H2 cars are cleaner than ICE using hydrocarbons so it would be...

H2 cars are cleaner than ICE using hydrocarbons so it would be useful in smog amelioration. However the C atom from CH4 doesn’t magically disappear. Focusing solely on the upstream side is smoke and mirrors promulgated by the industry. Green H2 produced from electrolysis of H2O from renewables should not be used in the same context . Clearly if governments permit blue H2 and this makes me money, then so be it but let’s not misrepresent blue for green. The same argument would support burning coal for electrolysis, gas is less polluting but is still not optimal. As to the energy inefficiency of the heating and catalysis of the CH4 I am not sufficiently educated to expound on but I am cognisant that it exists. Like EV’s you need to look at the total carbon footprint not just the end user data. Specifically my concern with your promotion of a H2 plant is that the jurisdiction is California which is unlikely to agree, or at least be more cynical.