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@HistoPol

Learning about deep time of life on this planet, you gain a real appreciation of just how this world has been shaped by life.

Because at its formation, the Earth had something like 250 times level of carbon dioxide in the atmosphere of chemistry of the oceans and the rest of the atmosphere was entirely different with methane everywhere in sulfur and iron compounds very high levels compared to today.

The majority of carbon dioxide sequestration was in organic
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