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What will happen when Earth’s north and south poles flip

What will happen when Earth’s north and south poles flip

Did you know that Earth has two North Poles? There’s the geographic North Pole, which never changes. And there’s the magnetic North Pole, which is always on the move. And right now it’s moving faster than usual.

Over the past 150 years, the magnetic North Pole has casually wandered 685 miles across northern Canada. But right now it’s racing 25 miles a year to the northwest.

This could be a sign that we’re about to experience something humans have never seen before: a magnetic polar flip. And when this happens, it could affect much more than just your compass.

Alanna Mitchell: Right now on the surface of the planet, it looks like it’s just a bar magnet. Our compasses are just pointing to one pole at a time because there’s a dominant two-pole system.

But sometimes, Earth doesn’t always just have a single magnetic North and South Pole. Evidence suggests that, for hundreds to thousands of years at a time, our planet has had four, six, and even eight poles at a time. This is what has happened when the magnetic poles flipped in the past. And when it happens again, it won’t be good news for humans.

Now you might think, eight poles must be better than two. But the reality is that: Multiple magnetic fields would fight each other. This could weaken Earth’s protective magnetic field by up to 90% during a polar flip.

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