Actually, as been posted, it is normal for the poles to swtich every 150,000 years, so global warming has nothing to due with it. The magnetic field directs radiation and ionic particals toward the poles. The problem is, it usually takes a few thousand years for the poles to reverse. During that time there may be no polar opposites or the polar opposites may land deep down the latitude lines directing the radiation toward populated areas. Thats the scary part.
|