Bill McKibben, a well known environmental author and activist, is the founder of 350.org, an international climate change campaign. 350.org is named for the safe level of carbon dioxide in the atmosphere, 350 parts per million. This October 24, Bill and 350.org are coordinating an International Day of Climate Action to call for a strong climate treaty that meets the 350 target.

When he's not busy organizing, Bill is an active writer on the climate crisis and other environmental issues. His 1989 book The End of Nature was the first book to warn the general public about the threat of global warming. Bill is a frequent contributor to various magazines including The New York Times, The Atlantic Monthly, Harper's,Orion Magazine, Mother Jones, The New York Review of Books, Granta, Rolling Stone and Outside. He is also a board member and contributor to Grist Magazine. He has been awarded Guggenheim and Lyndhurst Fellowships, and won the Lannan Prize for nonfiction writing in 2000. He is currently a Scholar in Residence at Middlebury College and lives in Ripton, Vermont with his wife, author Sue Halpern and daughter Sophie.

For more information, visit www.billmckibben.com.

Bill's been leading the fight against global warming for 20 years, since he wrote the first book for a general audience on the subject, The End of Nature in 1989. But, let's face it, taking on the climate crisis is going to take more than a few good books: it's going to take a movement.