“The current behaviour of magnetic north is something that we have never observed before," Dr William Brown, global geomagnetic field modeler at BGS, said in a statement earlier in December; "Magnetic north has been moving slowly around Canada since the 1500s but, in the past 20 years, it accelerated towards Siberia, increasing in speed every year until about five years ago, when it suddenly decelerated from 50 to 35 km per year, which is the biggest deceleration in speed we’ve ever seen."
