Mysterious Link between Earth’s Magnetism and Oxygen Baffles Scientists

Mysterious Link between Earth’s Magnetism and Oxygen Baffles Scientists The strength of Earth’s magnetic field and the amount of oxygen in its atmosphere seem to be correlated—and scientists want to know why By Davide Castelvecchi & Nature magazine A group of Dimetrodon’s hunting in a Permian era environment. Stocktrek Images, Inc./Alamy Stock Photo The strength…

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