[ryandamm]

Valid concern, but it seems like the glide path—continued carbon dioxide buildup and climate change—might eventually be worse than the unknown unknowns. (I suppose how one makes that decision is the challenge, hence the need for further study, per the article.)

This is one of the few carbon capture approaches that appears to be able to approach global scale, so I'm rooting for it. Even enhanced weathering suffers from needing to move billions of tons of rock, but scattering trace minerals seems pretty high leverage. The sheer mass of material that must be removed from the atmosphere is otherwise very intimidating.