"Zoo to hand rear polar bear cub"

Here's a not-particularly-interesting-story about polar bears in a German zoo.

So what's the relevance?

It has been alleged that "the polar bear is the first animal to become endangered because of global warming". Er ... given that the average temperature in a German zoo is far higher than it ever will be in the Arctic Circle (unless they keep the bears in a fridge with a glass door) and they seem to be surviving in a German zoo perfectly well, doesn't this dispel the whole myth at a stroke?

As the second article to which I have linked points out:

1. We have absolutely no idea how many polar bears there are, in other words, we have absolutely no way of telling whether numbers are increasing or decreasing.

2. Polar bears seem to live off seals. In winter they catch them through holes in the ice, in summer they catch them off beaches. In other words, even if the ice disappeared, it wouldn't make much difference.

3. The range of temperatures that polar bears can endure is collossal - from a staggering minus 90 degrees C to plus 25 degrees C. If, in future, the Arctic were to warm by five degrees, is it not likely that bears will learn to adapt to temperatures ranging between minus 85 and plus 30? Methinks yes.