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Topic - George Durner

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In this April 8, 2011, photo provided by the U.S. Geological Survey, a polar bear walks across rubble ice in the Alaska portion of the southern Beaufort Sea. Rapid global warming has increased the speed of sea ice drifting off Alaska's northern coasts and polar bears are paying a price, according to a new federal study. (Mike Lockhart/USGS via AP)

Faster-moving sea ice forces polar bears to use more energy

By DAN JOLING - Associated Press

Long-distance swims may cause polar bear problems

By DAN JOLING - Associated Press