Polar bears need sea ice to hunt for food. But with the ice melting away, many have been spotted miles from the shore in search of food. Though polar bears are good swimmers, many go too far out and drown. A 2007 US Geological Survey .
May 11, 2009
13.7 Billion Years: Polar Transcendentalism
Polar bears need sea ice to hunt for food. But with the ice melting away, many have been spotted miles from the shore in search of food. Though polar bears are good swimmers, many go too far out and drown. A 2007 US Geological Survey .
March 17, 2009
Arctic states gather to try to save polar bear from global warming
With the mercury rising ever higher, as many as two thirds of the 20-25000 polar bears that roam the Arctic could disappear by the middle of this century according to a recent estimate from the US Geological Survey. …
March 15, 2009
Saving the polar bear: Sci-Tech: News: News24
With the mercury rising ever higher, as many as two thirds of the 20-25 000 polar bears that roam the Arctic could disappear by the middle of this century according to a recent estimate from the US Geological Survey. …
March 13, 2009
Sky News: Climate change 'threatens polar bears'
As many as two thirds of the 20-25000 polar bears that roam the Arctic could disappear within the next 50 years due to global warming, according to recent estimates from the US Geological Survey (USGS) and the International Union for …