I find this story to be eye-rollingly typical of people.  I assume that the people who go up to the Arctic to see it like polar bears and don't want to see them extinct.  And yet there presence there is contributing to that exact thing.  Maybe they're hunting them.  I don't know.  I find that hard to believe but maybe.  I just think people are stupid.  They want plenty of things and spout off about them, but then they don't change their behavior to aid in the cause.  People get what they deserve, largely, though.  So if we make the polar bears extinct, we'll certainly deserve that.  And in some sense so will the polar bears who couldn't adapt to their environment.  Survival of the fittest.