A Conversation With Bill McKibben

Frustrated by political gridlock in Washington, writer Bill McKibben and some fellow Vermonters decided they had to do something to draw attention to the shrinking window of opportunity we have to curb global warming. So they began a seat-of-the-pants campaign that has caught fire and is now expected to produce, on April 14, 2007, the largest global warming demonstrations ever seen. OnEarth's George Black talks with him about how Step It Up 2007 is building a mass movement -- fast. LISTEN (7 min)