Using rocks to sequester carbon

According to researchers at Columbia University, peridotite rocks could be harnessed to capture carbon dioxide in large quantities, potentially offsetting billions of tons of CO2 emissions each year. The rocks, found in Oman, California, New Guinea and elsewhere, produce calcium carbonate and magnesium carbonate rock (both solids) upon contact with CO2. The researchers have completed successful tests of their theory in Oman, and now want to test on a larger scale. Whether they will reap such successful results elsewhere remains to be seen.

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