Knowing that the antis would chime in asking for cites (but not giving any themselves):
I did a quick google to see if there was anything to your Polar Bear assertion. There are many, many hits and when you discard any that have a ARA association there are still many, many.
Poster child of climate change: Polar bear
Just one cite about Polar bears, etc. A few excerpts follow.
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After being sued by three environmental groups, the Interior Department announced in February that it will study whether to list the bears as "threatened" or "endangered" under the Endangered Species Act.
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The polar bear depends on sea ice for sustenance and survival. It would become the first creature officially listed as in danger of extinction because of global warming.
Kazlowski has ranged between Alaska's Point Hope and Herschel Island at the edge of Canada's MacKenzie Delta, photographing bears as they swim between ice floes, hunt for ringed seals on the ice and teach cubs how to spread out their weight while walking on ice.
"They depend on ice being close to the land," he said, "but what's happening is ice is moving off the continental shelf. The ice is literally moving offshore."
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Divoky has spent summers researching the bird life of Cooper Island, north of Barrow, Alaska. He has specialized in study of black guillemots.
He found himself, accidentally, at an ideal spot to record the effect of climate change.
The guillemots have advanced their breeding season by two weeks. A freakish storm, coming from the east, pushed water over much of the island in October. "I used to keep my dairy products next to the permafrost," Divoky said, "but now there is no more permafrost."
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The Arctic is home to 20,000 to 25,000 polar bears. The bears eat little during the summer, and do much of their hunting in the fall. They den during the winter, both on ice floes and along the coastline in such places as the Arctic National Wildlife Refuge.
A more southerly polar bear population along the west shore of Canada's Hudson Bay is already affected: Climate change has added three weeks to the bears' summer-early fall fast. The population has declined by an estimated 15 percent.
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I only scanned a few articles from the long list. The one above is the 1st or second in the list so, no, I didn't have to go looking for one that backs up my stance - most of them on the list appear to.
As for hunting: If you check the 2nd or 3rd on the list you will see that there are efforts to ban hunting them (except for subsistance) in Canada due to the threat to their survival. It is already banned in U.S. territory.
Now off to see if I can find anything about 'Amount of ice increasing'.
Harry K