With ten years of hyped claims about Arctic sea ice declining, it takes effort to remember that ice in the Northern Hemisphere isn’t going away. This year’s monthly average for September (the annual minimum) is slightly lower than 2017, but still well above 2007. MASIE shows a surplus of 300k km2 and SII shows 450k km2. As a result, both linear trends are slightly positive, though I would call it a “plateau, ” as opposed to a “death spiral.”
Twelve Days in Nunavut
Previous posts described how the Northwest Passage was treacherously laden with ice this year. The image above shows the flash freezing in this region over the last twelve days. Sept. 18 the CAA ice extent (Canadian Arctic Archipelago) was 321k km2, close to its annual minimum. Yesterday MASIE showed 606k km2, a increase of 90% in that region.
The graph shows MASIE reporting Arctic ice extents totalling…
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