Standardized logistics emission calculation in inland navigation: Status quo and challenges ahead

The emissions measurement is an ebential prerequisite for managing the decarbonization of transport. Carbon accounting should be consistent, transparent and comparable across all transport modes. This paper creates an overview of emission calculation in inland navigation and discuss the results of the different calculation tools (1) EcoTransIT World, (2) CarbonCare and (3) manual calculation with the GLEC Framework 2.0 based on a selected transport case. Our results show that the emissions for IWT differ between the three tools. The reason for the broad range of results is that the different tools use different input parameters for the emission calculation which are not harmonized. We conclude that more effort is needed in the IWT sector that the models reflect the emissions as accurately as possible. A precondition for this is having scientifically validated data and emission factors.