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Published: Wednesday 24 July, 2013

isabel marant sneakers online shopping isabel marant sneakers online shopping ´╗┐Antarctic melt to have big impact on rising sea



LONDON Reuters Melting ice in West Antarctica could add tens of centimetres to rising sea levels over the next century, according to a report by the Scientific Committee on Antarctic Research SCAR on Tuesday.



Global sea levels are estimate isabel marant sneakers online shopping d to rise by a total of 1.4 metres 4 feet 7 inches by 2100.



We can see the West Antarctic glaciers are shrinking at a rate fast enough to contribute to a sea level rise of 1.4 m by 2100 but it will be no more than that, SCAR executive director Colin Summerhayes told reporters at a media briefing in London.



We are ruling out some of the mo isabel marant sneakers online shopping re extreme sea level rises forecast for the next 100 years. Intergovernmental Panel on Climate Change IPCC report in 2007 forecast a sea level rise of isabel marant sneakers online shopping 1859 cms 724 inches by 2100 but did not take into account the possible increasing melt of Greenland and Antarctica.



A study last week forecast global sea levels to rise by up to 2 metres by 2100.



The 400page SCAR report is based on evidence from 100 scientists from 13 countries and is the first comprehensive review of the impact of rapid global warming on Antarctica. summit in Copenhagen where world leaders hope to thrash out a new climate treaty.



OZONE HOLE



A hole in the ozone layer has protected much of Antarctica from the effects of global warming, but 90 percent of glaciers along the Antarctic Peninsula have been lost, the report found.



Sea ice has actually increased by 11 percent around the Antarctic since 1980 due to stronger winds, changes in atmospheric circulation and the isolating effect of a hole in the ozone layer.



However, sea ice is declining around the Antarctic Peninsula as stronger winds bring warm, wet air into the region. Warmer water heats glaciers from underneath, causing them to break up.



By the late 21st century, greenhouse gases are expected to double while the ozone hole should heal. The net effect will be strengthening winds and sea ice will decrease by a third.



Over the next 100 years sea ice is going to decrease. Ice is increasing at the moment but it wont be like that when the ozone hole goes and we will lose 33 percent of sea ice, Summerhayes said.



One effect will be on the oceans ecosystem. Krill, a food source for penguins, whales and fish, will likely halve.



Corals, algae and other species could become extinct as they fail to adapt to warmer sea temperatures and increased ocean acidity. Alien species could thrive and invaders, such as stone crabs from South America, could severely impact the ecosystem. isabel marant sneakers online shopping

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