A fools errand...consider the energy needed to capture and compress the CO2, build the pipelines and inject it underground...all in the name of making green energy. What about the environmental impact of the pipelines and the hazards of transporting CO2 under high-pressure? We can’t build new pipelines to transport clean high energy natural gas or oil because of “environmental” concerns but no problem here.
A tiny bit of CO2 gets injected into the earths crust and a big governments check is written if the government is your friends. That is all this is about, how to make sure not all the carbon credits go to the 3rd world preserving the rain forests.