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.

John Kasaona is a pioneer of community-based conservation -- working with the people who use and live on fragile land to enlist them in protecting it.

About this event: In 2016, we would like to have multiple speakers, who are experts in their respective fields, to come share their take on Ctrl-Alt-Delete in order to share new ideas and perspectives on evaluating current operating systems, terminating the necessary programs and restarting one’s life. As we go through life year by year, we build up an archive of...

About this event: TEDxUniversityofNamibia wishes to broaden our communities views on how we can improve outcomes for a better Africa.

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About this event: Tickets for TEDxWindhoek 2015 #PlayingBeyond now selling at Computicket outlets countrywide and online for N$ 700-00. Students tickets for N$ 200-00 are sold out. A TED-like experience with a line up of 16 live Speakers from multidisciplinary backgrounds presenting in 4 sub theme sessions with 4 speakers each. See speakers list belo...

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About this event: Namibian Leaders, Emerging Thinkers and Innovators takes TEDxWindhoek stage with local ideas worth spreading to unleash potential for their country, continent and world at large.

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Artist Rachel Sussman is obsessed with very old things that are still alive. No, not certain members of the British aristocracy. Things like the Pafuri baobab, a South African tree that is likely at least 2,000 years old -- and requires an armed guard escort to visit. Or the stromatolites of Western Australia, organisms connected to the oxygenat...

Lucy Marcil is providing fiscal services to low-income families in the doctor’s waiting room.

On a typical sunny day in the Amazon, 20 billion metric tons of water flow upward through the trees and pour into the air, an invisible river that flows through the sky across a continent.  “This river of vapor that comes up from the forest and goes into the atmosphere is greater than the Amazon River," says Antonio Donato Nobre (TED Talk: The ...

Richard Turere, 13, grew up hating lions. In Nairobi National Park, where he lives, lions roam freely and often targeted his family’s livestock at night. And yet Turere also hated the only solution his community had come up with to stop lion attacks on cows -- killing the majestic creatures. “I had to find a way of solving this problem,” says...

Sebastião Salgado captures the dignity of the dispossessed through large-scale, long-term projects.

Across the globe, anyone can watch TED Talks through TED.com, our YouTube channel, our mobile apps or our iTunes podcasts. (Have you checked out TED Studies on iTunes U?) Most recently, our new SmartTV app showcases TED in beautiful high definition through television set manufacturers like Samsung and telephone IPTV providers like TELUS, letting...

It's time to nominate someone for the 2015 TED Prize, a $1 million award to a visionary with a great big idea for creating change in the world. Through Monday, March 31, you can nominate a mentor, a hero, a co-worker, even yourself. TED is looking for someone who has not only a great wish, but a track record that suggests they could accompli...

In 2012, the TED Prize was awarded to an idea: The City2.0, a place to celebrate actions taken by citizens around the world to make their cities more livable, beautiful and sustainable. This week, The City2.0 website evolves. On the relaunched TEDCity2.org, you’ll find great talks on topics like housing, education and food, and how they relate t...

Want to take pictures that will make people gasp? Photographer David Yarrow shares his advice on how to avoid the played-out and zoom in on the unexpected. Over his 30-plus years in photography, David Yarrow (TEDxEton Talk: Wild Encounters--the story of what I do differently) has waded through the crocodile-infested Nile, taken a selfie reflect...

In this session, "Lenses," speakers look through cameras and new lenses -- at subjects from the very, very big to the very, very small to the very, very far away. Wendy Freedman talks about a remote location in the Andes, far from the lights of civilization, where the stars can be seen clearly with the naked eye. In that location, by the ...

“The politics of joy” is a phrase that resonates through this session of TED Fellows talks. These talks, by and large, come from people who’ve taken a hard look at the world and its problems and decided to engage joyfully, with creativity, fresh insight and heart. From a soccer project that empowers young refugees, to an SMS service for cow ...

Nigerian-American Nnedi Okorafor writes the kind of drop-everything, Africa-based fantasy and sci-fi that she never saw on bookshelves growing up. Here, she talks about the authors that shaped her, her inspirations (traffic! jellyfish!) and her collaboration with Marvel. Nnedi Okorafor is obsessed with bugs. More specifically grasshoppers, but ...

Jimmy Nelson has gone all over the earth to photograph native peoples at their proudest moments and to show you their soul. “This is us at our best” -- that’s the caption that could hover over these images from Dutch photographer Jimmy Nelson (TED talk: Gorgeous portraits of the world’s vanishing people), who works to put the world’s peoples an...

Rachel Sussman shows photographs of the world's oldest continuously living organisms -- from 2,000-year-old brain coral off Tobago's coast to an "underground forest" in South Africa that has lived since before the dawn of agriculture.

According to the UN, nearly one in three people worldwide live in a country facing a water crisis, and less than five percent of the world lives in a country that has more water today than it did 20 years ago. Lana Mazahreh grew up in Jordan, a state that has experienced absolute water scarcity since 1973, where she learned how to conserve water...

Whether or not you realize it, surfers are masters of complicated physics. The science of surfing begins as soon as a board first hits the water. Surfers may not be thinking about weather patterns in the Pacific, tectonic geology or fluid mechanics, but the art of catching the perfect wave relies on all these things and more. Nick Pizzo dives in...

Simplicity: We know it when we see it -- but what is it, exactly? In this funny, philosophical talk, George Whitesides chisels out an answer.

George Steinmetz's spectacular photos show Africa from the air, taken from the world's slowest, lightest aircraft. Join Steinmetz to discover the surprising historical, ecological and sociopolitical patterns that emerge when you go low and slow in a flying lawn chair.