@dennis That’s not necessarily the case if you use fuel cells.
Anyway, the move towards such sources does not necessarily have to be because of the impact of F1 on environment (since that’s minuscule anyway. Cows’ farts are far more damaging)
Rather, through competition, the rate of technological development multiplies, just as the technological advances during wars.
Though not strictly relevant to this topic, I personally think it’s a shame that FIA banned Rotary-Wankel engines. Such technological innovation should be encouraged, not banned for the sake of competition.
The cool thing about hydrogen is that while many of hydrogen powered cars use fuel cell technology to power electric motors, hydrogen can also be used, with very little modification, on conventional internal combustion engines. The only problem of hydrogen is storage. You need a tank with insane pressure to have usable range.