2018-01-26

ALERT: Earth's Magnetic Field Is Changing Fast


Deep within the Earth, a fierce molten core is generating a magnetic field capable of defending our planet against devastating solar winds. The protective field extends thousands of miles into space and its magnetism affects everything from global communication to animal migration and weather patterns. But this magnetic field, so important to life on Earth, has weakened by 15 per cent over the last 200 years.

And this, scientists claim, could be a sign that the Earth’s poles are about to flip. Experts believe we're currently overdue a flip, but they're unsure when this could occur. If a switch happens, we would be exposed to solar winds capable of punching holes into the ozone layer. The impact could be devastating for mankind, knocking out power grids, radically changing Earth’s climate and driving up rates of cancer. 


Clips, Images credit: ESO, ESA/HUBBLE & NASA

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