Not only does this scientist state that there was a Geomagnetic Field Reversal 12,400 years ago (Not 700,000 years), he also says it coincided with the last wave of mass extinction of terrestrial animals.


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This is that reversal from 12,400 years ago:

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Additional Info:

They are hiding this magnetic pole cycle from us now. You can only read about it in old, hard to find sources. A Magnetic pole cycle of 25,000 years. Halfway through it at 12,400 years ago we had the Gothenburg Reversal. Now 12,400 years later, the cycle is completing during our time. We're watching it happen. It's what Climate Change really is.



And this:

Gordon Stanger, veteran geologist, Answering this question:

Is it possible for Earth to experience Polar Shift?

-"Yes, it is not just possible, but highly probable.

Detailed palaeomagnetic data have revealed how the Earth's magnetic field changes in a polarity shift. In relative terms (time scale inaccurately known) there is a slow decrease to <10% of the normal field intensity. After an uncertain interval the field intensity picks up to some 20 or 30% of the normal field intensity during a relatively brief spike. Then another low field intensity interval, and finally it picks up to full field intensity - of either normal or reversed polarity.

This has never happened in real-time during the scientific era, so the effects are necessarily speculative. Amongst the expected effects would be:

Vulnerability of satellites, power lines and communications to the effects of solar storms.

Increased UV, and hence increased incidence of skin cancer.

All sorts of changing physico-chemical processes in the upper atmosphere, of which the weakening ozone layer would be the most alarming.

On average these magnetic flips occur about every 11,000 to 12,000 years - although there is a great deal of variation. On this basis the next one is about due.

It won't be lethal. Neanderthals, Denisovans and Hom.sap's prehistoric forebears survived the last magnetic flip, but it will be inconvenient, and probably not without a serious health impact."



And this from the New York Times Science Section in the 1990's:


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