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Major sea level rise likely as Antarctic ice melts


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Ice Age Wanderer
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« on: December 01, 2009, 01:29:45 am »

The ozone hole is expected to repair itself in about 50 years, now that the Montreal Protocol has curbed the use of ozone-destroying substances.

As it does so, the SCAR team predicts that greenhouse warming will come to dominate the temperature change across Antarctica, as in other parts of the planet.

Doubling of greenhouse gas concentrations in the atmosphere would warm the continent by 3-4C, it says.

The majority of Antarctica is so cold that a rise of this magnitude in air temperature would have little impact.

But more warming of the oceans would speed ice loss still further, the report concludes.

On the basis of declines seen around the Antarctic Peninsula, it would also be expected to bring significant reductions in the abundance of krill, a key foodstuff for baleen whales and other animals.
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