Last Updated: Thursday, June 14, 2012, 08:44
The discovery was made by an 18-member international team of researchers including James Kennett, professor of earth science at University of California Santa Barbara (UCSB).
Last Updated: Saturday, April 03, 2010, 09:50
It has been called the Big Freeze, the Last Blast of the Ice Age or -- to use the scientific name -- the Younger Dryas, and for climate experts it is one of the big mysteries of their field.
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