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@HistoPol

Taking place over the first 3 billion years of earth existence, But by the time CO2 levels had dropped to 7000 ppm which I think was about 600 million years ago. The levels were too low for the inorganic processes that’s when organic sequestration began to dominate..

But even here it turns out That life began to colonize land although away from direct sunlight 3.1 billion years ago.

Life has been shaping the earths chemistry and climate for billions of years.