[LockAndLol]

Also allows for a lot of automation since everything is guided. The whole system could work seamlessly with little human intervention.

Not to mention that rail has a much lower CO2 output since trains have to push air out of the way, not liquid.

[bkor]

> Not to mention that rail has a much lower CO2 output since trains have to push air out of the way, not liquid.

That's not accurate.

https://en.wikipedia.org/wiki/Energy_efficiency_in_transport... mentions:

"The specific energy consumption of the trains worldwide amounts to about 150 kJ/pkm (kilojoule per passenger kilometre) and 150 kJ/tkm (kilojoule per tonne kilometre)"

And for a container vessel:

"Assuming a standard 14 tonnes per container (per teu) this yields 74 kJ per tonne-km at a speed of 45 km/h (24 knots)."

This was calculated for a 14.000 TEU container vessel. Nowadays these container vessels are 20.000 TEU easily. Meaning, the energy per TEU is nowadays lower than above quoted figure.

See also e.g. https://www.quora.com/Why-are-large-cargo-ships-much-more-fu...

[mavhc]

But making renewable energy boats is very hard, whereas renewable energy trains is much easier