Showing posts with label Environment - Polar Bears - Comment. Show all posts
Showing posts with label Environment - Polar Bears - Comment. Show all posts

Sunday, 8 February 2009

Polar Bears and the loss of ice cover


New Scientist reports (Jan 31, 2009) that the number of undernourished polar bears has tripled over the past twenty years. Polar bears only fast during the mating season during Spring and this is considered a temporary behavour. In 1985 and 1986, the proportion of bears fasting was 9.6% and 10.5% respectively however by 2005 and 2006 this had risen to 21.4% and 29.3% - triple the earlier twenty years. The amount of ice melting which reduces platforms from which bears can fish as well as provide nesting dens for seals to build for their pups is seen as the main culprit. With this aspect and a vast array of other data coming to light, its difficult to see how there can be doubters still consistently saying that global warming is not a real and genuine phenomenon.