civil response to violence

In this passionate talk from TEDxSanMigueldeAllende that's already caused a sensation in Mexico, Emiliano Salinas, son of former president Carlos Salinas de Gortari, confronts the current climate of violence in Mexico -- or rather, how Mexican society responds to it. He calls on ordinary citizens to move from denial and fear to peaceful, community-based action. This

Rick Smolan tells the story of a girl

Photographer Rick Smolan tells the unforgettable story of a young Amerasian girl, a fateful photograph, and an adoption saga with a twist.

Iran and Israel

Iran and Israel: two nations with tense relations that seem existentially at odds. But for all their antagonistic rhetoric, there is a recent hidden history of collaboration, even friendship. In an informative talk, Trita Parsi shows how an unlikely strategic alliance in the past could mean peace in the future for these two feuding countries.

What I saw in the war

Reporter Janine di Giovanni has been to the worst places on Earth to bring back stories from Bosnia, Sierra Leone and most recently Syria. She tells stories of human moments within large conflicts -- and explores that shocking transition when a familiar city street becomes a bombed-out battleground.

Louise Fresco on feeding the whole world

Louise Fresco shows us why we should celebrate mass-produced, supermarket-style white bread. She says environmentally sound mass production will feed the world, yet leave a role for small bakeries and traditional methods.

Time to end the war in Afghanistan

British MP Rory Stewart walked across Afghanistan after 9/11, talking with citizens and warlords alike. Now, a decade later, he asks: Why are Western and coalition forces still fighting there? He shares lessons from past military interventions that worked -- Bosnia, for instance -- and shows that humility and local expertise are the keys to success.

Hooked by an octopus

Underwater filmmaker Mike deGruy has spent decades looking intimately at the ocean. A consummate storyteller, he takes the stage at Mission Blue to share his awe and excitement -- and his fears -- about the blue heart of our planet.

Life lessons from big cats

Beverly + Dereck Joubert live in the bush, filming and photographing lions and leopards in their natural habitat. With stunning footage (some never before seen), they discuss their personal relationships with these majestic animals -- and their quest to save the big cats from human threats.

Use data to build better schools

How can we measure what makes a school system work? Andreas Schleicher walks us through the PISA test, a global measurement that ranks countries against one another -- then uses that same data to help schools improve. Watch to find out where your country stacks up, and learn the single factor that makes some systems outperform others.

Selling condoms in the Congo

HIV is a serious problem in the DR Congo, and aid agencies have flooded the country with free and cheap condoms. But few people are using them. Why? "Reformed marketer" Amy Lockwood offers a surprising answer that upends a traditional model of philanthropy. (Some NSFW images.)

E-voting without fraud

David Bismark demos a new system for voting that contains a simple, verifiable way to prevent fraud and miscounting -- while keeping each person's vote secret.

Zeresenay Alemseged looks for humanity's roots

Paleoanthropologist Zeresenay Alemseged looks for the roots of humanity in Ethiopia's badlands. Here he talks about finding the oldest skeleton of a humanoid child -- and how Africa holds the clues to our humanity.

Obesity + Hunger = 1 global food issue

Co-creator of the philanthropic FEED bags, Ellen Gustafson says hunger and obesity are two sides of the same coin. At TEDxEast, she launches The 30 Project -- a way to change how we farm and eat in the next 30 years, and solve the global food inequalities behind both epidemics.

The sore problem of prosthetic limbs

What drove David Sengeh to create a more comfortable prosthetic limb? He grew up in Sierra Leone, and too many of the people he loves are missing limbs after the brutal civil war there. When he noticed that people who had prosthetics weren’t actually wearing them, the TED Fellow set out to discover why — and to solve the problem with his team from the MIT Media Lab.

Murray Gell-Mann on the ancestor of language

After speaking at TED2007 on elegance in physics, the amazing Murray Gell-Mann gives a quick overview of another passionate interest: finding the common ancestry of our modern languages.

A third way to think about aid

The debate over foreign aid often pits those who mistrust "charity" against those who mistrust reliance on the markets. Jacqueline Novogratz proposes a middle way she calls patient capital, with promising examples of entrepreneurial innovation driving social change.

Jacqueline Novogratz on escaping poverty

Jacqueline Novogratz tells a moving story of an encounter in a Nairobi slum with Jane, a former prostitute, whose dreams of escaping poverty, of becoming a doctor and of getting married were fulfilled in an unexpected way.

Why civilians suffer more once a war is over

In a war, it turns out that violence isn't the biggest killer of civilians. What is? Illness, hunger, poverty — because war destroys the institutions that keep society running, like utilities, banks, food systems and hospitals. Physician Margaret Bourdeaux proposes a bold approach to post-conflict recovery, setting priorities on what to fix first

A clean energy proposal -- race to the top!

Kicking off the TED2013 conference, Jennifer Granholm asks a very American question with worldwide implications: How do we make more jobs? Her big idea: Invest in new alternative energy sources. And her big challenge: Can it be done with or without our broken Congress?

Women, wartime and the dream of peace

In war we often see only the frontline stories of soldiers and combat. AT TEDGlobal 2010, Zainab Salbi tells powerful "backline" stories of women who keep everyday life going during conflicts, and calls for women to have a place at the negotiating table once fighting is over.

A Navy Admiral's thoughts on global security

Imagine global security driven by collaboration -- among agencies, government, the private sector and the public. That's not just the distant hope of open-source fans, it's the vision of James Stavridis, a highly accomplished Navy Admiral. Stavridis shares vivid moments from recent military history to explain why security of the future should be built with bridges

Ben Saunders skis to the North Pole

Arctic explorer Ben Saunders recounts his harrowing solo ski trek to the North Pole, complete with engaging anecdotes, gorgeous photos and never-before-seen video.

The chilling aftershock of a brush with death

In April 2003, just as American troops began rolling into Baghdad, a shell smashed into the building author and war correspondent Jean-Paul Mari was reporting from. There he had a face-to-face encounter with death, beginning his acquaintance with a phantom that has haunted those who have risked their lives on battlefields since ancient times. "What is this thing that

The intricate economics of terrorism

Loretta Napoleoni details her rare opportunity to talk to the secretive Italian Red Brigades -- an experience that sparked a lifelong interest in terrorism. She gives a behind-the-scenes look at its complex economics, revealing a surprising connection between money laundering and the US Patriot Act.

The moral dangers of non-lethal weapons

Pepper spray and tasers are in increasing use by both police and military, and more exotic non-lethal weapons such as heat rays are in the works. At TEDxCanberra, ethicist Stephen Coleman explores the unexpected consequences of their introduction and asks some challenging questions.

Can democracy exist without trust?

Five great revolutions have shaped political culture over the past 50 years, says theorist Ivan Krastev. He shows how each step forward -- from the cultural revolution of the ‘60s to recent revelations in the field of neuroscience -- has also helped erode trust in the tools of democracy. As he says, "What went right is also what went wrong." Can democracy survive?

The universal anesthesia machine

What if you're in surgery and the power goes out? No lights, no oxygen -- and your anesthesia stops flowing. It happens constantly in hospitals throughout the world, turning routine procedures into tragedies. Erica Frenkel demos one solution: the universal anesthesia machine.

How common threats can make common (political) ground

If an asteroid were headed for Earth, we'd all band together and figure out how to stop it, just like in the movies, right? And yet, when faced with major, data-supported, end-of-the-world problems in real life, too often we retreat into partisan shouting and stalemate. Jonathan Haidt shows us a few of the very real asteroids headed our way -- some pet causes of the

The logic of non-zero-sum progress

Author Robert Wright explains "non-zero-sumness" -- the network of linked fortunes and cooperation that has guided our evolution to this point -- and how we can use it to help save humanity today.

Take back your city with paint

Make a city beautiful, curb corruption. Edi Rama took this deceptively simple path as mayor of Tirana, Albania, where he instilled pride in his citizens by transforming public spaces with colorful designs. With projects that put the people first, Rama decreased crime -- and showed his citizens they could have faith in their leaders. (Filmed at TEDxThessaloniki.)

How to air-condition outdoor spaces

During the hot summer months, watching an outdoor sports match or concert can be tantamount to baking uncomfortably in the sun -- but it doesn’t have to be. At the TEDxSummit in Doha, physicist Wolfgang Kessling reveals sustainable design innovations that cool us from above and below, and even collects solar energy for later use.

Digital humanitarianism

The disastrous earthquake in Haiti taught humanitarian groups an unexpected lesson: the power of mobile devices to coordinate, inform, and guide relief efforts. At TEDxRC2, Paul Conneally shows extraordinary examples of social media and other new technologies becoming central to humanitarian aid.

HIV -- how to fight an epidemic of bad laws

There is an epidemic of HIV, and with it an epidemic of bad laws -- laws that effectively criminalize being HIV positive. At the TEDxSummit in Doha, TED Fellow Shereen El-Feki gives a forceful argument that these laws, based in stigma, are actually helping the disease spread.

How to expose the corrupt

Some of the world's most baffling social problems, says Peter Eigen, can be traced to systematic, pervasive government corruption, hand-in-glove with global companies. In his talk, Eigen describes the thrilling counter-attack led by his organization Transparency International. (Filmed at TEDxBerlin.)

The new power of collaboration

Howard Rheingold talks about the coming world of collaboration, participatory media and collective action -- and how Wikipedia is really an outgrowth of our natural human instinct to work as a group.

The stories behind the bloodlines

Taryn Simon captures the essence of vast, generation-spanning stories by photographing the descendants of people at the center of the narrative. In this riveting talk she shows a stream of these stories from all over the world, investigating the nature of genealogy and the way our lives are shaped by the interplay of many different forces.

Robert Neuwirth on our "shadow cities"

Robert Neuwirth, author of "Shadow Cities," finds the world’s squatter sites -- where a billion people now make their homes -- to be thriving centers of ingenuity and innovation. He takes us on a tour.

HIV and flu -- the vaccine strategy

Seth Berkley explains how smart advances in vaccine design, production and distribution are bringing us closer than ever to eliminating a host of global threats -- from AIDS to malaria to flu pandemics.

How we'll stop polio for good

Polio is almost completely eradicated. But as Bruce Aylward says: Almost isn't good enough with a disease this terrifying. Aylward lays out the plan to continue the scientific miracle that ended polio in most of the world -- and to snuff it out everywhere, forever.

Josh Silver demos adjustable liquid-filled eyeglasses

Josh Silver delivers his brilliantly simple solution for correcting vision at the lowest cost possible -- adjustable, liquid-filled lenses. At TEDGlobal 2009, he demos his affordable eyeglasses and reveals his global plan to distribute them to a billion people in need by 2020.

My country will be underwater soon — unless we work together

For the people of Kiribati, climate change isn't something to be debated, denied or legislated against — it's an everyday reality. The low-lying Pacific island nation may soon be underwater, thanks to rising sea levels. In a personal conversation with TED Curator Chris Anderson, Kiribati President Anote Tong discusses his country's present climate catastrophe and its

A forensic anthropologist who brings closure for the "disappeared"

In Guatemala’s 36-year conflict, 200,000 civilians were killed — and more than 40,000 were never identified. At the Forensic Anthropology Foundation of Guatemala, Fredy Peccerelli and his team use DNA, archeology and storytelling to help families find the bodies of their loved ones. It’s a sobering task, but it can bring peace of mind — and sometimes, justice. (

How cyberattacks threaten real-world peace

More and more, nations are waging attacks with cyber weapons -- silent strikes on another country's computer systems that leave behind no trace. (Think of the Stuxnet worm.) At TEDxParis, Guy-Philippe Goldstein shows how cyberattacks can leap between the digital and physical worlds to prompt armed conflict -- and how we might avert this global security hazard.

The world's first charter city?

Back in 2009, Paul Romer unveiled the idea for a "charter city" -- a new kind of city with rules that favor democracy and trade. This year, at TED2011, he tells the story of how such a city might just happen in Honduras ... with a little help from his TEDTalk.

How photography connects us

The photo director for National Geographic, David Griffin knows the power of photography to connect us to our world. In a talk filled with glorious images, he talks about how we all use photos to tell our stories.

And now, the real news

How many of today's headlines will matter in 100 years? 1000? Kirk Citron's "Long News" project collects stories that not only matter today, but will resonate for decades -- even centuries -- to come. At TED2010, he highlights recent headlines with the potential to shape our future.

Hawa Abdi + Deqo Mohamed

They've been called the "saints of Somalia." Doctor Hawa Abdi and her daughter Deqo Mohamed discuss their medical clinic in Somalia, where -- in the face of civil war and open oppression of women -- they've built a hospital, a school and a community of peace.

Why I'm rowing across the Pacific

Five years ago, Roz Savage quit her high-powered London job to become an ocean rower. She's crossed the Atlantic solo, and just started the third leg of a Pacific solo row, the first for a woman. Why does she do it? Hear her reasons, both deeply personal and urgently activist.

Edward Burtynsky photographs the landscape of oil

In stunning large-format photographs, Edward Burtynsky follows the path of oil through modern society, from wellhead to pipeline to car engine -- and then beyond to the projected peak-oil endgame.

Stewart Brand on squatter cities

Rural villages worldwide are being deserted, as billions of people flock to cities to live in teeming squatter camps and slums. Stewart Brand says this is a good thing. Why? It’ll take you 3 minutes to find out.

Asher Hasan's message of peace from Pakistan

One of a dozen Pakistanis who came to TEDIndia despite security hassles entering the country, TED Fellow Asher Hasan shows photos of ordinary Pakistanis that drive home a profound message for citizens of all nations: look beyond disputes, and see the humanity we share.

Peter Gabriel fights injustice with video

Musician and activist Peter Gabriel shares his very personal motivation for standing up for human rights with the watchdog group WITNESS -- and tells stories of citizen journalists in action.

How to stop torture

Political prisoners aren't the only ones being tortured -- the vast majority of judicial torture happens in ordinary cases, even in 'functioning' legal systems. Social activist Karen Tse shows how we can, and should, stand up and end the use of routine torture.

Larry Brilliant wants to stop pandemics

Accepting the 2006 TED Prize, Dr. Larry Brilliant talks about how smallpox was eradicated from the planet, and calls for a new global system that can identify and contain pandemics before they spread.

My father the forger

Sarah Kaminsky tells the extraordinary story of her father Adolfo and his activity during World War II -- using his ingenuity and talent for forgery to save lives.

Ernest Madu on world-class health care

Dr. Ernest Madu runs the Heart Institute of the Caribbean in Kingston, Jamaica, where he proves that -- with careful design, smart technical choices, and a true desire to serve -- it's possible to offer world-class healthcare in the developing world.

Jeff Skoll makes movies that matter

Film producer Jeff Skoll (An Inconvenient Truth) talks about his film company, Participant Productions, and the people who've inspired him to do good.

Why Libya's revolution didn't work -- and what might

In Libya, Zahra' Langhi was part of the "days of rage" movement that helped topple the dictator Qaddafi. But -- then what? In their first elections, Libyans tried an innovative slate of candidates, the "zipper ballot," that ensured equal representation from men and women of both sides. Yet the same gridlocked politics of dominance and exclusion won out. What Libya

4 lessons I learned from taking a stand against drugs and gun violence

Throughout her career in banking Ilona Szabó de Carvalho never imagined she’d someday start a social movement. But living in her native Brazil, which leads the world in homicidal violence, she realized she couldn’t just stand by and watch drugs and guns tear her country apart. Szabó de Carvalho reveals four crucial lessons she learned when she left her cushy job and

Ngozi Okonjo-Iweala on aid versus trade

Ngozi Okonjo-Iweala, the former finance minister of Nigeria, sums up four days of intense discussion on aid versus trade on the closing day of TEDGlobal 2007, and shares a personal story explaining her own commitment to this cause.

Who would the rest of the world vote for in your country's election?

Wish you could vote in another country's election? Simon Anholt unveils the Global Vote, an online platform that lets anybody, anywhere in the world, "vote" in the election of any country on earth (with surprising results).

The hidden light of Afghanistan

Photographer Monika Bulaj shares powerful, intimate images of Afghanistan -- of home life, of ritual, of men and women. Behind the headlines, what does the world truly know about this place?

Lee Smolin on science and democracy

Physicist Lee Smolin talks about how the scientific community works: as he puts it, "we fight and argue as hard as we can," but everyone accepts that the next generation of scientists will decide who's right. And, he says, that's how democracy works, too.

Larry Brilliant makes the case for optimism

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

The route to a sustainable future

Worldchanging.com founder Alex Steffen argues that reducing humanity’s ecological footprint is incredibly vital now, as the western consumer lifestyle spreads to developing countries.

Gordon Brown on global ethic vs. national interest

Can the interests of an individual nation be reconciled with humanity's greater good? Can a patriotic, nationally elected politician really give people in other countries equal consideration? Following his TEDTalk calling for a global ethic, UK Prime Minister Gordon Brown fields questions from TED Curator Chris Anderson.

Ethical riddles in HIV research

It’s an all too common story: after participating in an HIV clinical trial, a woman in sub-Saharan Africa is left without the resources to buy a bus ticket to her health clinic, let alone to afford life-saving antiretrovirals. Boghuma Kabisen Titanji asks an important question: how can researchers looking for a cure make sure they’re not taking advantage of those most

An independent diplomat

After 15 years in the British diplomatic corps, Carne Ross became a "freelance diplomat," running a bold nonprofit that gives small, developing and yet-unrecognized nations a voice in international relations. At the BIF-5 conference, he calls for a new kind of diplomacy that gives voice to small countries, that works with changing boundaries and that welcomes

Tom Honey on God and the tsunami

In the days following the tragic South Asian tsunami of 2004, the Rev. Tom Honey pondered the question, "How could a loving God have done this?" Here is his answer.

Iqbal Quadir says mobiles fight poverty

Iqbal Quadir tells how his experiences as a kid in poor Bangladesh, and later as a banker in New York, led him to start a mobile phone operator connecting 80 million rural Bangladeshi -- and to become a champion of bottom-up development.

A historic moment in the Arab world

As a democratic revolution led by tech-empowered young people sweeps the Arab world, Wadah Khanfar, the head of Al Jazeera, shares a profoundly optimistic view of what's happening in Egypt, Tunisia, Libya and beyond -- at this powerful moment when people realized they could step out of their houses and ask for change.

Joe DeRisi solves medical mysteries

Biochemist Joe DeRisi talks about amazing new ways to diagnose viruses (and treat the illnesses they cause) using DNA. His work may help us understand malaria, SARS, avian flu -- and the 60 percent of everyday viral infections that go undiagnosed.

Jehane Noujaim wishes for a global day of film

Jehane Noujaim unveils her 2006 TED Prize wish: to bring the world together for one day a year through the power of film.

Jonathan Harris collects stories

At the EG conference in December 2007, artist Jonathan Harris discusses his latest projects, which involve collecting stories: his own, strangers', and stories collected from the Internet, including his amazing "We Feel Fine."

Filming democracy in Ghana

Jarreth Merz, a Swiss-Ghanaian filmmaker, came to Ghana in 2008 to film the national elections. What he saw there taught him new lessons about democracy -- and about himself.

A new mission for veterans -- disaster relief

After months or years fighting overseas, 92 percent of American veterans say they want to continue their service; meanwhile, one after another, natural disasters continue to wreak havoc worldwide. What do these two challenges have in common? Team Rubicon co-founder Jake Wood gives a moving talk on how veterans can effectively contribute to disaster relief responses --

Paul Collier's new rules for rebuilding a broken nation

Long conflict can wreck a country, leaving behind poverty and chaos. But what's the right way to help war-torn countries rebuild? At TED@State, Paul Collier explains the problems with current post-conflict aid plans, and suggests 3 ideas for a better approach.

Deborah Scranton on her "War Tapes"

Filmmaker Deborah Scranton talks about and shows clips from her documentary The War Tapes, which puts cameras in the hands of soldiers fighting in Iraq.

Paul Ewald asks, Can we domesticate germs?

Evolutionary biologist Paul Ewald drags us into the sewer to discuss germs. Why are some more harmful than others? How could we make the harmful ones benign? Searching for answers, he examines a disgusting, fascinating case: diarrhea.

Chris Abani on the stories of Africa

In this deeply personal talk, Nigerian writer Chris Abani says that “what we know about how to be who we are” comes from stories. He searches for the heart of Africa through its poems and narrative, including his own.

The great penguin rescue

A personal story, a collective triumph: Dyan deNapoli tells the story of the world's largest volunteer animal rescue, which saved more than 40,000 penguins after an oil spill off the coast of South Africa. How does a job this big get done? Penguin by penguin by penguin ...

Ray Zahab treks to the South Pole

Extreme runner Ray Zahab shares an enthusiastic account of his record-breaking trek on foot to the South Pole -- a 33-day sprint through the snow.

Jacqueline Novogratz on patient capitalism

Jacqueline Novogratz shares stories of how "patient capital" can bring sustainable jobs, goods, services -- and dignity -- to the world's poorest.

The anthropology of mobile phones

Nokia researcher Jan Chipchase's investigation into the ways we interact with technology has led him from the villages of Uganda to the insides of our pockets. He's made some unexpected discoveries along the way.

Hector Ruiz on connecting the world

Hector Ruiz, the executive chair of AMD, wants to give Internet access to everyone. In this talk, he shares his extraordinary life story and describes AMD's 50x15 initiative that calls for connecting 50 percent of the world by 2015.

Kristen Ashburn's photos of AIDS

In this moving talk, documentary photographer Kristen Ashburn shares unforgettable images of the human impact of AIDS in Africa.

A climate solution where all sides can win

Why are we so deadlocked on climate, and what would it take to overcome the seemingly insurmountable barriers to progress? Policy entrepreneur Ted Halstead proposes a transformative solution based on the conservative principles of free markets and limited government. Learn more about how this carbon dividends plan could trigger an international domino effect towards a

Noah Feldman says politics and religion are technologies

Noah Feldman makes a searing case that both politics and religion -- whatever their differences -- are similar technologies, designed to efficiently connect and manage any group of people.

Pay attention to penguins

Think of penguins as ocean sentinels, says Dee Boersma -- they're on the frontlines of sea change. Sharing stories of penguin life and culture, she suggests that we start listening to what penguins are telling us.

The fight to end rare-animal trafficking in Brazil

Biologist Juliana Machado Ferreira, a TED Senior Fellow, talks about her work helping to save birds and other animals stolen from the wild in Brazil. Once these animals are seized from smugglers, she asks, then what?

Phil Borges on endangered cultures

Photographer Phil Borges shows rarely seen images of people from the mountains of Dharamsala, India, and the jungles of the Ecuadorean Amazon. In documenting these endangered cultures, he intends to help preserve them.

Franco Sacchi tours Nigeria's booming Nollywood

Zambia-born filmmaker Franco Sacchi tours us through Nollywood, Nigeria's booming film industry (the world's 3rd largest). Guerrilla filmmaking and brilliance under pressure from crews that can shoot a full-length feature in a week.

Sasa Vucinic invests in free press

A free press -- papers, magazines, radio, TV, blogs -- is the backbone of any true democracy (and a vital watchdog on business). Sasa Vucinic, a journalist from Belgrade, talks about his new fund, which supports media by selling "free press bonds."

Jacqueline Novogratz invests in Africa's own solutions

Jacqueline Novogratz applauds the world's heightened interest in Africa and poverty, but argues persuasively for a new approach.

Euvin Naidoo on investing in Africa

South African investment banker Euvin Naidoo explains why investing in Africa can make great business sense.

How the market can keep streams flowing

With streams and rivers drying up because of over-usage, Rob Harmon has implemented an ingenious market mechanism to bring back the water. Farmers and beer companies find their fates intertwined in the intriguing century-old tale of Prickly Pear Creek.

Steven Johnson on the Web as a city

Outside.in's Steven Johnson says the Web is like a city: built by many people, completely controlled by no one, intricately interconnected and yet functioning as many independent parts. While disaster strikes in one place, elsewhere, life goes on.

The science behind a climate headline

In 4 minutes, atmospheric chemist Rachel Pike provides a glimpse of the massive scientific effort behind the bold headlines on climate change, with her team -- one of thousands who contributed -- taking a risky flight over the rainforest in pursuit of data on a key molecule.

The refugee crisis is a test of our character

Sixty-five million people were displaced from their homes by conflict and disaster in 2016. It's not just a crisis; it's a test of who we are and what we stand for, says David Miliband — and each of us has a personal responsibility to help solve it. In this must-watch talk, Miliband gives us specific, tangible ways to help refugees and turn empathy and altruism into

Negroponte takes OLPC to Colombia

TED follows Nicholas Negroponte to Colombia as he delivers laptops inside territory once controlled by guerrillas. His partner? Colombia's Defense Department, who see One Laptop per Child as an investment in the region. (And you too can get involved.)

The refugees of boom-and-bust

At TEDGlobal U, Cameron Sinclair shows the unreported cost of real estate megaprojects gone bust: thousands of migrant construction laborers left stranded and penniless. To his fellow architects, he says there is only one ethical response.

A secret weapon against Zika and other mosquito-borne diseases

Where did Zika come from, and what can we do about it? Molecular biologist Nina Fedoroff takes us around the world to understand Zika's origins and how it spread, proposing a controversial way to stop the virus — and other deadly diseases — by preventing infected mosquitoes from multiplying.

Do the green thing

Andy Hobsbawm shares a fresh ad campaign about going green -- and some of the fringe benefits.

Joseph Lekuton tells a parable for Kenya

Joseph Lekuton, a member of parliament in Kenya, starts with the story of his remarkable education, then offers a parable of how Africa can grow. His message of hope has never been more relevant.

What really matters at the end of life

At the end of our lives, what do we most wish for? For many, it’s simply comfort, respect, love. BJ Miller is a palliative care physician at Zen Hospice Project who thinks deeply about how to create a dignified, graceful end of life for his patients. Take the time to savor this moving talk, which asks big questions about how we think on death and honor life.

Newton Aduaka tells the story of Ezra

Filmmaker Newton Aduaka shows clips from his powerful, lyrical feature film "Ezra," about a child soldier in Sierra Leone.

Keith Bellows on the camel's hump

Keith Bellows gleefully outlines the engineering marvels of the camel, a vital creature he calls "the SUV of the desert." Though he couldn't bring a live camel to TED, he gets his camera crew as close as humanly possible to a one-ton beast in full rut.

Why Brexit happened — and what to do next

We are embarrassingly unaware of how divided our societies are, and Brexit grew out of a deep, unexamined divide between those that fear globalization and those that embrace it, says social scientist Alexander Betts. How do we now address that fear as well as growing disillusionment with the political establishment, while refusing to give in to xenophobia and

A vision for sustainable restaurants

If you've been in a restaurant kitchen, you've seen how much food, water and energy can be wasted there. Chef Arthur Potts-Dawson shares his very personal vision for drastically reducing restaurant, and supermarket, waste -- creating recycling, composting, sustainable engines for good (and good food).

How to combat modern slavery

In this moving yet pragmatic talk, Kevin Bales explains the business of modern slavery, a multibillion-dollar economy that underpins some of the worst industries on earth. He shares stats and personal stories from his on-the-ground research -- and names the price of freeing every slave on earth right now.

Listening to global voices

Sure, the web connects the globe, but most of us end up hearing mainly from people just like ourselves. Blogger and technologist Ethan Zuckerman wants to help share the stories of the whole wide world. He talks about clever strategies to open up your Twitter world and read the news in languages you don't even know.

How I teach kids to love science

At the Harbour School in Hong Kong, TED Senior Fellow Cesar Harada teaches citizen science and invention to the next generation of environmentalists. He's moved his classroom into an industrial mega-space where imaginative kids work with wood, metal, chemistry, biology, optics and, occasionally, power tools to create solutions to the threats facing the world's oceans.

The surprising spread of "Idol" TV

Cynthia Schneider looks at two international "American Idol"-style shows -- one in Afghanistan, and one in the United Arab Emirates -- and shows the surprising effect that these reality-TV competitions are creating in their societies.

The evolution of compassion

Robert Wright uses evolutionary biology and game theory to explain why we appreciate the Golden Rule ("Do unto others..."), why we sometimes ignore it and why there’s hope that, in the near future, we might all have the compassion to follow it.

On reading the Koran

Lesley Hazleton sat down one day to read the Koran. And what she found -- as a non-Muslim, a self-identified "tourist" in the Islamic holy book -- wasn't what she expected. With serious scholarship and warm humor, Hazleton shares the grace, flexibility and mystery she found, in this myth-debunking talk from TEDxRainier.

Understanding the rise of China

Speaking at a TED Salon in London, economist Martin Jacques asks: How do we in the West make sense of China and its phenomenal rise? The author of "When China Rules the World," he examines why the West often puzzles over the growing power of the Chinese economy, and offers three building blocks for understanding what China is and will become.

Alisa Miller shares the news about the news

Alisa Miller, head of Public Radio International, talks about why -- though we want to know more about the world than ever -- the US media is actually showing less. Eye-opening stats and graphs.

How fear of nuclear power is hurting the environment

"We're not in a clean energy revolution; we're in a clean energy crisis," says climate policy expert Michael Shellenberger. His surprising solution: nuclear. In this passionate talk, he explains why it's time to overcome longstanding fears of the technology, and why he and other environmentalists believe it's past time to embrace nuclear as a viable and desirable

Haiti's disaster of engineering

"Haiti was not a natural disaster," says TED Fellow Peter Haas: "It was a disaster of engineering." As the country rebuilds after January's deadly quake, are bad old building practices creating another ticking time bomb? Haas's group, AIDG, is helping Haiti's builders learn modern building and engineering practices, to assemble a strong country brick by brick.

A boat carrying 500 refugees sunk at sea. The story of two survivors

Aboard an overloaded ship carrying more than 500 refugees, a young woman becomes an unlikely hero. This single, powerful story, told by Melissa Fleming of the UN's refugee agency, gives a human face to the sheer numbers of human beings trying to escape to better lives ... as the refugee ships keep coming ...

How to fix a broken education system ... without any more money

Seema Bansal forged a path to public education reform for 15,000 schools in Haryana, India, by setting an ambitious goal: by 2020, 80 percent of children should have grade-level knowledge. She's looking to meet this goal by seeking reforms that will work in every school without additional resources. Bansal and her team have found success using creative,

Patrick Awuah on educating leaders

Patrick Awuah makes the case that a liberal arts education is critical to forming true leaders.

This is what LGBT life is like around the world

As a gay couple in San Francisco, Jenni Chang and Lisa Dazols had a relatively easy time living the way they wanted. But outside the bubble of the Bay Area, what was life like for people still lacking basic rights? They set off on a world tour in search of "Supergays," LGBT people who were doing something extraordinary in the world. In 15 countries across Africa, Asia

The surprising way groups like ISIS stay in power

ISIS, Hezbollah, Hamas. These three very different groups are known for violence — but that’s only a portion of what they do, says policy analyst Benedetti Berti. They also attempt to win over populations with social work: setting up schools and hospitals, offering safety and security, and filling the gaps left by weak governments. Understanding the broader work of

I survived a terrorist attack. Here's what I learned

Gill Hicks's story is one of compassion and humanity, emerging from the ashes of chaos and hate. A survivor of the London terrorist bombings on July 7, 2005, she shares her story of the events of that day — and the profound lessons that came as she learned how to live on.

The laws that sex workers really want

Everyone has an opinion about how to legislate sex work (whether to legalize it, ban it or even tax it) ... but what do workers themselves think would work best? Activist Toni Mac explains four legal models that are being used around the world and shows us the model that she believes will work best to keep sex workers safe and offer greater self-determination. "If you

The real harm of the global arms trade

In some parts of the world, it's easier to get an automatic rifle than a glass of clean drinking water. Is this just the way it is? Samantha Nutt, doctor and founder of the international humanitarian organization War Child, explores the global arms trade — and suggests a bold, common sense solution for ending the cycle of violence. "War is ours," she says. "We buy it,

How the US should use its superpower status

Americanization and globalization have basically been the same thing for the last several generations. But the US's view of the world — and the world's view of the US — is changing. In a fast-paced tour of the current state of international politics, Ian Bremmer discusses the challenges of a world where no single country or alliance can meet the challenges of global

Two nameless bodies washed up on the beach. Here are their stories

When two bodies wearing identical wetsuits washed ashore in Norway and the Netherlands, journalist Anders Fjellberg and photographer Tomm Christiansen started a search to answer the question: who were these people? What they found and reported in Norway’s “Dagbladet” is that everybody has a name, everybody has a story and everybody is someone.

Erik Hersman on reporting crisis via texting

At TEDU 2009, Erik Hersman presents the remarkable story of Ushahidi, a GoogleMap mashup that allowed Kenyans to report and track violence via cell phone texts following the 2008 elections, and has evolved to continue saving lives in other countries.

Amy Smith shares simple, lifesaving design

Fumes from indoor cooking fires kill more than 2 million children a year in the developing world. MIT engineer Amy Smith details an exciting but simple solution: a tool for turning farm waste into clean-burning charcoal.

Ory Okolloh on becoming an activist

Ory Okolloh tells the story of her life and her family -- and how she came to do her heroic work reporting on the doings of Kenya's parliament.

The balancing act of compassion

While we all agree that compassion is a great idea, Rabbi Tabick acknowledges there are challenges to its execution. She explains how a careful balance of compassion and justice allows us to do good deeds, and keep our sanity.

3 reasons why we can win the fight against poverty

Half of the world's poorest people have something in common: they're small farmers. In this eye-opening talk, activist Andrew Youn shows how his group, One Acre Fund, is helping these farmers lift themselves out of poverty by delivering to them life-sustaining farm services that are already in use all over the world. Enter this talk believing we'll never be able to

Inspiring a life of immersion

We each want to live a life of purpose, but where to start? In this luminous, wide-ranging talk, Jacqueline Novogratz introduces us to people she's met in her work in "patient capital" -- people who have immersed themselves in a cause, a community, a passion for justice. These human stories carry powerful moments of inspiration.

3 ways to fix a broken news industry

Something is very wrong with the news industry. Trust in the media has hit an all-time low; we're inundated with sensationalist stories, and consistent, high-quality reporting is scarce, says journalist Lara Setrakian. She shares three ways we can fix the news to better inform all of us about the complex issues of our time.

How poachers became caretakers

In his home of Namibia, John Kasaona is working on an innovative way to protect endangered animal species: giving nearby villagers (including former poachers) responsibility for caring for the animals. And it's working.

Behind the lies of Holocaust denial

"There are facts, there are opinions, and there are lies," says historian Deborah Lipstadt, telling the remarkable story of her research into Holocaust deniers — and their deliberate distortion of history. Lipstadt encourages us all to go on the offensive against those who assault the truth and facts. "Truth is not relative," she says.

The Happy Planet Index

Statistician Nic Marks asks why we measure a nation's success by its productivity -- instead of by the happiness and well-being of its people. He introduces the Happy Planet Index, which tracks national well-being against resource use (because a happy life doesn't have to cost the earth). Which countries rank highest in the HPI? You might be surprised.

The risky politics of progress

Global problems such as terrorism, inequality and political dysfunction aren't easy to solve, but that doesn't mean we should stop trying. In fact, suggests journalist Jonathan Tepperman, we might even want to think riskier. He traveled the world to ask global leaders how they're tackling hard problems — and unearthed surprisingly hopeful stories that he's distilled

How we'll fight the next deadly virus

When Ebola broke out in March 2014, Pardis Sabeti and her team got to work sequencing the virus's genome, learning how it mutated and spread. Sabeti immediately released her research online, so virus trackers and scientists from around the world could join in the urgent fight. In this talk, she shows how open cooperation was key to halting the virus ... and to

Take "the Other" to lunch

There's an angry divisive tension in the air that threatens to make modern politics impossible. Elizabeth Lesser explores the two sides of human nature within us (call them "the mystic" and "the warrior”) that can be harnessed to elevate the way we treat each other. She shares a simple way to begin real dialogue -- by going to lunch with someone who doesn't agree with

A smarter, more precise way to think about public health

Sue Desmond-Hellmann is using precision public health — an approach that incorporates big data, consumer monitoring, gene sequencing and other innovative tools — to solve the world's most difficult medical problems. It's already helped cut HIV transmission from mothers to babies by nearly half in sub-Saharan Africa, and now it's being used to address alarming infant

The El Sistema music revolution

Jose Antonio Abreu is the charismatic founder of a youth orchestra system that has transformed thousands of kids' lives in Venezuela. Here he shares his amazing story and unveils a TED Prize wish that could have a big impact in the US and beyond.

How to exploit democracy

Hacking, fake news, information bubbles ... all these and more have become part of the vernacular in recent years. But as cyberspace analyst Laura Galante describes in this alarming talk, the real target of anyone looking to influence geopolitics is dastardly simple: it's you.

How the Panama Papers journalists broke the biggest leak in history

Gerard Ryle led the international team that divulged the Panama Papers, the 11.5 million leaked documents from 40 years of activity of the Panamanian law firm Mossack Fonseca that have offered an unprecedented glimpse into the scope and methods of the secretive world of offshore finance. Hear the story behind the biggest collaborative journalism project in history.

Pop culture in the Arab world

At TEDGlobal University, Shereen El Feki shows how some Arab cultures are borrowing trademarks of Western pop culture -- music videos, comics, even Barbie -- and adding a culturally appropriate twist. The hybridized media shows how two civilizations, rather than dividing, can dovetail.

The troubling reason why vaccines are made too late ... if they’re made at all

It seems like we wait for a disastrous disease outbreak before we get serious about making a vaccine for it. Seth Berkley lays out the market realities and unbalanced risks behind why we aren't making vaccines for the world's biggest diseases.

We need nuclear power to solve climate change

Joe Lassiter is a deep thinker and straight talker focused on developing clean, secure and carbon-neutral supplies of reliable, low-cost energy. His analysis of the world's energy realities puts a powerful lens on the stubbornly touchy issue of nuclear power, including new designs for plants that can compete economically with fossil fuels. We have the potential to

Inge Missmahl brings peace to the minds of Afghanistan

When Jungian analyst Inge Missmahl visited Afghanistan, she saw the inner wounds of war -- widespread despair, trauma and depression. And yet, in this county of 30 million people, there were only two dozen psychiatrists. Missmahl talks about her work helping to build the country's system of psychosocial counseling, promoting both individual and, perhaps, national

The unexpected challenges of a country's first election

How do you teach an entire country how to vote when no one has done it before? It's a huge challenge facing fledgling democracies around the world — and one of the biggest problems turns out to be a lack of shared language. After all, if you can't describe something, you probably can't understand it. In this eye-opening talk, election expert Philippa Neave shares her

A police chief with a difference

Kiran Bedi has a surprising resume. Before becoming Director General of the Indian Police Service, she managed one of the country's toughest prisons -- and used a new focus on prevention and education to turn it into a center of learning and meditation. She shares her thoughts on visionary leadership at TEDWomen.

Rory Bremner's one-man world summit

Scottish funnyman Rory Bremner convenes a historic council on the TEDGlobal stage -- as he lampoons Gordon Brown, Barack Obama, George W. Bush and a cast of other world leaders with his hilarious impressions and biting commentary. See if you can catch a few sharp TED in-jokes.

Art made of the air we breathe

Emily Parsons-Lord re-creates air from distinct moments in Earth's history — from the clean, fresh-tasting air of the Carboniferous period to the soda-water air of the Great Dying to the heavy, toxic air of the future we're creating. By turning air into art, she invites us to know the invisible world around us. Breathe in the Earth's past and future in this

The economic injustice of plastic

Van Jones lays out a case against plastic pollution from the perspective of social justice. Because plastic trash, he shows us, hits poor people and poor countries "first and worst," with consequences we all share no matter where we live and what we earn. At TEDxGPGP, he offers a few powerful ideas to help us reclaim our throwaway planet.

Making law on the high seas

Kristina Gjerde studies the law of the high seas -- the 64 percent of our ocean that isn't protected by any national law at all. Gorgeous photos show the hidden worlds that Gjerde and other lawyers are working to protect from trawling and trash-dumping, through smart policymaking and a healthy dose of PR.