Tom Friedman's New Book Hot, Flat, and Crowded: Scientific A

Pulitzer Prize-winning New York Times columnist Tom Friedman discusses his new book, Hot, Flat, and Crowded: Why We Need a Green RevolutionAnd How it Can Renew America. Plus, we'll test your knowledge about some recent science in the news. Web sites mentioned in this episode include www.thomaslfriedman.com

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