Bill McKibben is the author of more than a dozen books, including the best sellers Falter, Deep Economy, and The End of Nature, which was the first book to warn the general public about the climate crisis.

He is the Schumann Distinguished Scholar in Environmental Studies at Middlebury College and the winner of the Gandhi Prize, the Thomas Merton Prize, and the Right Livelihood Prize, sometimes called "the alternate Nobel." He lives in Vermont with his wife, the writer Sue Halpern. He founded the global grassroots climate campaign 350.org; his new project, organizing people over sixty for progressive change, is called Third Act.