Birdnow's Aviary

November 29, 2021

Flipping Magnetic Field

Timothy Birdnow

Interesting.

Ancient kauri trees capture last collapse of Earth's magnetic field
science.org

Radiocarbon levels in this and several other pieces of wood chart a surge in radiation from space, as Earth's protective magnetic field weakened and its poles flipped, a team of scientists reports today in Science. By modeling the effect of this radiation on the atmosphere, the team suggests Earth's climate briefly shifted, perhaps contributing to the disappearance of large mammals in Australia and Neanderthals in Europe. "We're only scratching the surface of what geomagnetic change has done," says Alan Cooper, an ancient DNA researcher at the South Australian Museum and one of the lead authors of the study.

Posted by: Timothy Birdnow at 09:51 AM | Comments (37) | Add Comment
Post contains 115 words, total size 1 kb.

1 Well, here's why one should take this whole article with the proverbial grain of salt, and probably regard it as a complete fairy tale. It contains the ineffable phrase, "the team ran a climate model," which renders all following it fictional.

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2 Yeah, good point, Bill.

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