Experts urge a rapid transition to electrification for European ferries, which are currently polluting ports and contributing to toxic air pollution. A study reveals that 1,043 ferries emitted 13.4 million tonnes of CO2 in 2023. Major polluted ports include Dublin, Barcelona, and Las Palmas. Electrification could reduce emissions by up to 42% and improve air quality, with many ferries already cheaper to operate as electric. The average ferry age is 26 years, highlighting the need for modernization.