TL;DR - For a long while, the pole was slowly moving toward Canada. Then for about a decade, it slowly moved toward Europe. Now since about 2012, it is slowly m

TL;DR - For a long while, the pole was slowly moving toward Canada. Then for about a decade, it slowly moved toward Europe. Now since about 2012, it is slowly moving toward Greenland. Based on gravity measurements, it looks like changes in global groundwater levels and icecaps are responsible for the changes in direction.