Study: Polar bears decline 40 percent in a decade

ENDANGERED SPECIES -- The heat is on this indicator species. Who's next?
Study finds 40% decline in polar bear numbers in E. Alaska, W. Canada
A study done by researchers from the U.S. Geological Survey and Environment Canada, as well as other groups, followed polar bears in the southern Beaufort Sea from 2001 to 2010, and found that numbers declined 40 percent during that decade.
--Los Angeles Times