Hydrogen as fuel is unrelated to fossil fuels. Look it up. Edit: 95% of hydrogen is currently produced from hydrocarbons. BUT Electrolysis https://en.m.wikiped

Hydrogen as fuel is unrelated to fossil fuels. Look it up. Edit: 95% of hydrogen is currently produced from hydrocarbons. BUT Electrolysis https://en.m.wikipedia.org/wiki/Electrolysis_of_water https://en.m.wikipedia.org/wiki/Electrolysis_of_water Hydrogen as a fuel has been tested in buses. Works a proof of concept. This was about hyundai marketing hydrogen as a fuel: https://www.economist.com/science-and-technology/2020/07/04/after-many-false-starts-hydrogen-power-might-now-bear-fruit https://www.economist.com/science-and-technology/2020/07/04/... In the end, it will depend on the energy conversion efficiency that can achieved in the future.