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March 4 2013

Prehistoric warming linked to CO2


Rising carbon dioxide levels may have caused Antarctic warming in the past, new research strongly suggests.

The findings, published today (Feb. 28) in the journal Science, just add to the body of evidence that human-caused greenhouse gas emissions will lead to climate change.

"It's new evidence from the past of the strong role of CO2 [carbon dioxide] in climate variation," said study co-author Frédéric Parrenin, a climate scientist at the CNRS in France.

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