Climate Change - Arctic sea ice

The Arctic includes an ocean covered by sea ice.



Arctic sea ice melts back in Summer, and then refreezes in Winter.

The area of Arctic sea ice is largest in March each year, and at its lowest each September.
The NSIDC also publish this graph.

More graphs and other data are also available from the Arctic Data Archive System, operated by the Japanese Arctic Environmental Observation Center.

A new study shows Arctic sea ice area since 1850:
Research suggests the remarkable decline of  Arctic sea ice over the last century is far beyond anything seen for a long time:

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