The story in many ways is even more subtle than that -- the carbon cycle (both natural and augmented by human activity) generates ~200Gt of carbon annually, and

The story in many ways is even more subtle than that -- the carbon cycle (both natural and augmented by human activity) generates ~200Gt of carbon annually, and absorbs ~200Gt of carbon. Human activity yields about 6-10Gt annually. So CO2 emissions are increased by about 3% from the natural baseline, but some of this is absorbed by natural increases in carbon sinks. We don't completely understand how the budget works out. https://bg.copernicus.org/articles/19/4431/2022/ https://bg.copernicus.org/articles/19/4431/2022/ is a great summary of some of the more recent work in the area. It's astonishing how poorly we understand this system in the macro.