A sudden plunge of global temperatures 12,900 years ago may have been caused by a comet impact, a British researcher argues. Credit: U.S. Geological SurveyFrom Cosmos/AFP:
PARIS: A sudden plunge of global temperatures at the dawn of human civilisation may have been caused by a comet impact, a British researcher argues.
Known as 'the Younger Dryas', it has been also called the Big Freeze and the Last Blast of the Ice Age - but for researchers trying to understand the Earth's ancient climate, it's one of the big mysteries of the field.
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