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A comment on Melting Greenland Is Awash in Sand. Parent comment

Re:Melting Greenland Is Awash in Sand by p0nce on Saturday August 17, 2019 @11:58AM (#20724626)
Isn't that the same limestone that can capture carbon if put into the oceans? or is it olivine?
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Re:Melting Greenland Is Awash in Sand by pfdietz on Saturday August 17, 2019 @12:06PM (#20724660)
Olivine is usually discussed. However, I think limestone would enable some CO2 uptake, by formation of bicarbonate ions. The calcium ions would have to stay in solution, though.
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