President Barack Obama delivers a speech at the U.N. Climate Change Conference in Paris on Monday.
President Barack Obama delivers a speech at the U.N. Climate Change Conference in Paris on Monday. Eric Feferberg AP
President Barack Obama delivers a speech at the U.N. Climate Change Conference in Paris on Monday. Eric Feferberg AP

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November 30, 2015 8:41 PM

A meeting to avoid climate catastrophe

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