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
Since it says per person per km I assume it only counts modes moving people? So not transportation of cargo or emergency services. Of course these should be counted in a different way and I don’t think anyone would suggest replacing emergency or medical planes with any other mode of transport regardless of emissions. A source for that graph would be nice though, so we actually know what was counted.