Earth’s north magnetic pole has been moving across the Canadian Arctic toward Russia for decades, but a new report says it’s been picking up the pace in recent years. The unusually speedy rate of around 34 miles annually has forced scientists to update the World Magnetic Model — used by civilian navigation systems, the North Atlantic Treaty Organization, and US and British militaries — a year ahead of schedule. The magnetic field reverses its polarity every several hundred thousand years, where the magnetic north pole resides at the geographic South Pole. If a reversal happened in our lifetime, it could impact navigation, satellites and communications. However, researchers say we would have generations to adapt for long periods of instability in the magnetic field. (: NOAA)