"Current Sea Ice Extent"
"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 2011 sea ice climatology and anomaly data will be available here."
"http://ocean.dmi.dk/arctic/icecover.uk.php"
"It is time to end the denial."
Mr. Goddard provides the following example from a denier:
"Arctic Watch iOS Released – Second largest ice melt in recorded history
Dec 20, 2011
Unprecedented amounts of new data shows that this trend is accelerating.
NSIDC Director Mark Serreze said, “It looks like the spring ice cover is so thin now that large areas melt out in summer, even without persistent extreme weather patterns.”
http://prmac.com/release-id-35833.htm"
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