Geomagnetic reversal

One idea proposed in these films involves a geomagnetic reversal (often incorrectly referred to as a polar shift by proponents of this hypothesis), which could be triggered by a massive solar flare, one with energy equal to 100 billion atomic bombs.^[64] This belief is supposedly supported by observations that the Earth's magnetic field is weakening,^[65] which indicates an impending reversal of the north and south magnetic poles. Scientists believe the Earth is overdue for a geomagnetic reversal, and has been for a long time, even since the time of the Mayans, because the last reversal was 780,000 years ago.^[66]Critics, however, claim geomagnetic reversals take up to 5,000 years to complete, and do not start on any particular date. Also, NOAA now predicts that the solar maximum will peak in 2013, not 2012, and that it will be fairly weak, with a below-average number of sunspots.^[67] In any case, there is no scientific evidence linking a solar maximum to a geomagnetic reversal.^[68] A solar maximum would be mostly notable for its effects on satellite and cellular phone communications.