For Bill McKibben, more isn't always better

Bill McKibben
Bill McKibben's 1989 book "The End of Nature" brought the concept of global warming to a general audience. He is a former staff writer for The New Yorker, and teaches in the environmental studies department at Middlebury College. His new book is "Deep Economy: The Wealth of Communities and the Durable Future."
Photo courtesy of Middlebury College