Methane might not be the best thing to make in a CO2 capture plant. Methane has an especially high greenhouse effect, and it seems to leak when transported arou

Methane might not be the best thing to make in a CO2 capture plant. Methane has an especially high greenhouse effect, and it seems to leak when transported around for fuel. And it's not a good fuel for the applications where grid energy or batteries don't work, like aviation. It'd might be better to turn CO2 + H2O into a longer-chain hydrocarbon suitable for jet or diesel engines.