I recently saw a video by Sabine on this paper https://arxiv.org/html/2501.06623v1 that basically proposes blowing up a gigantic nuclear bomb in deep sea basalt deposit and basalt would capture the carbon.

In the paper they did some math on the bomb size needed to reverse 30 years of carbon emissions, and it's huge (orders of magnitude larger than what we tested so far), although I don't understand why it needs to be one huge bomb. I'm sure you could try it with one military head and test the impact.

Interesting approach in any case.