Arctic ice could vanish within 10 years: Scientists
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 percent faster than the
current estimates.
New satellites being operated by
the European Space Agency paint a grim picture of 900 cubic km of ice
already having melted over the last year.
This is 50
percent higher than the current estimates from environmentalists, they
claim. It is suggested that the increase is down to global warming and
rising greenhouse gas emissions, the Daily Mail reports.
The
entire region could be eventually free of ice if the estimates prove
accurate. This would trigger a ‘gold rush’ for oil reserves and fish
stocks in the region.
“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 previously suspected,” said Seymour
Laxon, of the Centre for Polar Observation and Modelling at University
College London (UCL), where CryoSat-2 data is being analysed.
Scientists
launched the CryoSat-2 probe in 2010 specifically to study ice
thickness. Until then most studies had focused on the coverage of the
ice. Submarines were also sent into the water to analyse the ice. The
methods are said to have given a picture of changes in the ice around
the North Pole since 2004.
Data from the exploration
shows that in winter 2004, the volume of sea ice in the central Arctic
was approximately 17,000 cubic km. This winter it was 14,000 km,
according to CryoSat.
Chris Rapley, professor at UCL
added: “Before CryoSat, we could see summer ice coverage was dropping
markedly in the Arctic. But we only had glimpses of what was happening
to ice thickness. Obviously if it was dropping as well, the loss of
summer ice was even more significant.”
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