David Roberts: Progressives Shouldn’t be Afraid to Talk Climate

Some progressives say they're afraid to talk about climate science and the urgent need for climate action because it's too complicated. In this TED Talk, Grist's David Roberts says it's easy to understand climate science, simple to communicate the danger of climate inaction, and he'll convince you if you give him just 17 minutes of your day: You can follow David on Twitter and subscribe to his Grist feed on Google Reader.