[JRandomFreeper]

I don't get why a magnetic field reversal would cause very many problems. Most electronics (excluding magnetic compass) work just fine with or without the earth's magnetic field.

/johnny

[cripplecreek]

Even in the event of a pole reversal we wouldn’t be left unprotected. The earth would still have a great deal of residual magnetism.

[21twelve]

I don’t think the reversal would matter too much in most everyday things. The thing that may be of concern is a weakening of the field, as it keeps many of the nasty cosmic rays from reaching the earth.