It kind of depends where you are looking on the planet.

Quote:

http://wwf.panda.org/what_we_do/where_we_work...opulation/

The status of polar bear populations has been assessed at both national and international level, and 7 of 19 of the World's polar bear sub-populations are found to be declining in number, with trends in two linked to reductions in sea ice.

Biodiversity - Status and Trends of Polar Bears

I forgot to mention - this gets attention because it fits a political narrative: The polar bears are fine, so global warming is not happening, or if it is happening, it's not a bad thing after all.