ts a systematic approach to review shipping emissions and the evolution and implementation of the IMO GHG Reduction Strategy. The thesis examines IMO regulations and measures, emphasizing research and development for sustainable marine fuels. As the maritime sector faces increasing pressure to reduce greenhouse gas emissions, alternative fuels present a viable pathway toward achieving reduction targets and promoting sustainability. The study investigates their application in internal combustion engines and their uptake by the industry. The objective is to comprehend the interplay between the IMO GHG Strategy, evolving regulations, and ship technologies, offering a comprehensive understanding of the potential of these fuels. The analysis aims to assess the uptake of alternative fuels and identify key trends in the shipping industry, revealing significant shifts in fuel preferences among different fleet types and highlighting the industry's energy transition pathways.