The Fern That Cooled the Planet
Over its lifetime, the Earth has seen plenty of climate change. About 50 million years ago the planet experienced extreme cooling, and all from a little fern. We ve been nominated for a Webby! Please vote: http://tinyurl.com/sswebby Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn t make SciShow without them! Shout out to Justin Ove, Coda Buchanan, Lucy McGlasson, Accalia Elementia, Mark Terrio-Cameron, Saul, Kathy & Tim Philip, Kevin Bealer, Christopher Collins, Thomas J., charles george, Andreas Heydeck, Patrick D. Ashmore, Justin Lentz, Will and Sonja Marple, Ed Shelley, Chris Peters, Tim Curwick, Philippe von Bergen, Fatima Iqbal. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://theazollafoundation.org/ http://www.scientificamerican.com/article/can-the-fern-that-cooled-the-planet-do-it-again/ http://link.springer.com/article/10.1007%2Fs00374-002-0452-x?LI=true https://experiment.com/projects/azolla-a-little-fern-with-massive-green-potential http://www.azollagenome.net/our-goals.html http://ngm.nationalgeographic.com/ngm/0505/resources_geo.html http://www.scientificamerican.com/article/how-scientists-uncovered-arctic-clues-to-a-past-where-a-tiny-fern-changed-the-planet/ http://onlinelibrary.wiley.com/doi/10.1111/j.1472-4669.2009.00195.x/abstract IMAGES: Azolla: https://commons.wikimedia.org/wiki/File:Azolla_caroliniana.jpg https://commons.wikimedia.org/wiki/File:Azolla_caroliniana0.jpg https://commons.wikimedia.org/wiki/File:Azolla_filiculoides_MUN.jpg Anabaena: https://commons.wikimedia.org/wiki/File:Anabaena_circinalis_phv.jpg
