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this post was submitted on 27 Jul 2023
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what about this? (scroll down to the "this could be big" section) https://www.vesta.earth/.
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.