“We’ve known for decades that continued warming and sea ice loss ultimately can only result in reduced distribution and abundance of polar bears,” lead author Steven Amstrup, chief scientist emeritus at Polar Bears International, said in a statement.

Global warming could mean more polar bear attacks.
The killing of an Alaska mother and her 1-year-old son by a polar bear last week suggests that scarcity caused by global warming is raising the risk of attacks by the Arctic bears, The Washington Post reported. “Animals in poor body condition are just more likely to take risks, and those are the bears specifically that people have to be worried about,” Geoff York of Polar Bears International told the Post.