Abstract. Maritime logistics plays a critical role in global trade while contributing significantly to greenhouse gas emissions, with shipping accounting for approximately 2.5 per cent of global emissions and the entire logistics chain contributing close to 11 per cent. The study analyses the structural and operational challenges of achieving net-zero emissions by 2040, emphasising the decarbonisation of vessels, ports, warehousing, and inland transport. Using a qualitative content analysis approach, the research systematically reviews corporate reports, academic literature, and industry data to assess the viability of alternative fuels, particularly green methanol and green ammonia. Although the adoption of green-fuel-powered vessels has commenced, major barriers persist in relation to fuel availability, cost, scalability, and safety. The findings indicate that decarbonisation requires more than technological readiness, necessitating long-term investment, regulatory support, and regional fuel production strategies, particularly in Southeast Asia. The study highlights the urgency of integrated, system-wide innovation to meet global climate targets in maritime logistics.
Rene Piil Pedersen (Mon,) studied this question.