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Neil deGrasse Tyson explains the discovery of Climate Change and the Greenhouse Effect

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Uploaded on Jan 26, 2012

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Full version:
American Museum of Natural History's Director of the Hayden Planetarium, Neil deGrasse Tyson, hosted "Life the Universe and Everything: A Conversation with Neil deGrasse Tyson" at the Museum on June 2, 2010
http://www.youtube.com/watch?v=4KRZQQ...

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