Electrolysis will eventually be “clean” as it comes from electricity and water, neither of which require fossil fuels…
The majority of our electricity comes from fossil fuels at the moment, which everyone is working on phasing out in favour of solar/wind/tidal/geo/etc.
The hydrogen then gives you a high energy density solution for things like aeroplanes.
Electrolysis will eventually be “clean” as it comes from electricity and water, neither of which require fossil fuels…
The majority of our electricity comes from fossil fuels at the moment, which everyone is working on phasing out in favour of solar/wind/tidal/geo/etc.
The hydrogen then gives you a high energy density solution for things like aeroplanes.