this post was submitted on 27 Jul 2023
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Why sucking CO2 out of the atmosphere can’t undo all the effects of climate change (www.theverge.com)
submitted 1 year ago by [email protected] to c/[email protected]
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Carbon dioxide emissions can turn dry places into deserts, and that’s hard to undo.

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[–] [email protected] 3 points 1 year ago (1 children)

And there is no version of averting the worst possible results of climate change that does not include CCS and DAC, but I've never seen a remotely serious model that relies on either of them being used to do more than bump something a percentage point or two one way or the other.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago) (1 children)

what about this? (scroll down to the "this could be big" section) https://www.vesta.earth/.

[–] [email protected] 8 points 1 year ago* (last edited 1 year ago)

I am innately skeptical of tech startups with huge promises and extremely limited quantifiable field results. Dumping huge quantities of chemically-reactive sand onto global coasts just sounds like it has major potential downsides.

It's promising. There's lots of promising DAC methodologies. We should pursue them.

I find stuff like the CarbonCure/Heirloom partnership more compelling, and even that I think would be foolish to bet heavily on compared to rolling out more wind/solar/EGS along with grid enhancements.