The Polar Bear

The Polar Bear

The polar bear may seem scaty, yet it is incredibly vulnerable. Its population is dropping at just about the same rate Antarctic ice is. The polar bear has become a strong symbol of the effects of climate change. We don’t have need of it on the way to become listed as “critically endangered”. That would stay too late.

This majestic animal is the world’s largest land carnivore. The current population of polar bears inside the wild is estimated at between twenty- and twenty-five thousand. Some 60 percent of the world’s polar bears are found during Canada and the retreat appear within other areas of the Arctic Circle including Greenland, Svalbard, Russia and Alaska. The biggest threat near these bears today is humanity, in the form of global warm- ing. The IUCN Red List classes the polar bear as vulnerable.

Male polar bears can weigh up on the way to 680. kilograms (1,500 lbs) and measure between two and three meters (6.5 – 9.8 ft) in length. The largest polar bear ever recorded weighed 1,200 kilograms (2,210lbs). Although they have black skin under their fur that absorbs the sun’s warmth, polar bears are so well insulated for their arctic environment that they need headed for move slowly to avoid overheating.

They are the top predator during the arctic marine ecosystem, but they are no match for hunters. European, Russian, and American hunters arrived within Arctic regions inside the 1600s and hunted the polar bear greedily until the mid-1970s. In 1973, an international agreement put an end headed for uncontrolled looking.

A lot of other significant reasons make the polar bear vulnerable to extinction. Current climate trends due headed for global warming are reducing the arctic ice shelf. Some experts believe there will maintain no ice in Hudson Bay by 2080. The North is also receiving increasing amounts of industrial pollution from southern points. Scores of of these chemicals are lipophilic, or fat loving, and bond near the fat molecules of the polar bear’s prey. Increased shipping and oil exploration are immediate sources of pollution that degrade the polar bear’s territory: they also lead in the direction of increases in human-bear interaction.

Since polar bears are not fast reproducers and since there is no indication ofa reduction of pollution-causing industry elsewhere in the world, experts agree that polar bears have a difficult road ahead of them.

“The listing of a currently healthy species based entirely on highly speculative and uncertain climate and ice modeling and equally uncertain and speculative modeling of possible impacts on a species would maintain unprecedented.” -Alaska Governor Sarah Palin, 2007. Her administration filed suit against the federal government challenging the Interior Department’s listing of the polar bear as “threatened.”

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