"I wrote the first book for a general audience on global warming back in 1989, and I've spent the subsequent 21 years working on the issue. I'm a mild-mannered guy, a Methodist Sunday School teacher. Not quick to anger. So what I want to say is: this is fucked up. The time has come to get mad, and then to get busy."

--Bestselling author and environmentalist Bill McKibben, urging readers of The Huffington Post and TomDispatch.com to shame politicians into action on global warming