Polar Bears Eating Themselves Out Of House and Home?

For those who are willing to do their own thinking rather then let others do their thinking for them.
Since Polar Bears are in the news what with their imminent demise and the "infamous" gag order, here are some interesting information from the polar bear front.


First the Scareology from Bloomberg...

March 12 (Bloomberg) -- Polar bears are starving near the Arctic Circle. The unfolding tragedy may help highlight one of the planet's gravest threats, global climate change.
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With ice breaking up sooner each spring and freezing over later each autumn, bears have less space and time in which to hunt and they must swim farther to find food. In the western Hudson Bay in Canada, the southernmost range of polar bears, their numbers have dropped by 22 percent since the early 1980s.
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Bears in the Southern Beaufort Sea off Alaska are showing signs of malnutrition: smaller bodies in adult males and lower survival rates of cubs. Some animals are stranded on land, far from their food source, while others drown in the attempt to cross long stretches of open sea. There have even been instances of bear cannibalism in recent years, a phenomenon never before observed.

Notice the fact that it is only the "southernmost range of polar bears" that seem to be in decline and how we find that if we read to the end of the article that...

Polar bears roam the circumpolar Arctic, traipsing through Alaska, Canada, Greenland, Norway and Russia. The worldwide population is estimated to be between 20,000 and 25,000, up from around 10,000 in the 1960s, when unregulated hunting threatened to wipe out the great carnivore.

Now I'm no scientist (not like Al Gore) but couldn't a 100% to 150% increase in the population of a keystone species over 40 years in an area of such extreme conditions cause low weights, malnutrition, and die offs in isolated areas?
Just curious.