Looks like we need to worry only about comets and asteroids. :-)
Earth's magnetic field is not about to reverse and
trigger global catastrophe. The Independent
https://www.independent.co.uk/news/science/earth-magnetic-field-flip-poles-why-not-facts-weak-a8329921.html
Earth's magnetic field is not about to reverse, study finds
Phys_Org, April 30, 2018
https://phys.org/news/2018-04-earth-magnetic-field-reverse.html
The paper is:
Maxwell Brown, Monika Korte, Richard Holme, Ingo
Wardinski and Sydney Gunnarson, 2018, Earth’s
magnetic field is probably not reversing.
Proceedings of the National Academy of Sciences
April 30, 2018. 201722110; published ahead of print April 30, 2018.
https://doi.org/10.1073/pnas.1722110115
http://www.pnas.org/content/early/2018/04/24/1722110115
Yours,
Paul H.
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