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Ancient superflood brought climate chaos

Ancient superflood brought climate chaos
trefwoorden: overstroming - oudheid - klimaatverandering
A catastrophic 'superflood' following the rupture of a massive glacier-dammed lake in Canada at the end of the Ice Age probably plunged the world into centuries of climatic chaos.
That single event was likely responsible for the most dramatic climate change of the last 10,000 years, according to a report by a Canadian team led by Professor Garry Clarke, a geophysicist at the University of British Columbia in Vancouver, which appears today in the journal Science.
The 'superflood' was enough to alter ocean circulation in the Northern Hemisphere: analysis of ice cores taken in Greenland reveal that for the next 200 years or so, the mean temperature dropped by 5C, snow accumulation decreased sharply and forest fires became more frequent.

Lees verder bij: ABC Science News (15 augustus 2003)