TED is a nonprofit devoted to ideas worth spreading. On this video feed, you'll find TED Talks to inspire, intrigue and stir the imagination from some of the world's leading thinkers and doers, speaking from the stage at TED conferences, TEDx events and partner events around the world. This podcast is also available in high-def video and audio-only formats.
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Driving in Johannesburg one day, Tapiwa Chiwewe noticed an enormous cloud of air pollution hanging over the city. He was curious and concerned but not an environmental expert -- so he did some research and discovered that nearly 14 percent of all deaths worldwide in 2012 were caused by household and ambient air pollution. With this knowledge and an urge to do something about it, Chiwewe and his colleagues developed a platform that uncovers trends in pollution and helps city planners make better decisions. "Sometimes just one fresh perspective, one new skill set, can make the conditions right for something remarkable to happen," Chiwewe says. "But you need to be bold enough to try."
The prevailing image of where refugees live is of temporary camps in isolated areas -- but in reality, nearly 60 percent of them worldwide end up in urban areas. TED Fellow Robert Hakiza takes us inside the lives of urban refugees -- and shows us how organizations like the one that he started can provide them with the skills they need to ultimately become self-sufficient.
From our fear of women's bodies to our sheepishness around the word "nipple," our ideas about sex need an upgrade, say sex educators (and hilarious women) Tiffany Kagure Mugo and Siphumeze Khundayi. For a radical new take on sex positivity, the duo take the TED stage to suggest we look to Africa for erotic wisdom both ancient and modern, showing us how we can shake off problematic ideas about sex we've internalized and re-define pleasure on our own terms. (This talk contains mature content.)
Every three years, more than 30 million Hindu worshippers gather for the Kumbh Mela in India, the world's largest religious gathering, in order to wash away their sins. With massive crowds descending on small cities and towns, stampedes inevitably happen, and in 2003, 39 people were killed during the festival. In 2014, then 15-year-old Nilay Kulkarni decided to put his skills as a self-taught programmer to use by building a tech solution to help prevent stampedes. Learn more about his invention -- and how it helped the 2015 Nashik Kumbh Mela have zero stampedes and casualties.
If we hope to heal the racial tensions that threaten to tear the fabric of society apart, we're going to need the skills to openly express ourselves in racially stressful situations. Through racial literacy -- the ability to read, recast and resolve these situations -- psychologist Howard C. Stevenson helps children and parents reduce and manage stress and trauma. In this inspiring, quietly awesome talk, learn more about how this approach to decoding racial threat can help youth build confidence and stand up for themselves in productive ways.
As a research scientist at Google, Margaret Mitchell helps develop computers that can communicate about what they see and understand. She tells a cautionary tale about the gaps, blind spots and biases we subconsciously encode into AI -- and asks us to consider what the technology we create today will mean for tomorrow. "All that we see now is a snapshot in the evolution of artificial intelligence," Mitchell says. "If we want AI to evolve in a way that helps humans, then we need to define the goals and strategies that enable that path now."
Very few of us hold jobs that line up directly with our past experiences or what we studied in college. Take TED Resident Jason Shen; he studied biology but later became a product manager at a tech company. In this quick, insightful talk about human potential, Shen shares some new thinking on how job seekers can make themselves more attractive -- and why employers should look for ability over credentials.
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.
We often find ourselves stuck in narrow social circles with similar people. What habits confine us, and how can we break them? Organizational psychologist Tanya Menon considers how we can be more intentional about expanding our social universes -- and how it can lead to new ideas and opportunities.
"To be African is to be inspired by culture and to be filled with undying hope for the future," says designer and TED Fellow Walé Oyéjidé. With his label Ikiré Jones (you'll see their work in Marvel's "Black Panther"), he uses classic design to showcase the elegance and grace of often-marginalized groups, in beautifully cut clothing that tells a story.
What happens to the clothes we don't buy? You might think that last season's coats, trousers and turtlenecks end up being put to use, but most of it (nearly 13 million tons each year in the United States alone) ends up in landfills. Fashion has a waste problem, and Amit Kalra wants to fix it. He shares some creative ways the industry can evolve to be more conscientious about the environment -- and gain a competitive advantage at the same time.
Dixon Chibanda is one of 12 psychiatrists in Zimbabwe -- for a population of more than 16 million. Realizing that his country would never be able to scale traditional methods of treating those with mental health issues, Chibanda helped to develop a beautiful solution powered by a limitless resource: grandmothers. In this extraordinary, inspirational talk, learn more about the friendship bench program, which trains grandmothers in evidence-based talk therapy and brings care, and hope, to those in need.
What is it about unfairness? Whether it's not being invited to a friend's wedding or getting penalized for bad luck or an honest mistake, unfairness often makes us so upset that we can't think straight. And it's not just a personal issue -- it's also bad for business, says Marco Alverà. He explains how his company works to create a culture of fairness -- and how tapping into our innate sense of what's right and wrong makes for happier employees and better results.
The hymen is still the most misunderstood part of the female body. Nina Dølvik Brochmann and Ellen Støkken Dahl share their mission to empower young people through better sex education, debunking the popular (and harmful) myths we're told about female virginity and the hymen.
Bhu Srinivasan researches the intersection of capitalism and technological progress. Instead of thinking about capitalism as a firm, unchanging ideology, he suggests that we should think of it as an operating system -- one that needs upgrades to keep up with innovation, like the impending take-off of drone delivery services. Learn more about the past and future of the free market (and a potential coming identity crisis for the United States' version of capitalism) with this quick, forward-thinking talk.
What's the antidote to rising nationalism, polarization and hate? In this inspiring, poetic talk, Valarie Kaur asks us to reclaim love as a revolutionary act. As she journeys from the birthing room to tragic sites of bloodshed, Kaur shows us how the choice to love can be a force for justice.
Blues musician Tito Deler combines the sounds of his New York upbringing with the style of pre-war Mississippi Delta blues. He takes the stage, singing and strumming a stirring rendition of his song, "My Fine Reward."
Mohamad Jebara loves mathematics -- but he's concerned that too many students grow up thinking that this beautiful, rewarding subject is difficult and boring. His company is experimenting with a bold idea: paying students for completing weekly math homework. He explores the ethics of this model and how it's helping students -- and why learning math is crucial in the era of fake news.
The democratic process is messy, complicated and often inefficient -- but across Africa, activists are redefining democracy by putting protest at its center. In an illuminating talk, political scientist Zachariah Mampilly gives us a primer on the current wave of protests reshaping countries like Tunisia, Malawi and Zimbabwe -- and explains how this form of political dissension expands our political imaginations beyond what we're told is possible.
If architect and writer John Cary has his way, women will never need to stand in pointlessly long bathroom lines again. Lines like these are representative of a more serious issue, Cary says: the lack of diversity in design that leads to thoughtless, compassionless spaces. Design has a unique ability to dignify and make people feel valued, respected, honored and seen -- but the flip side is also true. Cary calls for architects and designers to expand their ranks and commit to serving the public good, not just the privileged few. "Well-designed spaces are not just a matter of taste or a questions of aesthetics," he says. "They literally shape our ideas about who we are in the world and what we deserve." And we all deserve better.