The shipping industry, known for its significant contribution to global greenhouse gas emissions, is taking steps to reduce its environmental impact by increasing the adoption of zero-emission fuels. At COP29, global industry leaders pledged to enhance the usage of green hydrogen in the maritime sector, aiming for a target of 5-10% by 2030. This ambitious goal necessitates a substantial increase in green hydrogen production, with at least 5 million tonnes required for shipping alone. Challenges include the need to double global green hydrogen production, establish a reliable supply chain, and deliver zero carbon fuels to vessels safely and sustainably. Collaboration and partnerships across the maritime value chain are highlighted as essential for a successful transition to renewable fuels, emphasizing the importance of collective efforts in achieving climate goals. The article underscores the significance of green hydrogen in promoting sustainability and combating greenhouse gas emissions in the shipping industry.