Three to four percent of EU-wide emissions are emitted by ships either arriving or departing from European ports. In the future, this share is likely to increase if nothing is done to decarbonize shipping. With the FuelEU Maritime Regulation, the EU Commission now wants to change this, but the proposal is not as ambitious as it needs to be. This fits in with all the global efforts to date for climate-friendly shipping, as Lukas Scheid reports.