Bill McKibben is an American environmentalist and writer who frequently writes about global warming and alternative energy and advocates for more localized economies. In 2010 the Boston Globe called him “probably the nation's leading environmentalist” and Time magazine described him as “the world's best green journalist. He is the author of many books, including Deep Economy, The Age of Missing Information, and The End of Nature. He currently resides with his wife, writer Sue Halpern, and his daughter, Sophie, in Ripton, Vermont. He is a scholar in residence at Middlebury College.