> In a closed system, you can't reverse (...) Why is it a closed system? We get ... | Hacker News

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		thinkling on Oct 6, 2021 \| parent \| context \| favorite \| on: We need to take CO2 out of the sky > In a closed system, you can't reverse (...) Why is it a closed system? We get solar energy from outside the planet and it's among the top proposed tools to deploy.

robomartin on Oct 6, 2021 [–]

Energy in -> blue ball in the sky -> energy out.

No magical vacuum cleaner to fix anything.

Now, go do the math.

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