>Carbon capture of course technically works. But you typically end up dumping the CO2 back in the air for things like fuels and plastics after they are expended. So, it's not that meaningful ultimately. You take fossil carbon, you burn it, you capture it, you create another fuel, and you dump it in the air. Because we simply don't capture the overwhelmingly vast majority of fossil carbon that we process and use. Using the carbon twice is a modest improvement. Three times even better. It's not that much of an improvement. Most carbon capture is stupid like that but it sounds nice if you are trying to green wash your CO2 intensive business. Optics and marketing are the main driver for carbon capture schemes. But technically it's just adding cost to things that are already quite expensive.
I have heard about a proposal to blow up a huge nuclear bomb in deep sea basalt deposits that would dissolve massive amounts of CO2 to the bottom of the ocean. Bomb scale proposed is SF for now but would be interesting to see a PoC experiment with a large warhead.