Most Alaskan and Russian polar bear populations will have serious problems maintaining themselves by 2080, and could eventually largely disappear by 2100 if the current forecast of greenhouse gas emissions is maintained. Study published by Nature magazine.
Polar bears cannot earn enough livelihood on land, so they rely on ice to hunt and wait for hours in the ice holes where seals breathe to hunt them, but when the ice decreases due to the change, the climate could also change Polar bears are operated.
In the Beaufort Sea in Alaska and in Hudson Bay, the southernmost habitat of the polar bears, a decline in the polar bear population of 25 to 50 percent has already been observed. of the 30 percent population since 1987.
The study warns that polar bears will struggle to reproduce in the short term by 2040, which would cause species to withdraw from certain areas.