... the strength of Earth’s magnetic field has been decreasing for the last 160 years at an alarming rate. This collapse is focused on the great expansion of the Southern Hemisphere, known as the South Atlantic Anomaly, and extending from Zimbabwe to Chile. The magnetic field strength is so weak there that it’s a hazard for satellites that orbit above the region — the field no longer protects them from radiation which interferes with satellite electronics.

And the field is continuing to grow weaker, potentially portending even more dramatic events, including a global reversal of the magnetic poles. 

Earth’s magnetic field is not normal at south atlantic

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I remember reading about this some years ago but I never saw any other articles nor any follow-up so I eventually took it for sensationalism. If we are on the verge of the overdue Pole Reversal, then enjoy your modern technology - it's gonna go away for a while...
My weird sense of humor is looking forward to it!

Not normal. What is any more? What does normal even mean?

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