A previous post reported that Arctic Sea Ice has persisted this year despite a wavy Polar Vortex this spring, bringing cold down to mid-latitudes, and warming air into Arctic regions.  Now in June, after tracking in deficit the sea ice extent is matching the 14-year average on day 159.  Note that SII (Sea Ice Index) since mid-May has been showing 200 to 400k km2 more ice than MASIE, and currently the two datasets have converged on a value of ~11.25 M km2.

Note that on the 14-year average, during this period ~1.7M km2 of ice extent is lost, which 2021 is matching matched, as did 2007.  Both 2020 and 2019 were much lower than average at this data, by ~600k and ~700k respectively.  

Why is this important?  All the claims of global climate emergency depend on dangerously higher temperatures, lower sea ice, and rising sea levels.  The lack of additional warming is documented in a post Adios, Global Warming

The lack of acceleration in sea levels along coastlines has been discussed also.  See USCS Warnings of Coastal Floodings

Also, a longer term perspective is informative:

The table below shows the distribution of Sea Ice across the Arctic Regions, on average, this year and 2007.

Region2021159Day 159 Average2021-Ave.20071592021-2007
 (0) Northern_Hemisphere1124099911259536 -18538 11316498-75500 
 (1) Beaufort_Sea1019264964689 54575 100043418830 
 (2) Chukchi_Sea849650820007 29642 82827521375 
 (3) East_Siberian_Sea10189391060847 -41907 1065467-46528 
 (4) Laptev_Sea719152797804 -78652 750975-31824 
 (5) Kara_Sea786077768820 17257 805583-19506 
 (6) Barents_Sea253238260182 -6944 312729-59491 
 (7) Greenland_Sea664297581528 82769 57972484573 
 (8) Baffin_Bay_Gulf_of_St._Lawrence755645803058 -47412 811860-56215 
 (9) Canadian_Archipelago802846802905 -60 78390818938 
 (10) Hudson_Bay10229971058859 -35862 1027039-4042 
 (11) Central_Arctic32334013215315 18085 3235047-1646 
 (12) Bering_Sea5941570145 -10729 62751-3336 
 (13) Baltic_Sea08-8 0
 (14) Sea_of_Okhotsk5447153989 482 510313440 

The main deficits are in Laptev, East Siberian Baffin and Hudson Bays, offset by surpluses in Beaufort, Chukchi and Greenland Seas.

via Science Matters


June 9, 2021