Polar bears in the Hudson Bay off the coast of Canada, according to scientists, lost in 2011, six weeks of hunting time due to lack of ice due to global warming, the website CBCNews Canada.
"Bears literally crowd the shore in anticipation of the ice on which they can get to the seal hunt … they are really hungry," — are words in the message head of the Department of Arctic Studies at the University of Manitoba (Canada), David Barber (David Barber).
Polar bears during the winter hunting season accumulating fat, which allows for "hungry" during the summer months on land (about 150 days), when they lose, according to scientists, about a kilogram of fat per day. The formation of fat in the winter, including the extremely important for females in order to continue the race. In general, over the summer bear can lose weight more than 100 pounds.
According to long-term observations, the period of ice formation in the Gulf gradually shifted to the beginning of December, as the ice melts in the spring before, that significantly reduces the time of "ice" hunting bears.
According to scientists, if climate trends continue, in 20 years, the ice will be formed for another three weeks later. In this case the population of bears in the Hudson Bay could disappear in a few decades.