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Monday, August 13, 2012

Arctic sea ice may vanish in 10 years Due To Global Warming, Meltdown Is 50% Faster Than Estimates: Experts

London: Arctic sea ice could vanish within 10 years as it is melting much faster than previously believed, thanks to global warming, warn scientists, claiming that the process is 50% faster than the current estimates. Preliminary results from the European Space Agency's CryoSat-2 probe indicate that 900 cubic kilometres of summer sea ice has disappeared from the Arctic ocean over the past year. 

    Sea ice in the Arctic is disappearing at a far greater rate than previously expected, according to data from the first purpose-built satellite launched to study the thickness of the Earth's polar caps, the 'Guardian' reported. 
    This rate of loss is 50% higher than most scenarios 
outlined by polar scientists and suggests that global warming is beginning to have a major impact on the region. In a few years the Arctic ocean could be free of ice in summer, triggering a 'gold rush' to exploit its fish stocks, oil, minerals and sea routes. The new measurements indicate that this ice has been thinning dramatically at the same time. 
    For instance, in regions north of Canada and Greenland, where ice thickness regularly stayed at around five to six metres in summer a decade ago, levels have dropped to one to three metres. 
    "Preliminary analysis of our data indicates that the rate of loss of sea ice volume in summer in the Arctic may be far larger than we had pre
viously suspected," said Dr Seymour Laxon, of the Centre for Polar Observation and Modelling at University College London (UCL). 
    "Very soon we may experience the iconic moment when, one day in the summer, we look at satellite images and see no sea ice coverage in the Arctic, just open water," Laxon said. 
    The consequences of losing Arctic's ice coverage, even for only part of the year, could be profound. Ocean temperatures will rise and methane deposits on ocean floor could melt, evaporate and bubble into atmosphere. AGENCIES

GOING, GOING, GONE?

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