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A comment on Robotic 'trees' can turn CO2 into concrete. Parent comment

Re:Robotic 'trees' can turn CO2 into concrete by 08-15 on Tuesday September 11, 2018 @12:16PM (#17961077)
I have a better idea. Leave the coal in the ground. You get the same result with literally no work!
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Re:Robotic 'trees' can turn CO2 into concrete by village-idiot on Wednesday September 12, 2018 @10:45PM (#17975551)
Way too reasonable, it'll never happen.
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