The earth’s core has shifted numerous times in the past and it happens once every few thousand years.
The bad part is if the magnetic field shifts it may expose the Earth to volatile solar winds from the sun that could send us all back to the stone age.
Based on computer models, Peter Olson and Renaud Deguen of Johns Hopkins University in Baltimore, Maryland theorize that one side of the earth’s core melts while the other grows. This means that the magnetic field of the earth is found on the side of the core that is growing.
The earth’s magnetic field has been shifting east for the past few hundred years, leading scientists to think a shift may be in the near future.
Bruce Buffett of the University of California, Berkeley, says the authors present an intriguing proof of concept with their model.
“They are suggesting very cautiously that maybe this rapid change is somehow suggestive of us going into a reversal event,” he says. “You could imagine if the field were to collapse it would have disastrous consequences for communication systems and power grids.”