14/02/2013: Using new measurements from ESA’s ice mission, scientists have discovered that the volume of Arctic sea ice has declined by 36% during autumn and 9% during winter between 2003 and 2012. Since 2008, the Arctic has lost about 4,300 cubic kilometres of ice during the autumn period and about 1,500 cubic kilometres in winter.

Satellite records from Cryosat show a constant downward trend in the area covered by Arctic sea ice during all seasons, but in particular in summer. The past six years have seen the lowest summer ice extent in three decades, reaching the lowest point last September at about 3.61 million sq km.

A team of scientists led by University College London has now generated estimates of the sea-ice volume for the 2010–11 and 2011–12 winters over the Arctic basin using data from ESA’s CryoSat satellite.

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