Lewis Pugh’s mind-shifting Mt. Everest swim

After he swam the North Pole, Lewis Pugh vowed never to take another cold-water dip. Then, he heard of Mt. Everest’s Lake Imja — a body of water at an altitude of 5,300 meters, entirely created by recent glacial melting — and began a journey that would teach him a radical new way to approach both swimming and think about climate change. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the “Sixth Sense“ wearable tech, and “Lost“ producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on , at Watch a highlight reel of the Top 10 TEDTalks at