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Wednesday, March 25, 2009

Reflective journal four .

The key danger posed by global warming is malnutrition or starvation due to habitat loss. Polar bears hunt seals from a platform of sea ice. Rising temperatures cause the sea ice to melt earlier in the year, driving the bears to shore before they have built sufficient fat reserves to survive the period of scarce food in the late summer and early fall. Reduction in sea-ice cover also forces bears to swim longer distances, which further depletes their energy stores and occasionally leads to drowning. Thinner sea ice tends to deform more easily, which appears to make it more difficult for polar bears to access seals.
WITHIN 75 years polar bears could be extinct if we don't take urgent action now. And in just 40 years' time two-thirds of their population will have vanished.IF temperatures rise by 2°C by 2050 as expected, 50 per cent of Emperor penguins and 75 per cent of Adelie penguins will die.In fact, 11 of the 19 penguin species are already under threat. Many struggle to find food because higher sea temperatures are killing their main food, the shrimp-like krill.

(186 words)
Taken from: http://en.wikipedia.org/wiki/Polar_Bear#Conservation_status.2C_efforts_and_controversies
http://www.newsoftheworld.co.uk/green/218031/Endangered-polar-bears-penguins-turtles-and-tigers-need-your-help.html


Oh hello. I am Eileen . 2e2 January 2009 February 2009 March 2009 May 2009 July 2009 Bituwin - template Dementee - image Words from Before It's Too Late by Goo Goo Dolls.	Wednesday, March 25, 2009 Reflective journal four . The key danger posed by global warming is malnutrition or starvation due to habitat loss. Polar bears hunt seals from a platform of sea ice. Rising temperatures cause the sea ice to melt earlier in the year, driving the bears to shore before they have built sufficient fat reserves to survive the period of scarce food in the late summer and early fall. Reduction in sea-ice cover also forces bears to swim longer distances, which further depletes their energy stores and occasionally leads to drowning. Thinner sea ice tends to deform more easily, which appears to make it more difficult for polar bears to access seals. WITHIN 75 years polar bears could be extinct if we don't take urgent action now. And in just 40 years' time two-thirds of their population will have vanished.IF temperatures rise by 2°C by 2050 as expected, 50 per cent of Emperor penguins and 75 per cent of Adelie penguins will die.In fact, 11 of the 19 penguin species are already under threat. Many struggle to find food because higher sea temperatures are killing their main food, the shrimp-like krill. (186 words) Taken from: http://en.wikipedia.org/wiki/Polar_Bear#Conservation_status.2C_efforts_and_controversies http://www.newsoftheworld.co.uk/green/218031/Endangered-polar-bears-penguins-turtles-and-tigers-need-your-help.html 9:55 PM ·