Polar bear habitat replace for finish July 2021 in comparison with earlier years – ?

From Polar Bear Science

Right here’s a visit down reminiscence lane for Arctic sea ice on the finish of July, which so far as I can see offers no proof {that a} very low sea ice catastrophe is within the playing cards for polar bears this yr.

A have a look at this yr first:

The ice within the Chukchi and Beaufort Seas is primarily thick multiyear ice (brown), because the charts under present (Chukchi and western Beaufort first) from the Alaska Sea Ice Program. Wrangel Island within the western Chukchi Sea, which is a serious denning space and summer season refuge for polar bears, remains to be surrounded by ice (in reality, ice is protecting many of the label for the Chukchi Sea):

Japanese to central Beaufort, from the Canadian Ice Service, for the week of 26 July. That open water offers essential ice-edge feeding areas for seals (and thus searching potential for bears):

Hudson Bay is just about ice free at this level, which is sooner than the previous couple of years however not terribly so, as I defined final week. As I additionally identified in that publish, there may be nearly definitely extra ice current than is proven on this map, as a result of issues that satellites have deciphering melting ice. Oddly, Andrew Derocher has not up to date the monitoring map for his remaining bears with satellite tv for pc collars since 19 July: I assume he’s too busy. Similar factor relating to the City of Churchill downside bear stories, which haven’t been up to date since 12 July. Nonetheless, among the bears that got here ashore close to Churchill and are hanging out on the shore of Wapusk Nationwide Park have been noticed by the stay cams.

Evaluate this yr to earlier years









2013 (the Canadian chart is the one one I’ve in my archive for this era in 2013):

Right here is Canada this yr for comparability to 2013 above:

I don’t see a looming sea ice disaster for 2021, do you see a looming sea ice disaster?


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