Geomagnetism - 4 of 13
Geomagnetism FAQs - 13 Found
No. There is no evidence of a correlation between mass extinctions and magnetic pole reversals.
Earth’s magnetic field and its atmosphere protect us from solar radiation. It’s not clear whether a weak magnetic field during a polarity transition would allow enough solar radiation to reach the Earth's surface that it would cause extinctions. But reversals happen rather frequently--every million years or so--compared to mass extinctions, which occur every hundred million years or so.