Twilght of the Polar Bear?

Here is an excerpt from an article in Scotsman.com:

THE world's polar bear population is continuing to decline, with only 19 population groups left in the world, wildlife campaigners said today.
This fall represents more than a quarter of the species' populations, according to new findings by the charity WWF.
The main cause is global warming and its negative impact on the animals' sea ice habitat. Contaminants, oil exploration and failure to curb hunting are also adding to the problem.
There are now up to 25,000 polar bears in the world living in 19 groups, of which five - located in Canada, Greenland and the US - are in decline.

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