What happens if Earth gets 2°C warmer?

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?--Producer/Video by:Jason LedermanNarrator:Amy SchellenbaumMedia/ArchiveNASANOAAPond5U.S. Department of EnergyU.S. Department of DefenseU.S. Department of StatePrelinger Archive/archive.orgDepositPhotos.comGoogle EarthPixabayWikimedia CommonsSamuel BarstCC by 2.0https://www.flickr.com/photos/paulmannix/303549766https://www.flickr.com/photos/thenationalguard/36069234014/https://www.flickr.com/photos/mtaphotos/8077984881/Attribution-NonCommercial (CC BY-NC)http://pure.iiasa.ac.at/365/1/WP-75-063.pdfMusicAPM MusicInterviewsDr. Dan Horton, Northwestern UniversityDr. Manoj Joshi, University of East AngliaSpecial ThanksYale UniversityStockholm Environment InstituteTom McNamaraAmy SchellenbaumRachel FeltmanSara ChodoshSamuel Barst--FOLLOW POPULAR SCIENCEhttps://www.popsci.comFacebook: https://www.facebook.com/popsciTwitter: https://www.twitter.com/popsciInstagram: https://www.instagram.com/popsciSnapchat: https://www.snapchat.com/add/popularsciencePinterest: https://www.pinterest.com/popularscience