this post was submitted on 10 Sep 2023
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I'm not sure I'd trust the marketing produced by a for-profit company trying to sell a solution.
https://www.usgs.gov/news/featured-story/making-minerals-how-growing-rocks-can-help-reduce-carbon-emissions#:~:text=Carbon%20mineralization%20is%20the%20process,escape%20back%20to%20the%20atmosphere.
USGS article on it. You can also read up on these reactions in chemistry text books or online. If still unsatisfied, you could conceivably get a rock and some carbon and run the reaction yourself.
Regardless, the process is well characterized from a chemistry standpoint.
Sell it?! Who are they selling science to? What would they even sell? They didn't patent the technology of putting carbonated water near rocks
It looks like they're planning to sell offsets: