Past Warming Event Provides Window into Future Climate Change

December 16, 2014 7:03 PM

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Warming that occurred almost 56 million years ago isn't all that different from the human-caused global warming we're experiencing today. And a new study suggests that this past warming event can provide a window into future climate change.

During the Paleocene-Eocene thermal maximum, or PETM, 56 million years ago, temperatures rose by 5 to 8 degrees Celsius (9 to 15 degrees Fahrenheit). It also involved the average annual release of at least 0.9 petagrams (1.98 trillion pounds) of carbon to the atmosphere. While it's promising that Ea...

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