Shipping companies—encouraged by regulation, customer demand, investor pressure, and internal goals—are searching for ways to decarbonize their fleets. Greener-fuel possibilities abound in the maritime world, and the industry is in a period of experimentation and exploration to understand the implications of adopting such fuels. To find out how industry leaders are thinking about future fuels, the Global Centre for Maritime Decarbonisation, the Global Maritime Forum, and the Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping recently conducted a survey (with analytical support provided by McKinsey) of shipping companies. Collectively, these companies own and operate fleets—including container ships, tankers, dry bulkers,…