The Earth has been through literally hundreds of magnetic field reversals before. The fact that the ecosystem has survived this in the past strongly implies it will continue to survive this in the future.
This does not mean that we should not harden our civilization against a magnetic field reversal, since that has never survived such an event before.
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timeasmymeasure
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Date: 2009-07-22 03:29 pm (UTC)This does not mean that we should not harden our civilization against a magnetic field reversal, since that has never survived such an event before.