All this energy does NOT add temperature increase to the Arctic. Once ice-free conditions exist in the Arctic, any other added energy WILL raise Arctic water volume temperatures. About sixty times the volume of melted Arctic ice in the form of water will then be affected by any excess energy.
There is a dynamic that tends to be left out. That is the jet stream. Pre 2000 the jet stream usually was a buffer between weather systems in the Arctic and the rest of the NH. Now more often then not it is the main engine that is either pushing heat into it or pulling cold out of it. This means that whereas pre 2000 the sun was the biggest factor of heat for the Arctic, now location of the jet stream is by far the biggest factor.
Lots of people have said the same. It may be true. However continuous Present High Arctic over-temperatures (PHAB
s or FAB
s) have been increasing since the latter 1950's & early 60's, when continuous over-temperatures were ~ 30 to 40 straight days. Then FAB
s rose to 90 straight days, 100+ straight days, & 140 straight days. From latter 2016 thru early 2017, FAB
(1) sizzled for 230+ straight days. 2017 spring & summertime direct solar heat, which has been languid for half century(+?), & low for 11+ years(including 3+ year period setting a 100 year record low), dropped High Arctic temperatures below average. During the latter 2017 to early 2018 period, with the sun below the horizon, & once more AGW effects became prominent, FAB
(2) lasted for 215+ continuous days.
These long continuous days of over-temperatures are more than just the effects of a wavering jet stream. When the sun is below the horizon, AGW effects become more evident in the High Arctic.... on a continuing basis.