According to
NASA, the Arctic has lost more sea ice this year than at any time since satellite
records began in 1979.Scientists involved in the calculations state it is element
of a basic change. The sea ice limit grows throughout the cold Arctic winters
and shrinks when temperatures climb over. NASA says the amount of sea ice was
1.58m sq miles compared with a previous low down of 1.61m sq miles.
The thickness
of the sea ice is also declining, so overall the ice volume has fallen far -
although estimates vary about the actual figure. According to Walt Meier from
the National Snow and Ice Data Center that collaborates in the measurements, in
the situation of what's happened in the last several years and all through the
satellite trace, it's a sign that the Arctic sea ice cover is basically
changing. However Prof Wadhams opinion is that the prediction was now coming true
and the ice had become so thin that it would inevitably vanish.
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