Melting Arctic Ice Imperils Polar Bears

The National Snow and Ice Data Center reports that sea ice could reach all-time record lows in these last few weeks of the Arctic summer.

Margaret Williams, who directs the World Wildlife Fund's Alaska office, says that during a helicopter flight Thursday she saw five polar bears, including a cub, in open waters.

Williams says though it's not unusual to see polar bears swimming, such ice conditions are unusual.

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Correction Sept. 3, 2008

A photo that had accompanied this story was later removed because the caption was misleading.

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