The science is so far from settled, the current arguments are not between Scientists. It's mostly between the propaganda machine with those easily manipulated and the actual skeptics.
It is still not understood in detail why the Arctic is warming more than twice as strong as other regions of the earth. The measurement campaign on Spitsbergen, which will run until the end of May, was the first joint deployment of mini research aircraft developed in Germany in a polar region.
In recent years, the Arctic has increasingly become a focus of climate research, due to the fact that the climate changes observed so far in the Arctic have a much stronger impact than in other regions.
Maybe because of Solar Forcing? Weaker atmosphere? Don't bother refuting these, because they don't know.