Reducing Greenhouse Gases: Analysis of Lifecycle Emissions of Marine Fuels

Executive Summary

Clear Seas has commissioned Alion Science and Technology (Canada) Corporation to conduct a comprehensive literature analysis of the climate change impacts of a range of marine fuels. The fuel types to be investigated in this study include marine diesel, biofuels, gas fuels, alcohol fuels, and synthetic fuels. The study will first assess the full lifecycle greenhouse gas (GHG) emissions associated with each of the marine fuels, from extraction to combustion. Secondary factors for consideration include air pollutants, fuel properties and performance, safety, storage, and feasibility for use on existing ships. The results are intended to support policy makers and industry considering alternative fuels in accordance with the International Maritime Organization’s commitment to reduce the marine shipping industry’s GHG emissions by 50% by 2050.