Over the last 20 years, 2°C has been referenced in climate policies and agreements made by the Council of the European Union, the G8 (now the G7), and more. So what makes two degrees so important?<br /><br />--<br /><br />Producer/Video by:<br />Jason Lederman<br /><br />Narrator:<br />Amy Schellenbaum<br /><br />Media/Archive<br />NASA<br />NOAA<br />Pond5<br />U.S. Department of Energy<br />U.S. Department of Defense<br />U.S. Department of State<br />Prelinger Archive/archive.org<br />DepositPhotos.com<br />Google Earth<br />Pixabay<br />Wikimedia Commons<br />Samuel Barst<br /><br />CC by 2.0<br />https://www.flickr.com/photos/paulmannix/303549766<br />https://www.flickr.com/photos/thenationalguard/36069234014/<br />https://www.flickr.com/photos/mtaphotos/8077984881/<br /><br />Attribution-NonCommercial (CC BY-NC)<br />http://pure.iiasa.ac.at/365/1/WP-75-063.pdf<br /><br />Music<br />APM Music<br /><br />Interviews<br />Dr. Dan Horton, Northwestern University<br />Dr. Manoj Joshi, University of East Anglia<br /><br />Special Thanks<br />Yale University<br />Stockholm Environment Institute<br />Tom McNamara<br />Amy Schellenbaum<br />Rachel Feltman<br />Sara Chodosh<br />Samuel Barst<br /><br />--<br /><br />FOLLOW POPULAR SCIENCE<br /><br />https://www.popsci.com<br /><br />Facebook: https://www.facebook.com/popsci<br /><br />Twitter: https://www.twitter.com/popsci<br /><br />Instagram: https://www.instagram.com/popsci<br /><br />Snapchat: https://www.snapchat.com/add/popularscience<br /><br />Pinterest: https://www.pinterest.com/popularscience