Tag Archives | glaciation

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CO2 behind prehistoric global cooling

Ice in Antarctica appeared suddenly (in geologic terms) about 35 million years ago, after more than 100 million years of being relatively ice-free. Scientists have long puzzled over what triggered the formation of Antarctica’s massive ice-sheets, as no evidence of global cooling during the period had been found. “Previous evidence points paradoxically to a stable […]

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Glacier Woes Overstated?




New research from the University of California – San Diego challenges the generally accepted belief that substantial ice sheets could not have existed on Earth during past super-warm periods. The study by researchers at Scripps Institution of Oceanography at UC San Diego provides strong evidence that a glacial ice cap, about half the size of […]




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