The Magnetic Pole Shift?

A geomagnetic reversal, which is sometimes called a “polar reversal” or a “pole shift”, is a change in the Earth’s magnetic field such that the positions of magnetic north and magnetic south are interchanged. The Earth’s field has alternated between periods of normal polarity, in which the direction of the field was the same as [...]

Source: http://usahitman.com/pole-shift/

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