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Earth's magnetic field works – geologists do not know why



(Nature) Something strange happens at the top of the world. The North Earth's magnetic pole is moving away from Canada and into Siberia, powered by the iron liquid in the core of the planet. The magnetic pole is moving so fast that it forces the experts of the world of geomagnetism in a rare turn.
On January 15, they will update the Global Magnetic Model, which describes the planet's magnetic field and is the foundation of all modern navigation, from the systems that navigate ships at sea to Google Maps of smartphones.

The latest version of the model came out in 2015 and was supposed to last until 2020 – but the magnetic field is changing so fast that researchers have to fix the model now. "The error is steadily rising," said Arno Chulliat, a geomagist at the University of Colorado at Boulder and the National Environmental Information Center of the National Oceanic and Atmospheric Administration (NOAA). {{
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