hoytedow
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Until they freeze.Arctic sea lanes for ships is a good idea.
When north goes south: Is Earth's magnetic field flipping? https://astronomy.com/news/2021/09/when-north-goes-south-is-earths-magnetic-field-flippingWhen north goes south: Is Earth's magnetic field flipping?
It's been 780,000 years since this happened — and some scientists say that Earth's magnetic poles are long overdue for a switch.
Something odd is happening to Earth’s magnetic field. Over the last 200 years, it’s been slowly weakening and shifting its magnetic north pole.
New Evidence of 200 Million-Year Cycle for Earth’s Magnetic Field https://www.google.com/amp/s/scitechdaily.com/new-evidence-of-200-million-year-cycle-for-earths-magnetic-field/amp/The findings of a new study by the University of Liverpool provides further evidence of an approximately 200 million-year long cycle in the strength of the Earth’s magnetic field.
They found that between 332 and 416 million years ago, the strength of the geomagnetic field preserved in these rocks was less than quarter of what it is today, and similar to a previously identified period of low magnetic field strength that started around 120 million years ago. The researchers have coined this period “the Mid-Palaeozoic Dipole low (MPDL).”
The implications are that a weakening Van Allen Belt will let more solarThe Earth’s magnetic field shields the planet from huge blasts of deadly solar radiation. It is not completely stable in strength and direction, both over time and space, and has the ability to completely flip or reverse itself with substantial implications.