chloric acid (HCl) being neutralized by silicate rocks (House et al., 2007). Given that neutralization of CO2 requires an equivalent amount of base (1:1 molar ratio), the logistics and resource demands for neutralizing a significant fraction of the 2 Pg C (~1014 moles CO2) per year taken up by the ocean are likely to be prohibitive. But such mitigation strategies might be feasible on a local or regional scale.



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