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.

McKibben is also 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. McKibben is a frequent contributor to various magazines including The New York Times, The Atlantic, Harper's Magazine, Orion, Mother Jones, The New York Review of Books, Granta, Rolling Stone, and Outside.

He is also a board member of and contributor to Grist.org. 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.

Last Updated: June 13, 2017