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thebiologyguy84 t1_j5nply3 wrote

Reply to comment by seamus1982 in Earth's inner core seems to be slowing its spin according to new research published in Nature Geoscience. The study authors suggest this might be part of an approximately 70-year cycle where the core speeds up and slows down relative to the rest of the planet. by shiruken

Earths magnetic field is linked to the cores rotations. I would assume the slowing would cause a decrease in the field that will give less protection to the sun's radiation. I'd also assume the change will be negligible for us normies (non-scientists) to worry about.

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martianunlimited t1_j5qjagc wrote

Hopefully.. but I always worry about what would happen if a Carrington Event (https://en.wikipedia.org/wiki/Carrington_Event ) strikes earth in the modern era. We are so dependent on devices that are sensitive to electromagnetic inferences, it's going to be hard to imagine how difficult it would be to replace our transformers if we are caught unaware by such an event

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GeoGeoGeoGeo t1_j5sojkg wrote

It's linked to rotational currents in the liquid outer core, not the solid inner core.

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