In this engaging discussion, David Emberson, an associate professor at NTNU's Department of Marine Technology, sheds light on the pressing need to decarbonize the shipping industry. He explores the challenges of relying on fossil fuels and presents innovative alternatives like LNG, ammonia, and methanol. Notably, David highlights ammonia's potential as a sustainable marine fuel despite its combustion issues. The conversation also covers the importance of port infrastructure and collaborative efforts in pioneering new propulsion technologies to achieve a sustainable maritime future.