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Home » Environmental Health

Antarctic Ice Growing, Not Shrinking

by Sreeraman on April 20, 2009 at 11:45 AM Environmental Health

New analysis has indicated that contrary to the belief that there is large-scale melting of ice over most of Antarctica, ice is actually expanding in a large portion of the continent.

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Antarctica has 90 per cent of the Earth's ice and 80 per cent of its fresh water. Extensive melting of Antarctic ice sheets would be required to raise sea levels substantially, and ice is melting in parts of west Antarctica.

The destabilisation of the Wilkins ice shelf generated international headlines this month.

However, according to a report in the Australian, the picture is very different in east Antarctica, which includes the territory claimed by Australia.

East Antarctica is four times the size of west Antarctica and parts of it are cooling. T

The Scientific Committee on Antarctic Research report noted that the South Pole had shown "significant cooling in recent decades".

According to Australian Antarctic Division glaciology program head Ian Allison, sea ice losses in west Antarctica over the past 30 years had been more than offset by increases in the Ross Sea region, just one sector of east Antarctica.

"Sea ice conditions have remained stable in Antarctica generally," Dr Allison said.

The melting of sea ice - fast ice and pack ice - does not cause sea levels to rise because the ice is in the water.

Sea levels may rise with losses from freshwater ice sheets on the polar caps.

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