If the earths magnetic poles do switch it's not like we'll wake up one fine day and find all our compasses pointing to the south. The switch is a process that takes anywhere from 100 to a few thousand years to complete.
One cool thing about a pole switch is that we may see things like the Aurora Borealis on the equator.
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Flanked by life and the funeral pyre. Putting on a show for you to see.
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