[aerohead]

Originally Posted by freebeard

You might find interesting today's cite on S0:

How the Geomagnetic Field Influences Life on Earth – An Integrated Approach to Geomagnetobiology
Weronika Erdmann, H. Kmita, J. Kosicki & Ł. Kaczmarek

Or even the smack-down B. Davidson gives to NASA.

edit: It's not climate change, it's the end of the Holocene!

S-O doesn't give us enough information, seems to oversimplify an extremely complex issue, and without mentioning all the other viable explanations for phenomena, makes the leap to geomagnetic reversal as THE causal factor for life-related issues.
Without all the specificity, S-O's conclusions are extremely dubious.
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The 'Younger Dryas' was not a 'global' event, it was a limited, regional event. It doesn't qualify as an 'observation' for a 'climate' event.
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One important piece of the puzzle involves sea-floor spreading, which has accompanied all known geomagnetic reversals. The Matuyama chron / Cobb Mountain Reversal, 1.1-million years ago is one example.