Most polar bears to disappear by 2100, study predicts

Melting Arctic sea ice could cause starvation and reproductive failure for many as early as 2040, scientists warnScientists have predicted for the first time when, where and how polar bears are likely to disappear, warning that if greenhouse gas emissions stay on their current trajectory all but a few polar bear populations in the Arctic will probably be gone by 2100.By as early as 2040, it is very likely that many polar bears will begin to experience reproductive failure, leading to local extinctions, according to a study published in Nature Climate Change. Continue reading...