Comment by rgmerk

All the vaguely plausible industrial use cases for CO2 are a rounding error compared to the amount coming out of vent stacks and engine exhausts.

The one exception is making synthetic fuels, but in the vast majority of applications it’ll be cheaper to use electricity from clean sources (renewables/fission/fusion/unicorn farts) directly rather than pay all of the efficiency losses of electricity -> thermal -> chemical -> thermal -> (end use).

Ballpark, running a car on synfuels takes 10x the energy of running it on batteries charged directly from renewable sources.