"If you still have any lingering doubts about global warming, stick around. We’re off to the Arctic, where Tara Brown found all the proof she needed that there’s something drastically wrong with the world’s weather. It came in the shape of a very large, very hungry polar bear - an angry predator, with us as its prey. Stranded in the middle of nowhere with a three-metre, 300kg bear on the attack is a frightening experience. It’s also a graphic lesson in what happens when we mess with nature. As global temperatures rise, the ice cap melts and the polar bears’ hunting grounds disappear. Now they’re starving, desperate for food - so desperate even humans look appetising."
Case closed. However the Wall street journal thinks otherwise:
But hey, I can understand 60 minutes on one side. My next door neighbours car hissed at me the other day, so naturally I thought cats were almost extinct too. Thanks to Andrew Bolt.
Apparently so, because there are in fact more polar bears in the world now than there were 40 years ago, as the nearby chart shows. The main threat to polar bears in recent decades has been from hunting, with estimates as low as 5,000 to 10,000 bears in the 1950s and 1960s. But thanks to conservation efforts, and some cross-border cooperation among the U.S., Canada and Russia, the best estimate today is that the polar bear population is 20,000 to 25,000.
It also turns out that most of the alarm over the polar bear’s future stems from a single, peer-reviewed study, which found that the bear population had declined by some 250, or 25%, in Western Hudson Bay in the last decade. But the polar bear’s range is far more extensive than Hudson Bay. A 2002 U.S. Geological Survey of wildlife in the Arctic Refuge Coastal Plain concluded that the ice bear populations “may now be near historic highs.” One of the leading experts on the polar bear, Mitchell Taylor, the manager of wildlife resources for the Nunavut territory in Canada, has found that the Canadian polar bear population has actually increased by 25%—to 15,000 from 12,000 over the past decade.
Mr. Taylor tells us that in many parts of Canada, “polar bears are very abundant and productive. In some areas, they are overly abundant. I understand that people not living in the North generally have difficulty grasping the concept of too many polar bears, but those who live here have a pretty good grasp of what that is like.” Those cuddly white bears are the Earth’s largest land carnivores.