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I’ll note that this is a tiny and incredibly expensive part of what needs to happen
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Would that be done through mineralizing the carbon that’s dissolved in the water? I remember hearing about some mineral you could spread in the water that would react with the carbon. I wonder what it would take to produce and spread that at scale with a low re-emission rate.
There is discussion around enhanced rock weathering, but none of it is a proved technology at this point, even at pilot scale, in the way that direct air capture is.
That’s a bingo!