this post was submitted on 11 Nov 2023
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Form a Fortune article:
From a Techwire article:
I could not find any article on how much the carbon cost was to run such a facility and move the raw materials to/from it.
Well, they're using renewable energy to power it. The limestone looks like it's just constantly recycled, so it would be just the initial transport there. Their output is tanks of compressed carbon dioxide which is sent to a concrete maker, so it really depends on how far away the concrete maker is. There's a thing called industrial symbiosis, where manufacturers co-locate so that one factory's waste easily becomes the factory next door's input.
I'm not very familiar with all this but shouldn't we be hiding the CO2 somehow? I feel like concrete is just going to nudge the can down the road until it breaks down in like 50 years
Roman concrete structures still exist after 2000 years. If you want to "hide" the CO2 somehow, then concrete doesn't seem like a bad idea.