Carbon dioxide I think. But I think it's a fairly balanced process of trees eating CO2 and trees dying and releasing CO2 back. I don't think this action changes

Carbon dioxide I think. But I think it's a fairly balanced process of trees eating CO2 and trees dying and releasing CO2 back. I don't think this action changes the amount of CO2 much since it evens out. Humans in the last 200 years have massively increased the amount of CO2 in the atmosphere by finding carbon buried deep underground and releasing it as CO2 into the air. https://www.co2levels.org/ https://www.co2levels.org/