November 16, 2006 — By Yereth Rosen, Reuters ANCHORAGE — Polar bear cubs in Alaska’s Beaufort Sea are much less likely to survive compared to about 20 years ago, probably due to melting sea ice caused by global warming, a study released Wednesday said. The study, published by the U.S. Geological Survey, estimated that only 43 percent of polar bear cubs in the southern Beaufort Sea survived their first year during the past five...

