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Comment by nwiswell

Yes. CO2 can be frozen out of the air as snow at sufficiently low temperatures.

This could be done at scale in central Antarctica using enormous refrigerating complexes[1], but it would be the most ambitious engineering project ever undertaken by humanity.

Generally this is not seriously discussed by experts as a solution to global warming not because it is not feasible, but because it would diminish the sense of urgency and discourage the much more prudent and affordable approach of simply reducing emissions.

[1] https://journals.ametsoc.org/view/journals/apme/52/2/jamc-d-...

parent nwiswell 4 years ago

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