Silver Cat
Gold Member
First of all, there is more than enough of Ca already dissolved in the sea water. Second, why do you think that we need to sequester 15Gigatons of CO_2?It do "migrate" in many ways, most fast and important - in CaC0_3.how does the CO2 migrate down the water column?
Where does the Calcium come from? ... for each mole of CO2, you need a mole of Ca ... so to sequester 15 Gigatons of CO2 per year, we'll need around 12 Gigatons of Calcium every year ...