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 action.

Physician David Casarett was tired of hearing hype and half-truths around medical marijuana, so he put on his skeptic's hat and investigated on his own. He comes back with a fascinating report on what we know and what we don't — and what mainstream medicine could learn from the modern medical marijuana dispensary. watch the video here

Sue Klebold is the mother of Dylan Klebold, one of the two shooters who committed the Columbine High School massacre, murdering 12 students and a teacher. She's spent years excavating every detail of her family life, trying to understand what she could have done to prevent her son's violence. In this difficult, jarring talk, Klebold explores the intersection between mental health and violence, advocating for parents and professionals to continue to examine the link between suicidal and homicidal thinking. watch the video here

Melissa Fleming: 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 ... watch the video here

By loading kids with high expectations and micromanaging their lives at every turn, parents aren't actually helping. At least, that's how Julie Lythcott-Haims sees it. With passion and wry humor, the former Dean of Freshmen at Stanford makes the case for parents to stop defining their children's success via grades and test scores. Instead, she says, they should focus on providing the oldest idea of all: unconditional love.

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 nationalism? Join Betts as he discusses four post-Brexit steps toward a more inclusive world. watch the video here

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. watch the video here

Work-life balance, says Nigel Marsh, is too important to be left in the hands of your employer. Marsh lays out an ideal day balanced between family time, personal time and productivity — and offers some stirring encouragement to make it happen. watch the video here

What if you could experience a story with your entire body, not just with your mind? Nonny de la Peña is working on a new form of journalism that combines traditional reporting with emerging virtual reality technology to put the audience inside the story. The result is an evocative experience that de la Peña hopes will help people understand the news in a brand new way. watch video here

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 solve hunger and extreme poverty, and leave it with a new understanding of the scale of the world's biggest problems. watch the video here

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 care about gender equality or poverty or migration or public health, then sex worker rights matter to you," she says. "Make space for us in your movements." (Adult themes) WATCH THE VIDEO HERE

In the US, the press has a right to publish secret information the public needs to know, protected by the First Amendment. Government surveillance has made it increasingly more dangerous for whistleblowers, the source of virtually every important story about national security since 9/11, to share information. In this concise, informative talk, Freedom of the Press Foundation co-founder and TED Fellow Trevor Timm traces the recent history of government action against individuals who expose crime and injustice and advocates for technology that can help them do it safely and anonymously. WATCH THE VIDEO HERE

Hugh Evans started a movement that mobilizes "global citizens," people who self-identify first and foremost not as members of a state, nation or tribe but as members of the human race. In this uplifting and personal talk, learn more about how this new understanding of our place in the world is galvanizing people to take action in the fights against extreme poverty, climate change, gender inequality and more. "These are ultimately global issues," Evans says, "and they can only be solved by global citizens demanding global solutions from their leaders."

On April 3, 2016 we saw the largest data leak in history. The Panama Papers exposed rich and powerful people hiding vast amounts of money in offshore accounts. But what does it all mean? We called Robert Palmer of Global Witness to find out. Watch the video here

"I want you to reimagine how life is organized on earth," says global strategist Parag Khanna. As our expanding cities grow ever more connected through transportation, energy and communications networks, we evolve from geography to what he calls "connectography." This emerging global network civilization holds the promise of reducing pollution and inequality — and even overcoming geopolitical rivalries. In this talk, Khanna asks us to embrace a new maxim for the future: "Connectivity is destiny." Watch the video here

We don't have to live in a world where 99 percent of rapists get away with it, says TED Fellow Jessica Ladd. With Callisto, a new platform for college students to confidentially report sexual assault, Ladd is helping survivors get the support and justice they deserve while respecting their privacy concerns. "We can create a world where there's a real deterrent to violating the rights of another human being," she says.

Deep in the Himalayas, on the border between China and India, lies the Kingdom of Bhutan, which has pledged to remain carbon neutral for all time. In this illuminating talk, Bhutan's Prime Minister Tshering Tobgay shares his country's mission to put happiness before economic growth and set a world standard for environmental preservation. Watch a video of this talk here

A million refugees arrived in Europe this year, says Alexander Betts, and "our response, frankly, has been pathetic." Betts studies forced migration, the impossible choice for families between the camps, urban poverty and dangerous illegal journeys to safety. In this insightful talk, he offers four ways to change the way we treat refugees, so they can make an immediate contribution to their new homes. "There's nothing inevitable about refugees being a cost," Betts says. "They're human beings with skills, talents, aspirations, with the ability to make contributions — if we let them." watch a video of this talk here

As the world's climate patterns continue to shift unpredictably, places where drinking water was once abundant may soon find reservoirs dry and groundwater aquifers depleted. In this talk, civil and environmental engineer David Sedlak shares four practical solutions to the ongoing urban water crisis. His goal: to shift our water supply towards new, local sources of water and create a system that is capable of withstanding any of the challenges climate change may throw at us in the coming years.

Investigative journalist Will Potter is the only reporter who has been inside a Communications Management Unit, or CMU, within a US prison. These units were opened secretly, and radically alter how prisoners are treated — even preventing them from hugging their children. Potter, a TED Fellow, shows us who is imprisoned here, and how the government is trying to keep them hidden. "The message was clear," he says. "Don’t talk about this place." Find sources for this talk at willpotter.com/cmu

Imagine the hottest day you've ever experienced. Now imagine it's six, 10 or 12 degrees hotter. According to climate researcher Alice Bows-Larkin, that's the type of future in store for us if we don't significantly cut our greenhouse gas emissions now. She suggests that it's time we do things differently—a whole system change, in fact—and seriously consider trading economic growth for climate stability.

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?

As America becomes more and more multicultural, Rich Benjamin noticed a phenomenon: Some communities were actually getting less diverse. So he got out a map, found the whitest towns in the USA — and moved in. In this funny, honest, human talk, he shares what he learned as a black man in Whitopia. WATCH A VIDEO OF THIS TALK HERE

SIS, 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 these groups suggests new strategies for ending the violence.

Alaa Murabit's family moved from Canada to Libya when she was 15. Before, she’d felt equal to her brothers, but in this new environment she sensed big prohibitions on what she could accomplish. As a proud Muslim woman, she wondered: was this really religious doctrine? With humor, passion and a refreshingly rebellious spirt, she shares how she discovered examples of female leaders from across the history of her faith — and how she launched a campaign to fight for women's rights using verses directly from the Koran.

Abortion is extremely common. In America, for example, one in three women will have an abortion in their lifetime, yet the strong emotions sparked by the topic — and the highly politicized rhetoric around it — leave little room for thoughtful, open debate. In this personal, thoughtful talk, Aspen Baker makes the case for being neither “pro-life” nor “pro-choice” but rather "pro-voice" — and for the roles that listening and storytelling can play when it comes to discussing difficult topics. WATCH A VIDEO OF THIS TALK HERE

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 to marry before turning 18. She pushed on to the national level … with incredible results for girls across Malawi. WATCH A VIDEO OF THIS TALK HERE

What really causes addiction — to everything from cocaine to smart-phones? And how can we overcome it? Johann Hari has seen our current methods fail firsthand, as he has watched loved ones struggle to manage their addictions. He started to wonder why we treat addicts the way we do — and if there might be a better way. As he shares in this deeply personal talk, his questions took him around the world, and unearthed some surprising and hopeful ways of thinking about an age-old problem. WATCH A VIDEO OF THIS TALK HERE

Jimmy Carter: 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.” WATCH A VIDEO OF THIS TALK HERE

Penicillin changed everything. Infections that had previously killed were suddenly quickly curable. Yet as Maryn McKenna shares in this sobering talk, we've squandered the advantages afforded us by that and later antibiotics. Drug-resistant bacteria mean we're entering a post-antibiotic world — and it won't be pretty. There are, however, things we can do ... if we start right now. Watch a video of this talk here

There's an organization responsible for more terrorism plots in the United States than al-Qaeda, al-Shabaab and ISIS combined: The FBI. How? Why? In an eye-opening talk, investigative journalist Trevor Aaronson reveals a disturbing FBI practice that breeds terrorist plots by exploiting Muslim-Americans with mental health problems. Watch a video of this talk here

Unconscious bias is a prevalent factor driving culture, causing us all to make assumptions based on our own upbringings and influences. Such implicit prejudice affects everything, and it's time for us to be more thoughtful, smarter, better. In this funny, honest talk, Yassmin Abdel-Magied uses a surprising way to challenge us all to look beyond our initial perceptions. Watch a video of this talk here

An architect of the "Boston miracle," Rev. Jeffrey Brown started out as a bewildered young pastor watching his Boston neighborhood fall apart around him, as drugs and gang violence took hold of the kids on the streets. The first step to recovery: Listen to those kids, don't just preach to them, and help them reduce violence in their own neighborhoods. It's a powerful talk about listening to make change. Watch a video of this talk here

Chimpanzees are people too, you know. Ok, not exactly. But lawyer Steven Wise has spent the last 30 years working to change these animals' status from "things" to "persons." It's not a matter of legal semantics; as he describes in this fascinating talk, recognizing that animals like chimps have extraordinary cognitive capabilities and rethinking the way we treat them — legally — is no less than a moral duty. Watch a video of this talk here

Pamela Ronald studies the genes that make plants more resistant to disease and stress. In an eye-opening talk, she describes her decade-long quest to help create a variety of rice that can survive prolonged flooding. She shows how the genetic improvement of seeds saved the Hawaiian papaya crop in the 1950s — and makes the case that it may simply be the most effective way to enhance food security for our planet’s growing population. Watch a video of this talk here

In the United States, two institutions guide teenagers on the journey to adulthood: college and prison. Sociologist Alice Goffman spent six years in a troubled Philadelphia neighborhood and saw first-hand how teenagers of African-American and Latino backgrounds are funneled down the path to prison — sometimes starting with relatively minor infractions. In an impassioned talk she asks, “Why are we offering only handcuffs and jail time?” Watch a video of this talk here

Collective compassion has meant an overall decrease in global poverty since the 1980s, says civil rights lawyer Gary Haugen. Yet for all the world's aid money, there's a pervasive hidden problem keeping poverty alive. Haugen reveals the dark underlying cause we must recognize and act on now. Watch a video of this talk here

Photojournalist Barat Ali Batoor was living in Afghanistan — until his risky work forced him to leave the country. But for Batoor, a member of a displaced ethnic group called the Hazara, moving home to Pakistan proved dangerous too. And finding a safer place wasn't as simple as buying a plane ticket. Instead, he was forced to pay a human smuggler, and join the deadly tidal wave of migrants seeking asylum by boat. He documents the harrowing ocean trip with powerful photographs. Watch a video of this talk here

The news of society's growing inequality makes all of us uneasy. But why? Dan Ariely reveals some new, surprising research on what we think is fair, as far as how wealth is distributed over societies ... then shows how it stacks up to the real stats. Watch a video of this talk

The former prime minister of Australia, Kevin Rudd is also a longtime student of China, with a unique vantage point to watch its power rise in the past few decades. He asks whether the growing ambition of China will inevitably lead to conflict with other major powers — and suggests another narrative. Watch a video of this talk

In 2014, the world avoided a horrific global outbreak of Ebola, thanks to thousands of selfless health workers — plus, frankly, thanks to some very good luck. In hindsight, we know what we should have done better. So, now's the time, Bill Gates suggests, to put all our good ideas into practice, from scenario planning to vaccine research to health worker training. As he says, "There's no need to panic ... but we need to get going." Watch a video of this talk

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 work today. Since 2000, attacks on humanitarian aid workers have tripled — and he wonders what that rise may signal to the world. Watch a video of this talk

As a teenager, Ismael Nazario was sent to New York’s Rikers Island jail, where he spent 300 days in solitary confinement — all before he was ever convicted of a crime. Now as a prison reform advocate he works to change the culture of American jails and prisons, where young people are frequently subjected to violence beyond imagination. Nazario tells his chilling story and suggests ways to help, rather than harm, teens in jail. Watch a video of this talk

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 took a fearless stand against the status quo. Watch a video of this talk

Fifty-three years ago, James A. White Sr. joined the US Air Force. But as an African American man, he had to go to shocking lengths to find a place for his young family to live nearby. He tells this powerful story about the lived experience of "everyday racism" — and how it echoes today in the way he's had to teach his grandchildren to interact with police. Watch a video of this talk

“Ebola threatens everything that makes us human,” says Bruce Aylward of the World Health Organization. With calm measure, he walks us through how the Ebola epidemic exploded — and how international alarm only fed the exponential growth of the problem. He shares four strategies critical to beating Ebola — and how they are succeeding, starting in Lofa County, Liberia, which was at the center of the outbreak but where no new case has been registered in weeks. The fight against Ebola is not won, he underscores, but if we do things right, we can look optimistically at our ability to fight back against epidemics. Watch a video of this talk

Severine Autesserre studies the Democratic Republic of Congo, which is in the middle of the deadliest conflict since World War II; it's been called "the largest ongoing humanitarian crisis in the world.” The conflict seems hopelessly, unsolvably large. But her insight from decades of listening and engaging: The conflicts are often locally based. And instead of focusing on solutions that scale to a national level, leaders and aid groups might be better served solving local crises before they ignite. Watch a video of this talk

Khadija Gbla grew up caught between two definitions of what it means to be an “empowered woman.” While her Sierra Leonean mother thought that circumsizing her — and thus stifling her sexual urges — was the ultimate form of empowerment, her culture as a teenager in Australia told her that she deserved pleasure and that what happened to her was called “female genital mutilation.” In a candid and funny talk, she shares what it was like to make her way in a “clitoris-centric society,” and how she works to make sure other women don’t have to figure this out. (Warning: This talk contains hard-to-hear details.) Watch the video of this talk

Severine Autesserre studies the Democratic Republic of Congo, which is in the middle of the deadliest conflict since World War II; it's been called "the largest ongoing humanitarian crisis in the world.” The conflict seems hopelessly, unsolvably large. But her insight from decades of listening and engaging: The conflicts are often locally based. And instead of focusing on solutions that scale to a national level, leaders and aid groups might be better served solving local crises before they ignite. Watch a video of this talk

What is altruism? Put simply, it's the wish that other people may be happy. And, says Matthieu Ricard, a happiness researcher and a Buddhist monk, altruism is also a great lens for making decisions, both for the short and long term, in work and in life. Watch a video of this talk

Worldwide, violence is on the decline, but in the crowded cities of the global south — cities like Aleppo, Bamako and Caracas — violence is actually accelerating, fueled by the drug trade, mass unemployment and civil unrest. Security researcher Robert Muggah turns our attention toward these “fragile cities,” super-fast-growing places where infrastructure is weak and government often ineffective. He shows us the four big risks we face, and offers a way to change course. Watch a video of this talk

2041 will be a pivotal year for our planet. That year will mark the end of a 50-year agreement to keep Antarctica, the Earth’s last pristine continent, free of exploitation. Explorer Robert Swan — the first person to walk both the North and South Poles — is on a mission to ensure that we extend that treaty. With passion and vigor, he pleads with us to choose the preservation of the Antarctic for our own survival. Watch a video of this talk

In Guatemala’s 36-year conflict, 200,000 civilians were killed — and more than 40,000 were never identified. Pioneering forensic anthropologist 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. Watch a video of this talk

Aziz Abu Sarah is a Palestinian activist with an unusual approach to peace-keeping: Be a tourist. The TED Fellow shows how simple interactions with people in different cultures can erode decades of hate. He starts with Palestinians visiting Israelis and moves beyond ... Watch a video of this talk

Whales have a surprising and important job, says marine biologist Asha de Vos: these massive creatures are ecosystem engineers, keeping the oceans healthy and stable by ... well, by pooping, for a start. Learn from de Vos, a TED Fellow, about the undervalued work that whales do to help maintain the stability and health of our seas — and our planet. Watch a video of this talk

Our biases can be dangerous, even deadly — as we've seen in the cases of Michael Brown in Ferguson, Missouri, and Eric Garner, in Staten Island, New York. Diversity advocate Verna Myers looks closely at some of the subconscious attitudes we hold toward out-groups. She makes a plea to all people: Acknowledge your biases. Then move toward, not away from, the groups that make you uncomfortable. In a funny, impassioned, important talk, she shows us how. Watch a video of this talk

In Brazil, "catadores" collect junk and recyclables. But while they provide a vital service that benefits all, they are nearly invisible as they roam the streets. Enter graffiti artist Mundano, a TED Fellow. In a spirited talk, he describes his project "Pimp My Carroça," which has transformed these heroic workers' carts into things of beauty and infused them with a sense of humor. It's a movement that is going global. Watch a video of this talk

“Men fight wars, and women mourn them,” says documentary photographer Anastasia Taylor-Lind. With stark, arresting images from the Maidan protests in Ukraine, the TED Fellow shows us intimate faces from the revolution. A grim and beautiful talk. Watch a video of this talk

Colombia is a country of exceptional beauty and promise, and it’s also a country where the F.A.R.C. guerrilla movement has incited violence for 50 years. “In my lifetime, I have never lived one day of peace in my country,” says Jose Miguel Sokoloff. This ad executive and his team saw an opportunity to sway guerrillas' hearts and minds with Christmas trees and personalized messages strategically placed throughout the jungle. A look at the creative messages that have led thousands of guerrillas to abandon the war, and the key insights behind these surprising tactics. Watch a video of this talk.

What do you call a veterinarian that can only take care of one species? A physician. In a fascinating talk, Barbara Natterson-Horowitz shares how a species-spanning approach to health can improve medical care of the human animal — particularly when it comes to mental health. Watch a video of this talk

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. Watch a video of this talk

"The greatest and most endangered species in the Amazon rainforest is not the jaguar or the harpy eagle," says Mark Plotkin, "It's the isolated and uncontacted tribes." In an energetic and sobering talk, the ethnobotanist brings us into the world of the forest's indigenous tribes and the incredible medicinal plants that their shamans use to heal. He outlines the challenges and perils that are endangering them — and their wisdom — and urges us to protect this irreplaceable repository of knowledge. Watch a video of this talk

Is the War on Drugs doing more harm than good? In a bold talk, drug policy reformist Ethan Nadelmann makes an impassioned plea to end the "backward, heartless, disastrous" movement to stamp out the drug trade. He gives two big reasons we should focus on intelligent regulation instead. A video of this talk

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 1920s. 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 dimensions that actually matter. And reveals the dramatic reordering of nations that occurs when you use it. A video of this talk

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) to think of antibiotics — and their ongoing effectiveness — as a finite resource, and to think twice before we tap into it. It’s a sobering look at how global medical trends can strike home. A video of this talk

Nature photographer Frans Lanting uses vibrant images to take us deep into the animal world. In this short, visual talk he calls for us to reconnect with other earthly creatures, and to shed the metaphorical skins that separate us from each other. A video of this talk

Every human deserves protection under their country’s laws — even when that law is forgotten or ignored. Sharing three cases from her international legal practice, Kimberley Motley, an American litigator practicing in Afghanistan and elsewhere, shows how a country’s own laws can bring both justice and “justness”: using the law for its intended purpose, to protect. A video of this talk

Technology allows us to give cash directly to the poorest people on the planet. Should we do it? In this thought-provoking talk, veteran aid worker Joy Sun explores two ways to help the poor. A video of this talk

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 camps are healing places where people can develop the skills they’ll need to rebuild their hometowns. A video of this talk

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 local, sustainable entrepreneurship. A video of this talk

Pia Mancini and her colleagues want to upgrade democracy in Argentina and beyond. Through their open-source mobile platform they want to bring citizens inside the legislative process, and run candidates who will listen to what they say. A video of this talk

About 10,000 people a month Google the phrase, “Am I ugly?” Meaghan Ramsey of the Dove Self-Esteem Project has a feeling that many of them are young girls. In a deeply unsettling talk, she walks us through the surprising impacts of low body and image confidence—from lower grade point averages to greater risk-taking with drugs and alcohol. And then shares the keys things all of us can to disrupt this reality. A video of this talk

Big problems need big solutions, sparked by big ideas, imagination and audacity. In this talk, journalist Gail Reed profiles one big solution worth noting: Havana’s Latin American Medical School, which trains global physicians to serve the local communities that need them most. A video of this talk

Warning: This talk might contain much more than you’d ever want to know about the way the world poops. But as sanitation activist (and TED Fellow) Francis de los Reyes asks — doesn’t everyone deserve a safe place to go? A video of this talk

Rishi Manchanda has worked as a doctor in South Central Los Angeles for a decade, where he’s come to realize: His job isn’t just about treating a patient’s symptoms, but about getting to the root cause of what is making them ill—the “upstream" factors like a poor diet, a stressful job, a lack of fresh air. It’s a powerful call for doctors to pay attention to a patient's life outside the exam room. A video of this talk

How much do you know about the world? Hans Rosling, with his famous charts of global population, health and income data (and an extra-extra-long pointer), demonstrates that you have a high statistical chance of being quite wrong about what you think you know. Play along with his audience quiz — then, from Hans’ son Ola, learn 4 ways to quickly get less ignorant. A video of this talk

Across sub-Saharan Africa, small farmers are the bedrock of national and regional economies—unless the weather proves unpredictable and their crops fail. The solution is insurance, at a vast, continental scale, and at a very low, affordable cost. Rose Goslinga, a citizen of Kenya, and her team pioneered an unconventional way to give farmers whose crops fail early a second chance at a growing season. A video of this talk

This talk begins with a personal story of sexual violence that may be difficult to listen to. But that’s the point, says citizen journalist Meera Vijayann: Speaking out on tough, taboo topics is the spark for change. Vijayann uses digital media to speak honestly about her experience of gender violence in her home country of India — and calls on others to speak out too. A video of this talk

Across sub-Saharan Africa, small farmers are the bedrock of national and regional economies—unless the weather proves unpredictable and their crops fail. The solution is insurance, at a vast, continental scale, and at a very low, affordable cost. Rose Goslinga, a citizen of Kenya, and her team pioneered an unconventional way to give farmers whose crops fail early a second chance at a growing season. A video of this talk

A post-apocalyptic Earth, emptied of humans, seems like the stuff of science fiction TV and movies. But in this short, surprising talk, Lord Martin Rees asks us to think about our real existential risks — natural and human-made threats that could wipe out humanity. As a concerned member of the human race, he asks: What’s the worst thing that could possibly happen? A video of this talk

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? A video of this talk

"We spend so much time listening to the things people are saying that we rarely pay attention to the things they don't," says slam poet and teacher Clint Smith. A short, powerful piece from the heart, about finding the courage to speak up against ignorance and injustice. A video of this talk

Far too many Americans are illiterate in power — what it is, how it operates and why some people have it. As a result, those few who do understand power wield disproportionate influence over everyone else. “We need to make civics sexy again,” says civics educator Eric Liu. “As sexy as it was during the American Revolution or the Civil Rights Movement.” A video of this talk

In the United States, the agencies that govern prisons are often called ‘Department of Corrections.’ And yet, their focus is on containing and controlling inmates. Dan Pacholke, Deputy Secretary for the Washington State Department of Corrections, shares a different vision: of prisons that provide humane living conditions as well as opportunities for meaningful work and learning. A video of this talk

Tour the deep dark world of the East German state security agency known as Stasi. Uniquely powerful at spying on its citizens, until the fall of the Berlin Wall in 1989 the Stasi masterminded a system of surveillance and psychological pressure that kept the country under control for decades. Hubertus Knabe studies the Stasi — and was spied on by them. He shares stunning details from the fall of a surveillance state, and shows how easy it was for neighbor to turn on neighbor. A video of this talk

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. A video of this talk

When he was young, artist Shih Chieh Huang loved taking toys apart and perusing the aisles of night markets in Taiwan for unexpected objects. Today, this TED Fellow creates madcap sculptures that seem to have a life of their own—with eyes that blink, tentacles that unfurl and parts that light up like bioluminescent sea creatures. A video of this talk

Wes Moore joined the US Army to pay for college, but the experience became core to who he is. In this heartfelt talk, the paratrooper and captain—who went on to write "The Other Wes Moore"—explains the shock of returning home from Afghanistan. He shares the single phrase he heard from civilians on repeat, and shows why it's just not sufficient. It's a call for all of us to ask veterans to tell their stories — and listen. A video of this talk

Civilians don't miss war. But soldiers often do. Journalist Sebastian Junger shares his experience embedded with American soldiers at Restrepo, an outpost in Afghanistan's Korengal Valley that saw heavy combat. Giving a look at the "altered state of mind" that comes with war, he shows how combat gives soldiers an intense experience of connection. In the end, could it actually be "the opposite of war" that soldiers miss? A video of this talk

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 riveting and funny talk, he answers the question, "Which country does the most good?" The answer may surprise you (especially if you live in the US or China). A video of this talk

When he was a child, George Takei and his family were forced into an internment camp for Japanese-Americans, as a "security" measure during World War II. 70 years later, Takei looks back at how the camp shaped his surprising, personal definition of patriotism and democracy. A video of this talk

Plenty of good things are done in the name of religion, and plenty of bad things too. But what is religion, exactly — is it good or bad, in and of itself? Philosopher Kwame Anthony Appiah offers a generous, surprising view. A video of this talk

In 2002, investigative journalist and TED Fellow Will Potter decided to take a break from his regular beat, writing about shootings and murders for the Chicago Tribune. He went to help a local group campaigning against animal testing: "I thought it would be a safe way to do something positive," he says. Instead, he was arrested, and so began his ongoing journey into a world in which peaceful protest is branded as terrorism. A video of this talk

As a member of both the African American and LGBT communities, filmmaker Yoruba Richen is fascinated with the overlaps and tensions between the gay rights and the civil rights movements. She explores how the two struggles intertwine and propel each other forward — and, in an unmissable argument, she dispels a myth about their points of conflict. A powerful reminder that we all have a stake in equality. A video of this talk

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. A video of this talk

In 1902, President Theodore Roosevelt legendarily spared the life of a black bear — and prompted a plush toy craze for so-called "teddy bears." Writer Jon Mooallem digs into this story and asks us to consider how the tales we tell about wild animals have real consequences for a species' chance of survival — and the natural world at large. A video of this talk

What's a marine biologist doing talking about world hunger? Well, says Jackie Savitz, fixing the world's oceans might just help to feed the planet's billion hungriest people. In an eye-opening talk, Savitz tells us what's really going on in our global fisheries right now — it's not good — and offers smart suggestions of how we can help them heal, while making more food for all. A video of this talk

When General Stanley McChrystal started fighting al Qaeda in 2003, information and secrets were the lifeblood of his operations. But as the unconventional battle waged on, he began to think that the culture of keeping important information classified was misguided and actually counterproductive. In a short but powerful talk McChrystal makes the case for actively sharing knowledge. A video of this talk

You can't understand climate change in pieces, says climate scientist Gavin Schmidt. It's the whole, or it's nothing. In this illuminating talk, he explains how he studies the big picture of climate change with mesmerizing models that illustrate the endlessly complex interactions of small-scale environmental events. A video of this talk

Perhaps you’ve punched out a paper doll or folded an origami swan? TED Fellow Manu Prakash and his team have created a microscope made of paper that's just as easy to fold and use. A sparkling demo that shows how this invention could revolutionize healthcare in developing countries … and turn almost anything into a fun, hands-on science experiment. A video of this talk

During the financial crisis, the central banks of the United States, United Kingdom and Japan created $3.7 trillion in order to buy assets and encourage investors to do the same. Michael Metcalfe offers a shocking idea: could these same central banks print money to ensure they stay on track with their goals for global aid? Without risking inflation? A video of this talk

Hacking is about more than mischief-making or political subversion. As Catherine Bracy describes in this spirited talk, it can be just as much a force for good as it is for evil. She spins through some inspiring civically-minded projects in Honolulu, Oakland and Mexico City — and makes a compelling case that we all have what it takes to get involved. A video of this talk

In this thoughtful talk, David Puttnam asks a big question about the media: Does it have a moral imperative to create informed citizens, or is it free to pursue profit by any means, just like any other business? His solution for balancing profit and responsibility is bold ... and you might not agree. (Filmed at TEDxHousesofParliament.) A video of this talk

When Esta Soler lobbied for a bill outlawing domestic violence in 1984, one politician called it the "Take the Fun Out of Marriage Act." "If only I had Twitter then," she mused. This sweeping, optimistic talk charts 30 years of tactics and technologies -- from the Polaroid camera to social media -- that led to a 64% drop in domestic violence in the U.S. A video of this talk

When she became the attorney general of New Jersey in 2007, Anne Milgram quickly discovered a few startling facts: not only did her team not really know who they were putting in jail, but they had no way of understanding if their decisions were actually making the public safer. And so began her ongoing, inspirational quest to bring data analytics and statistical analysis to the US criminal justice system. A video of this talk

Every cell in the human body has a sex, which means that men and women are different right down to the cellular level. Yet too often, research and medicine ignore this insight -- and the often startlingly different ways in which the two sexes respond to disease or treatment. As pioneering doctor Paula Johnson describes in this thought-provoking talk, lumping everyone in together means we essentially leave women's health to chance. It's time to rethink. A video of this talk

Oklahoma City is a midsized town that had a big problem: It was among the most obese towns in America. Mayor Mick Cornett realized that, to make his city a great place to work and live, it had to become healthier too. In this charming talk, he walks us through the interlocking changes that helped OKC drop a collective million pounds (450,000 kilos). A video of this talk

Almost everything we own and use, at some point, travels to us by container ship, through a vast network of ocean routes and ports that most of us know almost nothing about. Journalist Rose George tours us through the world of shipping, the underpinning of consumer civilization. A video of this talk

It's time for liberals and conservatives to transcend their political differences and really listen to each other, says political pundit Sally Kohn. In this optimistic talk, Kohn shares what she learned as a progressive lesbian talking head on Fox News. It’s not about political correctness, she says, but rather, emotional correctness. A video of this talk

Ecologist Lian Pin Koh makes a persuasive case for using drones to protect the world's forests and wildlife. These lightweight autonomous flying vehicles can track animals in their natural habitat, monitor the health of rainforests, even combat crime by detecting poachers via thermal imaging. Added bonus? They're also entirely affordable. A video of this talk

Different hospitals produce different results on different procedures. Only, patients don’t know that data, making choosing a surgeon a high-stakes guessing game. Stefan Larsson looks at what happens when doctors measure and share their outcomes on hip replacement surgery, for example, to see which techniques are proving the most effective. Could health care get better -- and cheaper -- if doctors learn from each other in a continuous feedback loop? (Filmed at TED@BCG.) www.youtube.com

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 ambitious. A video of this talk

The developed world holds up the ideals of capitalism, democracy and political rights for all. Those in emerging markets often don't have that luxury. In this powerful talk, economist Dambisa Moyo makes the case that the west can't afford to rest on its laurels and imagine others will blindly follow. Instead, a different model, embodied by China, is increasingly appealing. A call for open-minded political and economic cooperation in the name of transforming the world. A video of this talk

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 other but is rather the result of some seriously sophisticated brand management. A video of this talk

Chernobyl was the site of the world's worst nuclear accident and, for the past 27 years, the area around the plant has been known as the Exclusion Zone. And yet, a community of about 200 people live there -- almost all of them elderly women. These proud grandmas defied orders to relocate because their connection to their homeland and to their community are "forces that rival even radiation." A video of this talk

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 and practices -- both internally and to worldwide customers -- and lays a challenge for other global giants. A video of this talk

Physician Gary Slutkin spent a decade fighting tuberculosis, cholera and AIDS epidemics in Africa. When he returned to the United States, he thought he'd escape brutal epidemic deaths. But then he began to look more carefully at gun violence, noting that its spread followed the patterns of infectious diseases. A mind-flipping look at a problem that too many communities have accepted as a given. We've reversed the impact of so many diseases, says Slutkin, and we can do the same with violence. (Filmed at TEDMED.) A video of this talk

In Tana Toraja, weddings and births aren’t the social gatherings that knit society together. In this part of Indonesia, big, raucous funerals form the center of social life. Anthropologist Kelli Swazey takes a look at this culture, in which the bodies of dead relatives are cared for even years after they have passed. While it sounds strange to Western sensibilities, she says, this could actually be a truer reflection of the fact that relationships with loved ones don’t simply end when breathing does. (Filmed at TEDMED.) A video of this talk

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.) A video of this talk

It often seems like federal-level politicians care more about creating gridlock than solving the world's problems. So who's actually getting bold things done? City mayors. So, political theorist Benjamin Barber suggests: Let's give them more control over global policy. Barber shows how these "urban homeboys" are solving pressing problems on their own turf -- and maybe in the world. A video of this talk

Honeybees have thrived for 50 million years, each colony 40 to 50,000 individuals coordinated in amazing harmony. So why, seven years ago, did colonies start dying en masse? Marla Spivak reveals four reasons which are interacting with tragic consequences. This is not simply a problem because bees pollinate a third of the world’s crops. Could this incredible species be holding up a mirror for us? A video of this talk

We’ve known how to cure malaria since the 1600s, so why does the disease still kill hundreds of thousands every year? It’s more than just a problem of medicine, says journalist Sonia Shah. A look into the history of malaria reveals three big-picture challenges to its eradication. A video of this talk

In Lebanon there is one gunshot a year that isn’t part of a scene of routine violence: The opening sound of the Beirut International Marathon. In a moving talk, marathon founder May El-Khalil explains why she believed a 26.2-mile running event could bring together a country divided for decades by politics and religion, even if for one day a year. A video of this talk.

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 Heffernan demonstrates the danger of "willful blindness" and praises ordinary people like Benefield who are willing to speak up. (Filmed at TEDxDanubia.) A video of this talk.

As a young EMT on a Jerusalem ambulance, Eli Beer realized that, stuck in brutal urban traffic, they often arrived too late to help. So he organized a group of volunteer EMTs -- many on foot -- ready to drop everything and dash to save lives in their neighborhood. Today, United Hatzlah uses a smartphone app and a fleet of “ambucycles” to help nearby patients until an ambulance arrives. With an average response time of 3 minutes, last year, they treated 207,000 people in Israel. And the idea is going global. A video of this talk

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 surprisingly familiar faces. A video of this talk

Collecting global health data was an imperfect science: Workers tramped through villages to knock on doors and ask questions, wrote the answers on paper forms, then input the data -- and from this gappy information, countries would make huge decisions. Data geek Joel Selanikio talks through the sea change in collecting health data in the past decade -- starting with the Palm Pilot and Hotmail, and now moving into the cloud. (Filmed at TEDxAustin.) A video of this talk

It's a standard assumption in the West: As a society progresses, it eventually becomes a capitalist, multi-party democracy. Right? Eric X. Li, a Chinese investor and political scientist, begs to differ. In this provocative, boundary-pushing talk, he asks his audience to consider that there's more than one way to run a successful modern nation. A video of this talk

As a young surgeon, Peter Attia felt contempt for a patient with diabetes. She was overweight, he thought, and thus responsible for the fact that she needed a foot amputation. But years later, Attia received an unpleasant medical surprise that led him to wonder: is our understanding of diabetes right? Could the precursors to diabetes cause obesity, and not the other way around? A look at how assumptions may be leading us to wage the wrong medical war. A video of this talk

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 -- and an end to fundamentalism of all kinds. A video of this talk

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 organization he now runs to help reduce poverty--through practical design fixes--in Australia and beyond. (Filmed at TEDxSydney.) A video of this talk

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? Have citizens re-engage more directly in a new democratic bargain. A video of this talk

As a novelist, Daniel Suarez spins dystopian tales of the future. But on the TEDGlobal stage, he talks us through a real-life scenario we all need to know more about: the rise of autonomous robotic weapons of war. Advanced drones, automated weapons and AI-powered intelligence-gathering tools, he suggests, could take the decision to make war out of the hands of humans. A video of this talk

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. A video of this talk

Domestic violence and sexual abuse are often called "women’s issues.” But in this bold, blunt talk, Jackson Katz points out that these are intrinsically men’s issues -- and shows how these violent behaviors are tied to definitions of manhood. A clarion call for us all -- women and men -- to call out unacceptable behavior and be leaders of change. A video of this talk

Thinking about death is frightening, but planning ahead is practical and leaves more room for peace of mind in our final days. In a solemn, thoughtful talk, Judy MacDonald Johnston shares 5 practices for planning for a good end of life. A video of this talk

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 latest work, Genesis, which documents the world's forgotten people and places. A video of this talk

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 Brynjolfsson. A video of this talk

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. A video of this talk

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 issues a rallying bipartisan cry that will resonate with many in the U.S. and beyond. A video of this talk

“Desertification is a fancy word for land that is turning to desert,” begins Allan Savory in this quietly powerful talk. And terrifyingly, it's happening to about two-thirds of the world’s grasslands, accelerating climate change and causing traditional grazing societies to descend into social chaos. Savory has devoted his life to stopping it. He now believes -- and his work so far shows -- that a surprising factor can protect grasslands and even reclaim degraded land that was once desert A video of this talk

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?

Trinidad and Tobago amassed great wealth in the 1970s thanks to oil. But in 1982, a shocking fact was revealed -- that 2 out of every 3 dollars earmarked for development had been wasted or stolen. This has haunted Afra Raymond for 30 years. Shining a flashlight on a continued history of government corruption, Raymond gives us a reframing of financial crime. (Filmed at TEDxPortofSpain.) A video ot this talk

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 story of one brave father who stood up to local threats. (Filmed at TEDxWomen)

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.) A video of this talk

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 anti retrovirals. Boghuma Kabisen Titanji asks an important question: how can researchers looking for a cure make sure they’re not taking advantage of those most affected by the pandemic? A video of this talk

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 left wing, some of the right -- and suggests how both wings could work together productively to benefit humanity as a whole. A video of this talk

When war between Israel and Iran seemed imminent, Israeli graphic designer Ronny Edry shared a poster on Facebook of himself and his daughter with a bold message: "Iranians ... we [heart] you." Other Israelis quickly created their own posters with the same message -- and Iranians responded in kind. The simple act of communication inspired surprising Facebook communities like "Israel loves Iran," "Iran loves Israel" and even "Palestine loves Israel." A video of this talk

By the end of this talk, there will be 864 more hours of video on YouTube and 2.5 million more photos on Facebook and Instagram. So how do we sort through the deluge? At the TEDSalon in London, Markham Nolan shares the investigative techniques he and his team use to verify information in real-time, to let you know if that Statue of Liberty image has been doctored or if that video leaked from Syria is legitimate. A video of this talk

Patenting a new drug helps finance its immense cost to develop -- but that same patent can put advanced treatments out of reach for sick people in developing nations, at deadly cost. Ellen 't Hoen talks about an elegant, working solution to the problem: the Medicines Patent Pool. (Filmed at TEDxZurich.) A video of this talk