Remember how we were destroying the ozone layer, and the proof was a big honking hole over the South Atlantic? Here's an article suggesting that the "South Atlantic Anomoly" is directly related to a drop in the strength of the magnetic field of Earth by about 10%, and thus possibly corresponding ozone depletion. I wondered if there was something along those lines going on when I heard that the magnetic field was weakening...

Yeah, yeah... Fark.