The maritime industry is facing significant changes as global efforts to reduce greenhouse gas emissions intensify. The International Energy Agency (IEA) has stressed the importance of clean energy solutions, particularly green hydrogen and ammonia, to help the shipping sector cut emissions and meet climate goals. With ships currently accounting for about 3% of global greenhouse gas emissions, there is a pressing need to decarbonize swiftly. The industry aims to achieve zero emissions by 2050, but this journey is complex and requires advancements in technology, safety measures, and policy support. Green hydrogen, produced from renewable sources like wind or solar power, along with ammonia derived from green hydrogen, are positioned as low-carbon fuel options that offer a cleaner alternative to fossil fuels. These fuels are particularly valuable for long-distance shipping where battery-powered ships are not yet practical. To reach the International Maritime Organization's emission reduction targets, the widespread adoption of alternative fuels, including green hydrogen and ammonia, is essential. However, the industry faces challenges such as storage limitations due to hydrogen's low energy density, safety concerns related to flammability and toxicity, and high production costs for green hydrogen and ammonia. Overcoming these obstacles requires innovative storage solutions, enhanced safety systems, and cost reductions through scaling and technological advancements. Policy support plays a crucial role in accelerating the transition to cleaner fuels in shipping. Proposed measures include clean fuel subsidies, research grants, carbon pricing mechanisms, and the establishment of international standards to guide progress. Some countries like Norway and the EU have already implemented regulations to promote green fuel adoption in the maritime sector. The urgency to act stems from the industry's significant carbon emissions, projected to increase dramatically without intervention. Companies are exploring hydrogen and ammonia-powered vessels, while initiatives like the Poseidon Principles are driving investments in cleaner ships. The green fuel market is expanding rapidly, driven by regulatory requirements and investor interest, with forecasts indicating substantial growth in global demand for green hydrogen and its derivatives by 2050. In conclusion, the maritime sector is at a pivotal moment in its decarbonization journey, with green hydrogen and ammonia emerging as key solutions to steer the industry towards a sustainable and low-carbon future.