If you like having live polar bears in the world,
There are, most likely, between 22,000 and 31,000 polar bears alive---lets say 27,000.
Each bear eats about 43 seals annually, so, about 1,151,000 seals are eaten by polar bears annually. (if male bears can't find seals, they'll eat polar bear cubs, and the occasional human---yummy)
If the bears didn't reduce the seals numbers, the seals would breed out of control creating an ecological disaster.
So, we would have to employ hundreds or thousands of Norwegians to go up there and club 1,151,000 seals to death annually. In order for this to work, you'd most likely need to develop a taste for seal skin clothing, and add seal meat to your gourmet diet.
seriously?
A curious thing about polar bears is that there is no consensus of/on when they evolved from brown bears, or grizzly bears, or a common ancestor to brown bears and polar bears.
The estimated dates of the divergence vary wildly from 70,000 years to 6 million years(before arctic ice). There seems to be a clustering of possible dates from about 600,000 years to about 1,500,000 years.
lets guess at 1,000,000 years. That means that these bears with translucent fur(lets heat energy in--much like a portable greenhouse) have survived several previous interglacials, many of which were much warmer that this Holocene. During at least four that I know of, the arctic desert and tundra were replaced by arctic forests,
and the southern half of Greenland was ice free and forested.
And
The polar bears survived and survived again and again.
Are your worried about the polar bears chance of survival?
If so, why so?