Alaska oil explorers encountering more polar bears

Oil companies scouring the coastline of Alaska's North Slope for new production sites are converging on the same territory as hungry polar bears trying to escape shrinking and thinning sea ice. Polar bears have not attacked any workers recently, but oil companies are reporting four times as many sightings as they did last decade. "These bears will walk the coast," said Craig Perham, a biologist with the U.S. Fish and Wildlife Service. "So if you've got an operation right on the coast, you're going to see bears." There were 321 polar bear sightings in and around Alaska oil and gas operations in 2007 and 313 in 2008, according to the U.S. Fish and Wildlife Service. That is about four times the annual average posted for the period of 1994 through 2000. "What this appears to be is bears looking for another option because their traditional habitat is not as healthy as it used to be," said Steve Amstrup of the U.S. Geological Survey. This summer, Arctic sea ice shrank to its third-lowest area on record.