Unprecedented Arctic Sea Ice extent highest for date since at least 2004

Image: Steve Goddard from
Ocean and Ice Services | Danmarks Meteorologiske Institut
DMI note:

Total sea ice extent on the northern hemisphere since 2005. The ice extent values are calculated from the ice type data from the Ocean and Sea Ice, Satellite Application Facility (OSISAF), where areas with ice concentration higher than 30% are classified as ice.
The total area of sea ice is the sum of First Year Ice (FYI), Multi Year Ice (MYI) and the area of ambiguous ice types, from the OSISAF ice type product. However, the total estimated ice area is underestimated due to unclassified coastal regions where mixed land/sea pixels confuse the applied ice type algorithm. The shown sea ice extent values are therefore recommended be used qualitatively in relation to ice extent values from other years shown in the figure. In late 2012 sea ice climatology and anomaly data will be available here. 


  1. I find information like this so much in contradiction of other sources.
    When I read : https://www.skepticalscience.com/Has-Arctic-sea-ice-recovered.htm, I seem to get a much more measured argument.
    Can you advise please as to your opinion of this site?

    1. Skeptical Science (SS) is a paid disinformation site. It is run by a cartoonist John Cook who likes to dress up in German SS costumes.

      It is derided by most scientists -see eg


      This article debunks the SS item you quoted:

      And see how other SS's "myths" have been debunked



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