When Yarrow Axford, a researcher at the University of Colorado, traveled to a remote lake on the east coast of Baffin Island -- which sits a few hundred miles west of Greenland -- the area seemed pristine and untouched by human hands.
But when Axford, who works at the Institute for Arctic and Alpine Research, started examining the sediment layered beneath the 100-acre lake, she noticed that something was missing. Two species of tiny, cold-loving bugs that had made the lake their home for tens of thousands of year had disappeared, apparently the victims of rising global temperatures.
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