ADMIT GLOBAL WARMING AND DO SOMETHING ABOUT IT!: what makes scientists think that humans are causing global warming now?

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Wednesday, May 5, 2010

what makes scientists think that humans are causing global warming now?

HERE'S THE QUESTION: If Earth has warmed and cooled throughout history, what makes scientists think that humans are causing global warming now? HERE'S THE ANSWER:... Sign in to see full entry.

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