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It may seem that way, but unfortunately the only way of reducing unsustainable transport is to make it less convenient. Much of that involves adding time, hence water-based is best. Needless to say, I'm not in favour of ocean liners, either. Small to medium ships would be best.
Obviously, it's completely counter-intuitive in the age of hypermobility, but all motorised transport is unsustainable, whether electric or other kinds of fuel-based. The only way is reduction and abandoning our science fiction-inculcated ideas about machine travel on demand.
Oliver Schick-
Small to medium ships would be best.
Ships got bigger because bigger was more efficient, economically and energetically. The physics cannot be defeated by your wishing it away.
Electric transport, including ships and planes, is fully sustainable if the generation of electricity is sustainable, which it certainly is in some cases for values of sustainable up to the reasonable durability limit of human civilisation.
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the only way of reducing unsustainable transport is to make it less convenient. Much of that involves adding time, hence water-based is best.
Can you show your working please
gbj_tester
chez_jay
Whatever number of people you need to move, air liners are still at least a whole order of magnitude less poluting than ocean liners.
Cutting travel volume by banning the most efficient method is ridiculous.