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In 1 Billion Years, Dwindling Oxygen Levels May Suffocate Life On Earth – IFLScience
Take a deep breath in and savor the moment, because it isn’t going to last. A new study estimates that Earth’s oxygen will only last for around 1 billion y

Take a deep breath in and savor the moment, because it isn’t going to last. A new study estimates that Earths oxygen will only last for around 1 billion years, spelling catastrophe for much of the life that inhabits the planet.
As reported in the journal Nature Geoscience, two scientists have predicted that Earths oxygen-rich atmosphere will return to an oxygen-poor, methane-rich composition much like the conditions seen in early Earth before the Great Oxidation Event around 2.4 billion years…
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