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Scientists Predict a Million-Fold Drop in Oxygen — Here’s What it Means for Earth’s Future
A recent study published in Nature Geoscience explores the future of Earth’s atmosphere, revealing that a dramatic decline in oxygen levels will likely suffocate most complex life forms on our planet. This shift, predicted to occur within the next billion years, will return Earth’s atmosphere to conditions resembling those before the Great Oxidation Event about 2.4 billion years ago. The research draws on detailed models that factor in the Sun’s…
Although nitrogen gas makes up 78% of the Earth's atmosphere, most organisms, from humans to animals to microorganisms, choose oxygen as their source of respiration. Why does life favor oxygen, even though it is a very reactive and biologically damaging element?
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