I once heard a scientist speculate on what would happen if hydrogen could be produced cheaply and used to power automobiles. Its combustion product would be water vapor.
And H2O2, AKA hydrogen peroxide.
The greenies marxists will never allow free energy and water. . Never. Misery is the source of their power. Someone could invent the Mr Fusion and they’ll cry it hurts women and minorities and is systemically racist.
Hydrogen is a really small molecule that really, really wants to escape/leak when contained. It also creates embrittlement issues with steel, which tends to get used in IC engines and cars in large quantities. These are not trivial problems.
“I once heard a scientist speculate on what would happen if hydrogen could be produced cheaply and used to power automobiles. Its combustion product would be water vapor.”
Even then, Biden would sign an EO to ban it, citing “too much steam is heating the earth!”