Cato Institute atmospheric scientist Ryan Maue looked at high Arctic temperature data going back to 1958 shows that warm spikes are nothing new. An EKG-like pattern is clearly visible in the data, but there is a warming trend. Data before the satellite-era — 1976 — has some problems, so it’s hard to say the current spike is for sure a record. Most of the Arctic warming has come during the winter months, Maue said.
Arctic sea ice extent has stabilized in summer and has slightly increased since 2007.
Ice has also got considerable thicker in the last decade as well
In fact, Arctic temperatures have varied little in the last decade
Temperatures recently are no higher than in the 1930s and 40s. The cycle we can see is connected to the AMO.
The claim that the Arctic is warming at twice the rate of the rest of the world, is simply a reflection of the upward part of the cycle. Changes in Arctic temperatures are invariably amplified, either warming faster or cooling faster.
On longer timescales there is nothing at all unusual about Arctic temperatures:
As for the Greenland ice sheet, also touted in the report, nothing unusual is happening