Comment by jaggederest

3210 gigatonnes of CO2 in the atmosphere (410ppm)

275 ppm (Target PPM, based on pre-industrial levels)

3210 gigatonnes - ((3210 gigatonnes / 410) * 275) = 1057 gigatonnes to remove.

Advertised scale: 4000 tons per year

(1057 gigatonnes / 4000 tons per year) = 264250000 years

reasonable timeline: 30 years

30 years / 264250000 years = 8808333x increase needed. Call it roughly 10^7 times faster.

So, a lot.