A LCA study focused on the WTW GHG emissions of FT fuels originating from electrolytic H2 pathways & CO2 sources by Zang, Sun . By considering various process designs & system boundaries, the results showed that FT fuels have 57-65% lower WTW GHG emissions when integrated with corn ethanol production. Moreover, 45% of carbon in CO2 was fixed in FT fuel with an energy efficiency of 58%. Utilizing sources like nuclear/solar/wind electricity, the WTW GHG emissions were reduced by a staggering 90-108% as compared to petroleum fuels.