I see a lot of negativity about Hydrogen as a possible way forward amidst the climate crisis.
My suggestion is that we use it to power large scale cargo and passenger transport.
If we inflate gigantic cigar-shaped membranes and put engines on it, then sling the cargo and/or passengers underneath in some sort of container, it'll make current modes obsolete very quickly.
We could call it, say, an "atmospheric boat".
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