Once again I walked off to the Science Center to research global warming. Our subject for research is still the same as it was yesterday, what humans think about global warming and polar bears. So I went to my computer and started to search.
I found that as far as humans know, there are only 20,000 to 25,000 polar bears left on the planet.
Humans also believe that if global warming does not end, two thirds of the polar bear population will be dead by 2050.
They also know that some of us are dying because we get stranded on a block of sea ice and can not get off. We sometimes resort to trying to swim back to our homes, but we have no chance by doing that.
By 2050, humans estimate that all the polar bears that are not in a land called the Canadian Arctic islands or the coast of Greenland will be dead.
The humans have done tests on how fast the ice melts, and they have come to the conclusion that in two years, .35 million square miles of the ice has already melted.
http://news.nationalgeographic.com/news/2007/09/070910-polar-bears.html
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1 comment:
That is alot of ice. I think you should know that in Canada humans pay 25,000 dollars to kill a Polar Bear. About 7,00 to 9,00 polar bears are killed by hunters.
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