Judged:
1
1
1
It takes a lot longer than that for most removal processes once they have been 'saturated'.
The three primary removal processes are:
1: Ocean solution (near saturation already)
2: Plant growth (zero sum game for most time)
3: mineral sequestration ( magnesium silicates to clays) Takes a LONG time.
Expect the problem to exist at whatever level we let it peak at for at least a thousand years afterwards.