F
Fred Bloggs
Guest
It\'s called biological carbon fixation, estimated to be 258 Gt annually, I have read estimates putting it as high as 750Gt. Latest estimates for annual anthropogenic emissions are roughly 30 Gt. It\'s not going to take much of change either way to turn the planet from a uninhabitable steam room into an uninhabitable chunk of ice with all the interconnected, and largely unknown, mechanisms of thermal balance runaway instability waiting in the wings..
https://en.wikipedia.org/wiki/Biological_carbon_fixation
https://en.wikipedia.org/wiki/Biological_carbon_fixation