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A comment on Direct conversion of CO2 to solid carbon by Gallium-based liquid metals. Parent comment

Re:Direct conversion of CO2 to solid carbon by Gallium-based... by js8 on Wednesday January 19, 2022 @02:53AM (#29991032)
> We need some way to recapture it if we want to return to pre-industrial levels

To return we probably need to capture well below the "safe" boundary of 350 ppm of CO2, to engage all the feedback loops that will refreeze the arctic etc.

But also, why bother? Biggest problems from climate change are due to the fast change, which causes destruction of ecosystems (including human habitat). Even if we refreeze, we won't revert these losses.

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Re:Direct conversion of CO2 to solid carbon by Gallium-based... by dr_dshiv on Wednesday January 19, 2022 @04:26AM (#29991563)
That's why we do solar radiation management first (e g., Marine cloud brightening), to prevent the rapid change. Then we try to fix the atmospheric carbon balance. That will take a while.
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Re:Direct conversion of CO2 to solid carbon by Gallium-based... by DemocracyFTW on Wednesday January 19, 2022 @06:06AM (#29992203)
> solar radiation management first [...] Marine cloud brightening

you mean, like, throwing a spanner into a machinery we hardly understand and see whether "it sticks"? Give me a hundred planets and start the trials!

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Re:Direct conversion of CO2 to solid carbon by Gallium-based... by dr_dshiv on Thursday January 20, 2022 @01:35AM (#30005557)
Maybe read about it: https://www.nature.com/articles/d41586-021-02290-3
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