Is it the last drop ???

It's hard to imagine a world in which polar bears don't exist in the wild. Alun Anderson, former editor-in-chief of New Scientist magazine, asserts that it most likely will occur in our lifetime.

In his book, "After the Ice: Life, Death, and Geopolitics in the New Arctic" (HarperCollins, 2009), Anderson takes a close look at the complicated past, present and future of the Arctic region, the area of Earth that he says is certain to feel the effects of global warming first and most powerfully.