Reply to post: Re: But even if this would happen...

North will remain North for now, say geo-magnetic boffins

Jellied Eel Silver badge

Re: But even if this would happen...

It's fun. For satellites, I guess it depends on their altitude, and then the effects of any reduced magnetic field. So increased radiation exposure may mean more errors, damage and shorter lifespan. But then if it also affects our atmosphere, if that's heated and expands, drag increases. So may need more orbital corrections, which uses fuel & again could shorten lifespan. And might mean any new space station would need a load more radiation shielding.

And for biologists, may help answer questions about which animals or birds use magnetic fields to navigate. But most of this stuff is based on geological timescales, so an 'abrupt' change could be 100ka+ away, +/- a LOT of uncertainty. The movie 'Core' shows a possible solution, and I'm sure The Boring Company would be up for a fresh slab of tax money to prepare ourselves.

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