The North Pole is mysteriously moving, and the U.S. governme

The odd thing isthe South Pole isremainingfairly stable
The Washington Post
The North Pole is mysteriously moving, and the U. S. government finally caught up
Sarah Kaplan
1 day ago
Magnetic north is not where it used to be.

Since 2015, the place to which a compass points has been sprinting toward Siberia at a pace of more than 30 miles a year. And this week, after a delay caused by the month-long partial government shutdown in the United States, humans have finally caught up.

Scientists on Monday released an emergency update to the World Magnetic Model, which cellphone GPS systems and military navigators use to orient themselves. It’s a minor change for most of us — noticeable only to people who are attempting to navigate very precisely very close to the Arctic.

But the north magnetic pole’s inexorable drift suggests that something strange — and potentially powerful — is taking place deep within Earth. Only by tracking it, said University of Leeds geophysicist Phil Livermore, can scientists hope to understand what’s going on.

The planet’s magnetic field is generated nearly 2,000 miles beneath our feet, in the swirling, spinning ball of molten metal that forms Earth’s core. Changes in that underground flow can alter Earth’s magnetic field lines — and the poles where they converge. Consequently, magnetic north doesn’t align with geographic north (the end point of Earth’s rotational axis), and it’s constantly on the move. Records of ancient magnetic fields from extremely old rocks show that the poles can even flip — an event that has occurred an average of three times every million years.
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