Magnetic reversal events are fairly common often happening multiple times within a million year period. All life has gone through this multiple times. It may ca

Magnetic reversal events are fairly common often happening multiple times within a million year period. All life has gone through this multiple times. It may cause some disruptions to some species but most will not really notice much change. I’m skeptical that a reversal would lead to the extinction of Neanderthals unless they were already on the brink of extinction already. Our own civilization might suffer more as we are dependent on specialized agriculture that could be disrupted. At the very least you would want to invest in a good parasol and some sunglasses. https://en.wikipedia.org/wiki/Geomagnetic_reversal#:~:text=The%20rate%20of%20reversals%20in%20the%20Earth%27s%20magnetic,place%20in%20the%20span%20of%203%20million%20years https://en.wikipedia.org/wiki/Geomagnetic_reversal#:~:text=T....