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Let’s talk about poo: Fellows Friday with Francis de los Reyes IIILet’s talk about poo: Fellows Friday with Francis de los Reyes III

Posted By Karen Eng

Environmental engineer Francis de los Reyes works with cutting-edge microbiological techniques to create solutions in the fields of environmental biotechnology and engineering. But his big passion, both professionally and personally, is finding ways to improve the plight of the world’s 2.5 billion people living without adequate sanitation. In this conversation, he tells the TED Blog […]


How big is the ocean? A summer-appropriate TED-Ed lessonHow big is the ocean? A summer-appropriate TED-Ed lesson

Posted By Emmie Le Marchand

“Imagine yourself standing on a beach, looking out at the ocean — waves crashing against the shore, blue as far as your eyes can see.” This is the opening line of Scott Gass’ TED-Ed lesson, “How big is the ocean?” But the animated video gives you much more to think about than sand between your […]

Global Issues

7 talks on ideas for life without water

Posted By Kate Torgovnick May

The glittering skyline of Doha, the capital of Qatar, has become famous in recent years. But as Fahad Al-Attiya points out in today’s talk, the ability for any city to grow in Qatar is surprising. After all, this is a country without any water. Al-Attiya, the chair of Qatar’s National Food Security Programme, reveals that […]


9 talks on the wonderful world of water9 talks on the wonderful world of water

Posted By Morton Bast

From the driest deserts to the deepest seas, the flow of water shapes our world. Cool off from the summer heat with these nine talks that explore our intimate relationship with water. Romulus Whitaker: The real danger lurking in the water Romulus Whitaker shares his fascination with the remarkable reptiles that populate the rivers of […]