Possible means to reduce air pollution from marine vessels in the Baltic Sea are analyzed in the research project BSR InnoShip. Today, we know that these emissions play significant roles in the eutrophication of the Baltic Sea that leads to severe disturbances in vital ecosystems. The latest estimates indicate that more than 50 percent of deposited nitrogen comes from marine transportation. The research group from Södertörn University primarily contributes with analyzes of communication barriers and how communication between key stakeholders could be improved.