Operationally - not really, other than a clean exhaust. Environmentally - yes.Is there some advantage to that over a diesel ICE? I can't think of anything compelling, though I can think of many compelling disadvantages.
No CO2 footprint in the fuel, assuming you use green hydrogen generated using renewables rather than blue hydrogen produced from natural gas.
Probably more likely to use hydrogen to power a fuel cell connected to an electric motor than in an ICE. Even then, storage for small forms of transport like cars and boats is likely to favour batteries over hydrogen.
[Edit: Sorry, replied to this without checking how far behind I was in the thread. All of what I said has been covered before]
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