"crushed rock stored 0.15 tons of carbon dioxide per hectare (2.47 acres)". (.15 * 2000lb)/2.47 = 300lb/2.47 = ~121.5lbs/acre of carbon uptake. After applying 41tons/acre of olivine. How is this feasible? You ship railroad cars of volcanic rock dust, spread it on a field, and watch it take up a sandbag size amount of carbon per acre. Is it continuous or a onetime thing?