The magnetic north pole—the one that we rely on to calibrate compasses and complex navigation systems—has always been a little squirrely. Driven by the unpredictable swirls and flows in the Earth’s iron core, the magnetic pole had been drifting around northern Canada for hundreds of years.

from https://www.smithsonianmag.com/smart-news/magnetic-north-pole-has-gone-walkabout-prompting-scientific-update-180971418/
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