The return to ice-age temperatures lasted 1,300 years," Calvin wrote.
Instead of warming, the Northern Hemisphere then would sharply cool, plunging Western Europe in particular into a prolonged and lethal deep freeze."
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The return to ice-age temperatures lasted 1,300 years," Calvin wrote.
Instead of warming, the Northern Hemisphere then would sharply cool, plunging Western Europe in particular into a prolonged and lethal deep freeze."