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A comment on Cement is the source of 8% of the world's CO2 emissions (2018). Parent comment

Re:Cement is the source of 8% of the world's CO2 emissions (... by pjc50 on Sunday September 27, 2020 @02:53AM (#24604760)
The good news is that there's very little calcium carbonate on the moon, so you'll have to build it out of something else. Probably thermally fused silicates.
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