In my specific case, I was looking into travels between Beppu (Japan) and Osaka. There is a direct ferry line, but other routes exist of course (also trains).
I wonder how a ferry and a plane would compare
In my specific case, I was looking into travels between Beppu (Japan) and Osaka. There is a direct ferry line, but other routes exist of course (also trains).
I wonder how a ferry and a plane would compare
You mean bunker oil not diesel. First, it is what is left over from fracking so in itself isn’t polluting much extra in production. Then, as a ship is buoyant, it burns much less fuel per ton-km so it pollutes exponentially less than any other form of motorised transport. Planes are at the other end of the scale.