Sure whithout immediate and deep CO2 emission cut and (maybe) active removal action SAI will only postpone the main problem, and maybe make it worse...

SAI is deployable in small times, but is guaranteed that the others vital measures are put in action with same rapidity?

And how will affect photosynthesis, and it's CO2 removal action? Acid rain? Deployed in a small amount of time how will perturb atmospheric and sea circulation? CO2 antropogenic perturbation take round 200years (fast at geologic scale), now we input a 1-year scale global perturbation.. I see many unknows...