In this July 16, 2017, file photo a radar shows sea ice ahead of the Finnish icebreaker MSV Nordica as chief officer Harri Venalainen navigates the ship through the Beaufort Sea while traversing the Arctic’s Northwest Passage. The magnetic north pole is wandering about 34 miles (55 kilometers) a year. At the end of 2017 it crossed the international date line. That means it’s not even the same day at the new magnetic north pole as it is at the spot of 2010’s magnetic north pole. It’s leaving the Canadian Arctic on its way to Siberia. (AP Photo/David Goldman, File)