Bill McKibben

William Ernest "Bill" McKibben (born December 8, 1960) is an American environmentalist, author, and journalist who has written extensively on the impact of global warming. He is the Schumann Distinguished Scholar at Middlebury College and leader of the anti-carbon campaign group 350.org. https://en.wikipedia.org/wiki/Bill_McKibben http://www.billmckibben.com/