Gonna be a real bad day if we lose it.
I seem to recall reading that we are coming up on a fairly regular flip of the north/south. I have heard there is some concerns the flips are correlated to the series of mass extinctions. Since a flip could result in a temporary opening to allow in a significant radiation I can see the plausibility.
I gotta go dig the books out again to be sure....darn.
Dec 21, 2012