Yale Environment 360 is an online magazine offering opinion, analysis, reporting, and debate on global environmental issues. We feature original articles by scientists, journalists, environmentalists, academics, policy makers, and business people, as well as multimedia content and a daily digest of major environmental news. View all our content at Yale Environment 360 and add your comments to the discussion. Plus, follow us on Facebook (facebook.com/YaleEnviro360) and Twitter (twitter.com/YaleE360).