Are volcanoes behind the oxygen we breathe?

ScienceDaily
Mar 10, 2025, 1:42 pm541 ptsHotTop
It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing photosynthesis. Researchers provide a mechanism to explain precursor oxygenation events, or 'whiffs,' which may have opened the door for…

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