Scientists studying ancient ocean fossils found that the Arabian Sea was better oxygenated 16 million years ago, even though the planet was warmer than today. Oxygen levels only plunged millions of ...
Earth’s magnetic field and atmospheric oxygen appear to have moved in sync for half a billion years, pointing to a surprising connection between the planet’s deep interior and life-supporting ...
Scientists at the University of California, Irvine have discovered that climate change is causing nitrous oxide, a potent ...
Ancient enzymes show life’s nitrogen signal stayed unchanged for billions of years, helping scientists read early Earth.
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