Polar bear survival rate falls as climate warms: study

ANCHORAGE, Alaska (Reuters) - 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 on Wednesday said.ADVERTISEMENTThe study, published by theU.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 years, compared to a 65 percent survival rate in the late 1980s and early 1990s.

Polar bear survival rate falls as climate warms: study - Yahoo! News