The global shipping industry is on the brink of a significant transition towards low- and zero-carbon fuels, driven by impending regulations from the International Maritime Organization (IMO). A crucial vote is set for mid-October, where over 100 nations will decide on a framework aimed at reducing carbon emissions in shipping. Current fuels, primarily oil-derived, contribute to approximately 3% of global greenhouse gas emissions. Experts are debating the merits of various alternative fuels, with green methanol and green ammonia emerging as frontrunners for sustainable long-term solutions. While biofuels may serve as bridge fuels, their sustainability is contingent on feedstock sources. The transition to alternative fuels will require substantial investment in new technologies and infrastructure, and the outcome of the IMO vote will significantly influence the pace and direction of this shift.