[sinanju]

I thought the biggest dread was that an unstable geomagnetic field in the process of switching would temporarily lay us bare to the cosmic rays.

[cripplecreek]

Yeah that’s what I was thinking as well.

[colinhester]

I thought the biggest dread was that an unstable geomagnetic field in the process of switching would temporarily lay us bare to the cosmic rays.

No,no,no....the biggest dread is all the magnets falling off the fridge. Imagine the ensuing chaos.....C

[Citizen Tom Paine]

I thought that a magnetic field reversal would let more cosmic radiation down onto the Earth’s surface which would greatly increase the mutation rate for all exposed life exposed to it.