2018 vs 2012 what is the difference ? about 200,000 km2 in extent

~Because Hudson and Baffin Bay + Kara sea still have not melted completely

     Kara had a late freeze up South of Novaya Zemlya  in 2018,  but still has some sea ice,  while 2012 close to 0 one day later (selected due to clouds).

Hudson + Baffin Bay with still lots of sea ice compared to 2012,  meaning the large difference is in Beaufort sea,  which as we know,  is flooded still with a continuous stream of sea ice.  WD July 19 2018