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this post was submitted on 13 Nov 2023
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Sure. But turning it into building material would be even more amazing?
Be nice, but we're talking about remote locations with a high cost of transport. It's unlikely to be cost-effective
Even when it is bury for no value vs sell to replace carbon-producing materials? I don't buy it. Very few places are so remote that there is zero local-ish demand for building materials and they have to build facilities and support workers in those remote places instead.
Coal mines in Appalachia fit multiple criteria for this to be effective.
The older ones, sure. Mountaintop removal ones, probably not so much.
Burying it deep underground instead is likely to impose a high cost of transport as well.
They're proposing about 10 feet, which isn't that far.
Agreed. However, burying it ten foot underground in a remote location, sealing it to keep moisture out, and then continuing to monitor it for hundreds of years is not trivial.