Tesla CEO Elon Musk, whose company has become synonymous with electric cars, is among the most vocal critics of using hydrogen as a transportation fuel, citing its inefficiency relative to batteries and the high cost of the fuel cell stacks that make electric power from hydrogen and oxygen.
Yet makers of trucks and commercial vehicles that need to travel long distances aren’t convinced that multi-ton, lithium-ion battery packs that need relatively long recharge times are the best option. (Notably, Musk also doesn’t launch his SpaceX rockets with batteries, but instead a blend of kerosene and liquid oxygen that spew climate-warming black carbon, or soot.)
SpaceX is progressing toward using methane made from atmospheric CO2 + solar power.
Hydrogen, while interesting for power storage, still has significant efficiency & reliability issues and certainly has fuel infrastructure lacking. It provides good competition against batteries, but battery tech is evolving rapidly.
water vapor is the most responsible for global warming due to the greenhouse effect. Why would they be okay with hydrogen as a fuel source unless.. it isn’t about global warming at all.