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A comment on Direct conversion of CO2 to solid carbon by Gallium-based liquid metals. Parent comment

Re:Direct conversion of CO2 to solid carbon by Gallium-based... by patrickk on Wednesday January 19, 2022 @04:17AM (#29991502)
I'm not sure if it's more efficient than the methods you mentioned, but Project Vesta makes some pretty bold claims using the carbonate-silicate cycle. More details:

https://news.ycombinator.com/item?id=20403570

https://www.vesta.earth/

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