I remember reading a theory when I was younger of how the dinosaurs died, it started with the magnetic poles ‘flipping’.
As you know, magnetic north is on the move, and the rate of change is increasing! This is a short concise article, too lazy to read? hit the streaming audio, and have it read to you…
http://science.nasa.gov/science-news/science-at-nasa/2003/29dec_magneticfield/
This NASA Scientist didn’t attempt to blame the change on AGW, how refreshing!
all the best,
GB