@Krellin, you said "he also said that in 2050 (or whatever date he used - I didn't go back and check) they will be fine."
I'm going on memory here, but i beleive he said that the 'the will be extinct by 2050' claim was bullcrap - and i guess you can derive that from, 'they're fine right now' -
The alternative view is, 'they are going extinct right now, and will be gone by 2050'.
Smartly he doesn't claim that they will be fine in 2050, because it's pretty hard to backup that claim.
I'm only picking you up on specifics (nit-picking) because that's all i can backup.
Also, on the 'bears are dying', what i got from the article was, 'we don't know' - our measures are fallible, our predictions suck (because we don't know what changing sea ice will do to their prey, if they will manage to relocate, or how they survived in the past - if that data is accurate)
That is, and let me be specific, even assuming the worst from global warming, we're not sure that the polar bears will go extinct - which isn't that surprising considering how frakking complex the relationship between life and environment it. (and i'd like to link a video about reintroducing wolves to yellowstone, and how it helped the river banks... but i can't for the life of me recall where it is)
And YES, the use of 'Polar Bears are Dying' on behalf of global warming politics is pure PR. Which doesn't mean it's bad science, it means we've got bad science communication. (and i suspect this article is an example of good science communication, so thanks for sharing)