18 September 2019
The summer melt of the Arctic sea ice is nearly done and the numbers are flirting with being the 2nd lowest on record. 2012 is the lowest and this year will not be as low but still at alarming levels. The real change is the loss of the multi ice that lasts from year to year. This “old” ice is nearly gone and you can see it disappear in this animation from NASA:
The ice levels now are likely the lowest in the last 1500 years according to a 2011 paper in Nature.
Here is the Arctic Sea Ice Extent from the NSIDC. Note that this year is the blue line.