Ancient fossilized leaves show, for the first time, that dramatic increase in CO2 levels over a relatively short period was contemporaneous to the onset of the Antarctic Ice Sheet deterioration at the Oligocene/Miocene boundary.

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Ancient fossilized leaves show, for the first time, that dramatic increase in CO2 levels over a relatively short period was contemporaneous to the onset of the Antarctic Ice Sheet deterioration at the Oligocene/Miocene boundary.