August 23, 2018
Scientists in recent years have predicted that Earth’s magnetic field could be gearing up to ‘flip’ – a shift in which the magnetic south pole would become magnetic north, and vice versa.
Such an event could have catastrophic effects, wreaking havoc on the electric grid and leaving life at the surface exposed to higher amounts of solar radiation.
While it’s previously been thought that these reversals take place at intervals of hundreds of thousands of years, a new study suggests it could happen in just a matter of centuries.
Scientists estimate Earth’s North and South magnetic poles flip every 200,000-300,000 years.
But, it’s been roughly 780,000 years since the last such event, causing many to suspect we’re overdue.
This article was posted: Thursday, August 23, 2018 at 10:23 am