Comment by chrisco255

These are very interesting. They do not get covered very often, but these events show climate changes in precipitation and temperature occur on the regular and cause even dramatic events (like the drying of the Sahara) naturally. I'm still trying to piece together what impacts geomagnetic excursions and reversals have on climate. During the last reversal 780,000 years ago the winter Asian monsoon was about 3x stronger than today according to one study I read.