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by richmarr
4337 days ago
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Not just possible. Likely. The Brunhes–Matuyama reversal was 780k years ago and the average gap is only 450k years http://en.wikipedia.org/wiki/Geomagnetic_reversal. Such reversal events can cause thousands of years of fluctuating protection from solar radiation. I'd be fascinated to see a study of how we might protect ourselves during such an event. Sadly I imagine nobody wants to be the guy that spent billions on EM shielding 50,000 years before anyone needed it. |
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