http://www.bbc.com/news/science-environment-36303046
As everyone here is probably aware 2016 has really broken temperature records for just about every month this year.
http://www.usatoday.com/story/weather/2016/05/10/climate-spiral-rising-global-temperatures/84185746/
but the real problem is not this, the arctic this year is melting at an unprecidented rate, and we run into the basic problem that sea ice is thinner than it has ever been.
https://nsidc.org/news/newsroom/arctic-sets-yet-another-record-low-maximum-extent
The models are conflicted at present.
This is not an exaggeration, Ice most quickly erodes from the bering sea inward, as of yet is has never eroded the all the ice around Greenland. This year could be exceptional.
One model suggest climate oscillation in the arctic, year one year with markedly different climate conditions. Another risk is that the buffering effect of ice on Greenland is lost and Greenland begins a highly accelerated melting.
https://nsidc.org/arcticseaicenews/