There's a Link Between the Earth's Atmosphere and its Magnetic Field – Universe Today

There’s a Link Between the Earth’s Atmosphere and its Magnetic Field Universe Today
NASA Scientists Find Ties Between Earth’s Oxygen and Magnetic Field NASA Science (.gov)
Earth’s Magnetic Field Might Weirdly Be Controlling the Air We Breathe, Scientists Say Popular Mechanics
Surprising discovery shows a strong link between Earth’s magnetic field and atmospheric oxygen levels Phys.org
Mysterious Link between Earth’s Magnetism and Oxygen Baffles Scientists Scientific American