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  The Paleocene–Eocene Thermal Maximum 56 Mil yrs ago (PETM)

  Published On: June 11, 2017
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  Climate Effects on Human Evolution

  Published On: March 22, 2014
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  Lester Brown: Perspectives on Limits to Growth

  Published On: May 3, 2013
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  Richard Alley: Perspectives on Limits to Growth

  Published On: May 3, 2013