Saturday, 17 April 2010

Increasing Temperature changes global Atmosphere

The effects, or impacts, of Increasing Temperature causes climate change which may be physical, ecological, social or economic. Evidence of observed climate change includes the instrumental temperature record, rising sea levels, and decreased snow cover in the Northern Hemisphere.Some impacts from increasing temperatures are already happening.

Ice is melting worldwide. This includes mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice. Numbers of Penguins on Antarctica have fallen from 32,000 breeding pairs to 11,000 in 30 years.

Sea levels are rises unexpectedly between 7 and 23 inches (18 and 59 centimeters) by the end of the century. Between 1993 and 2003, the rate increased above the previous period to 3.1 [2.4 to 3.8] mm/yr. and continued melting at the poles could add between 4 and 8 inches (10 to 20 centimeters).

Hurricanes like Katrina and other storms are likely to become stronger.Floods and droughts will become more common. Rainfall in Ethiopia, where droughts are already common, could decline by 10 percent over the next 50 years.

Fresh water will be less available. If the Quelccaya ice cap in Peru continues to melt at its current rate, it will be gone by 2100, leaving thousands of people who rely on it for drinking water and electricity without a source of either.Varieties diseases will spread.Such as malaria carried by mosquitoes.

Ecosystems will change. According to Wildlife research scientist Martyn Ob bard found that since the mid-1980s, with less ice on which to live and fish for food, polar bears have gotten considerably skinnier. A similar pattern has found in Hudson Bay by Polar bear biologist Ian Stirling.  He fears that if sea ice disappears, the polar bears will as well.

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