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Robert Winner

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Geomagnetic reversal

A geomagnetic reversal is a change in the Earth's magnetic field such that the positions of magnetic north and magnetic south are interchanged.

This happens about every million yeas the last one 780,000 years ago. Since there is not set schedule this could occur any time.

What consequences could we expect .... How would you prepare ....

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    Dec 14 2012: Robert,
    Here is a link that talks about magnetic field reversals

    http://www.geomag.bgs.ac.uk/education/reversals.html

    According to other sites that I have found, the poles will likely shift when the field is at its weakest, and although the field is currently weakening, it is still a long ways off to where a shift is eminent. According to the site I provided, it says that studies have shown no link between pole shifts and species extinction. Two conclusions is that it won't happen in your lifetime, and when it does, not much to worry about it anyway.

    Also look at Wikepedia
    http://en.wikipedia.org/wiki/Geomagnetic_reversal
    There is no specific interval where the poles reverse. The fact that we are overdue according to averages means nothing as to how close we are today.

    There is a book "Pole Shift" by John White. It mirrors the movie "2012" in its assessment of what happens in a pole shift. The copy I have is a later edition with a 10 year update. It provides further information by the author that refutes the whole concept of a pole shift happening anytime soon, or that it will produce any affects as was previously thought. Hollywood loves to jump on ideas like this, but that's Hollywood. They've destroyed much of the earth since I was a kid, but I'm still here out of harms way.

    The only preparing I will do is to ignore any further media hype on the subject.

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