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In the high reaches of the Canadian Arctic, conducting climate research for UMass Amherst, postdoctoral researcher Francois Lapointe and his Inuit guide were chased by a muskox. Eluding the huge creature, Lapointe returned to UMass with important evidence of unprecedented warming of the Atlantic Ocean.
A team led by Lapointe and University Distinguished Professor Raymond Bradley in the Climate System Research Center of the University of Massachusetts Amherst and Pierre Francus at University of Québec-INRS analyzed sediments gathered from the bottom of Sawtooth Lake on remote Ellesmere Island. The sediments provide a record of the Atlantic temperatures there as long as 2,900 years ago and show that the warmest interval over this period has been in the past 10 years.