But what if you apportion the fuel usage over the items transported? Presumably the ship carries far more items than the truck.
This is already taken into account: Shagie's table is based on [1], which is per kilogram-kilometer
[1] https://climate.mit.edu/explainers/freight-transportation
This is already taken into account: Shagie's table is based on [1], which is per kilogram-kilometer
[1] https://climate.mit.edu/explainers/freight-transportation