How to green the world's deserts and reverse climate change | Allan Savory

NOTE: Statements in this talk have been challenged by other scientists working in this field. Read more here: https://blog.ted.com/allan-savorys-how-to-fight-desertification-and-reverse-climate-change-criticisms-updates/"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.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 (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more.Find closed captions and translated subtitles in many languages at http://www.ted.com/translateFollow TED news on Twitter: http://www.twitter.com/tednewsLike TED on Facebook: https://www.facebook.com/TEDSubscribe to our channel: http://www.youtube.com/user/TEDtalksDirector