Originally Posted by
Ex Cargo Clown
Pretty sure combusting methane creates CO2
However if you manufacture the methane using CO2 from the atmosphere, it
can be carbon neutral (depending on the source of the energy used in the process). Same basic theory as biofuels.
Being 'carbon neutral' doesn't have to mean moving away from hydrocarbon fuels - it just means you need to re-think how you source them.
Given the inefficiencies inherent in using H2 as fuel, I remain far from convinced it's a better solution than 'manufacturing' hydrocarbon fuels.