The 6th Hydrogen & Alternative Fuels Conference in Monaco, organized by the Prince Albert II of Monaco Foundation, saw maritime stakeholders converging to address decarbonization challenges. Discussions stressed the urgency to translate intentions into tangible actions. Key players like Bernard d’Alessandri and Virginie Hache-Vincenot emphasized the necessity of cooperation to find practical solutions. Pierre Ceccaldi highlighted the escalating greenhouse gas emissions from maritime transport and the role of technology and regulations in curbing them. INOCEL's hydrogen-powered boat showcased the compatibility of hydrogen with high performance, encouraging wider adoption of such technologies. The conference also addressed the pressing issue of reducing air pollutants in yachting, with a focus on local pollutants and a call for anticipatory measures. Initiatives like the SEA Index® extension and the integration of fine particulate matter and nitrogen oxide into environmental assessments mark significant steps towards cleaner oceans and air. Industry experts like Carlo Bertoglio stressed the need for integrated solutions to maximize the impact of available technologies. Overall, the conference reflected a positive outlook towards embracing clean energy solutions and collaborative efforts to drive sustainable practices in the maritime sector.