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Nous agissons chaque jour pour lutter contre le dérèglement climatique et assurer une sécurité alimentaire
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When the Sahara Was Green
PBS Member Stations rely on viewers like you. To support your local station, go to http://to.pbs.org/DonateEons Check out Antarctic Extremes on PBS Terra: https://www.youtube.com/watch?v=EvRAuy1ZmTc The climate of the Sahara was completely different thousands of years ago. And we’re not talking about just a few years of extra rain. We’re talking about a climate that was so wet for so long that animals and humans alike made themselves at home in the middle of the Sahara. Big thanks to Fabrizio De Rossi for the reconstructions of the Sahara past and present. Check out more of Fabrizio's work at https://www.facebook.com/ArtofFabricious/ Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Super special thanks to the following Patreon patrons for helping make Eons possible: Anthony Callaghan, Anton Bryl, Jeff Graham, shelley floryd, Laura Sanborn, Henrik Peteri, Zachary Spencer, Chandler Bass, Richard Ohnemus, Joao Ascensao, Andrey, Ben Thorson, Marcus Lejon, Ilya Murashov, Nathan Paskett, Jerrit Erickson, Merri Snaidman, David Sewall, Gabriel Cortez, Jack Arbuckle, Kevin Griffin, Robert Noah, Philip Slingerland, Todd Dittman, James Bording, Eric Vonk, Robert Arévalo, Esmeralda Rupp-Spangle, Jon Monteiro, Missy Elliott Smith, Jonathan Wright, Gregory Donovan, Miles Chaston, Michael McClellan, PS, Maria Humphrey, Larry Wilson, Hubert Rady, John Vanek, Tsee Lee, Daisuke Goto, Gregory Kintz, Matt Parker, Tyson Cleary, Case Hill, Stefan Weber, Betsy Radley If you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards! Want to follow Eons elsewhere on the internet? Facebook - https://www.facebook.com/eonsshow Twitter - https://twitter.com/eonsshow Instagram - https://www.instagram.com/eonsshow/ References: https://docs.google.com/document/d/1xYQFzEJ4iJEey2505a6fMDeAAm6WVBNLLiIMKI-bAZ8/edit?usp=sharing
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/translate Follow TED news on Twitter: http://www.twitter.com/tednews Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: http://www.youtube.com/user/TEDtalksDirector
FRANCE 24 English
Can the 'Great Green Wall' stop desertification in China?
Subscribe to France 24 now: http://f24.my/youtubeEN FRANCE 24 live news stream: all the latest news 24/7 http://f24.my/YTliveEN China is one of the countries worst affected by desertification. As the Gobi Desert expands further south - engulfing an average of 3,000 square kilometres every year - entire communities are forced to relocate, becoming climate refugees. In a bid to combat this phenomenon, Chinese authorities have been erecting a so-called "Great Green Wall" of vegetation. In some areas, positive results are beginning to show. Our France 2 colleagues report, with FRANCE 24's Ellen Gainsford. A programme prepared by Gaëlle Essoo, Laura Burloux and Claire Pryde http://www.france24.com/en/reportages Visit our website: http://www.france24.com Subscribe to our YouTube channel: http://f24.my/youtubeEN Like us on Facebook: https://www.facebook.com/FRANCE24.English Follow us on Twitter: https://twitter.com/France24_en
What If We Terraformed the Sahara Desert?
#AmazonFires In an effort to fight climate change, the Sahara Desert could be going green... literally. Plans are being made to terraform the entire Sahara desert; changing it from a dry, barren landscape to a lush green space. If successful, the transformation could remove 7.6 billion tons of atmospheric carbon yearly. How could we change the nature of such a vast, isolated landscape? Transcript and sources: https://insh.world/science/what-if-we-terraformed-the-sahara-desert/ Made possible with the support of Ontario Creates http://www.ontariocreates.ca Watch more what-if scenarios: Planet Earth: https://www.youtube.com/watch?v=_-HhCwYD7rc&list=PLZdXRHYAVxTJCzxwmCq0NNpYq9N9wyb2l The Cosmos: https://www.youtube.com/watch?v=gfuJyVkMH_g&list=PLZdXRHYAVxTJno6oFF9nLGuwXNGYHmE8U Technology: https://www.youtube.com/watch?v=CS3bBO05fpU&list=PLZdXRHYAVxTIeRY3JtgXgoGqSEB7kDdKO Your Body: https://www.youtube.com/watch?v=QmXR46TrbA8&list=PLZdXRHYAVxTJNsV9FFeNAKl2ySsHj8GZO Humanity: https://www.youtube.com/watch?v=fdCDQIyXGnw&list=PLZdXRHYAVxTIFnvmOeWbv-Mt8zFxSCSvZ Follow what-if on Instagram for bonus material: https://www.instagram.com/what.if.show/ Suggest an episode: http://bit.ly/suggest-whatif T-shirts and merch: http://bit.ly/whatifshop Facebook Watch: https://www.facebook.com/What.If.science Watch on Tubi: http://bit.ly/what-if-tubi "Imagination will often carry us to worlds that never were. But without it, we go nowhere." — Carl Sagan If you enjoy What If, make sure to check out our other channel "Underknown": https://www.youtube.com/c/interestingshit Produced by Underknown in Toronto, What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different. Feedback, inquiries and suggestions: https://underknown.com/contact
Agriculture in the Negev: Today's Desert Pioneers
Meet some of the miracle workers who are pushing forward the frontiers of desert agriculture. Get your popcorn and family, and watch this entertaining 40-minute video that will amaze and inspire you. Hear about the creative irrigation systems and growing techniques of crops like the jojoba plant, wine grapes, peppers, and tomberries – tomatoes the size of blueberries. Learn about the unique aquaculture, from fish, to coral, to genetically modified prawns, made possible because of the talented scientists at Ben-Gurion University and the pioneering farmers of the Negev desert.
How China transformed its desert into a fruit growing oasis
In this episode of Travelogue, CGTN's Tianran travels to the desert tracts in northwest China's Ningxia Hui Autonomous Region. The region has registered remarkable progress in the recent years including doing the impossible by growing rice paddies and vineyards in the desert land. Join us and explore the secret behind this miraculous transformation. Travelogue is a 30-minute features program on CGTN that takes viewers on unforgettable adventures across China. It airs on Sundays at 7:30 a.m. and 4:30 p.m. BJT (00:30 & 09:30 GMT), with repeats on Mondays at 2:00 a.m. (Sunday 19:00 GMT) and Thursdays at 1:30 p.m. (06:30 GMT). Subscribe to us on YouTube: https://goo.gl/lP12gA Download our APP on Apple Store (iOS): https://itunes.apple.com/us/app/cctvnews-app/id922456579?l=zh&ls=1&mt=8 Download our APP on Google Play (Android): https://play.google.com/store/apps/details?id=com.imib.cctv Follow us on: Website: https://www.cgtn.com/ Facebook: https://www.facebook.com/ChinaGlobalTVNetwork/ Instagram: https://www.instagram.com/cgtn/?hl=zh-cn Twitter: https://twitter.com/CGTNOfficial Pinterest: https://www.pinterest.com/CGTNOfficial/ Tumblr: http://cctvnews.tumblr.com/ Weibo: http://weibo.com/cctvnewsbeijing
Willie Smits: How to restore a rainforest
By piecing together a complex ecological puzzle, biologist Willie Smits believes he has found a way to re-grow clearcut rainforest in Borneo, saving local orangutans -- and creating a thrilling blueprint for restoring fragile ecosystems. UPDATE: December 2012: The core content of this talk has been challenged on a number of grounds. For details, and for Willie Smits' response to these criticisms, please see this page: http://www.ted.com/pages/791 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 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. Watch the Top 10 TEDTalks on TED.com, at http://www.ted.com/index.php/talks/top10
How Can We Terraform the Sahara Desert?
Terraforming Sahara, a new and thought provoking idea that could change the fate of this planet. Of course by doing so we can fight with the climatic changes. Imagine a green Sahara can protect us from the effects of global warming and it can also deal with the carbon dioxide emissions. For getting information about how we can undergo this master plan, watch the complete episode of Earthy Perks and ignite your imaginative powers.
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