"The idea that there's an information deficit -- that if you fill it, it'll change the world -- is fantasy," says Andrew Revkin in an interview at the Wilson Center.

"I've been writing about issues like global warming since the 1980s, which makes me one of the greybeards...and I had this expectation, and it's one that many scientists have, that if you just put out the information effectively, people will respond and change their behavior," says Revkin, author of The New York Times' Dot Earth blog and a fellow at Pace University.

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