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ItsAConspiracy t1_jacuwuk wrote

Reply to comment by hex_ev in How much electricity required to hypothetically reverse manmade climate change? by armzngunz

> we would need more energy than the energy previously hold in all that burnt fossil fuel

That would be necessary if we had to split all the CO2 into carbon and oxygen. But we don't have to do that; we can inject the CO2 into deep basalt formations, where it will turn into rock.

So we just have the energy cost of concentrating the CO2 from the air and pumping it underground, which is a lot less.

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hex_ev t1_jacwmh7 wrote

Interesting, a more simple and practical solution

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