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submitted 1 year ago* (last edited 1 year ago) by sabbah@lemmy.world to c/world@lemmy.world
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[-] scarabic@lemmy.world 17 points 1 year ago

I was reading about how carbon capture from the air is going to be a trillion dollar industry. Just SMH. It’s so much easier to not emit than it is to recapture. But since we’ll never get China and India off of coal, I guess we have to do something.

[-] Niello@kbin.social 4 points 1 year ago* (last edited 1 year ago)

Other problems with your post aside, you think it's good enough to emit less but not worth it to actively invest in getting the excess carbons out? The problems they are solving overlap, but they are not the same set of problems.

[-] luthis@lemmy.nz 6 points 1 year ago

The energy required to take carbon out of the atmosphere is at best, double what it took to put it in the atmosphere in the first place. There's seriously strong economic reasons that this is a bad idea.

[-] Niello@kbin.social 3 points 1 year ago

And it's perfectly normal for technology to advance and become more effective and efficient over time.

[-] BartsBigBugBag@lemmy.tf 5 points 1 year ago* (last edited 1 year ago)

There are hard limits on recapture efficiency. The only way to make it remove more than it creates is to use energy like geothermal. Even then, the production of a carbon capture facility generates enough emissions that it would take years of constantly running, and you’d only ever reach it if you’re using 100% clean energy to power it.

[-] schroedingershat@lemmy.world 1 points 1 year ago

Grind up basalt slightly more than we normally do. Spread it out.

It's exothermic.

Rate limited, but more than enough to undo the damage if we stop digging up 95% of fossil fuels.

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this post was submitted on 06 Jul 2023
204 points (94.3% liked)

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