The maritime sector, responsible for over 80% of global trade volume, faces the challenge of reducing its 3% share of global greenhouse gas emissions while ensuring economic growth. To achieve decarbonization, industry players must update their fleets and embrace sustainable fuel alternatives, with the maritime sector considering renewable fuels like methanol and ammonia. The Clydebank Declaration, endorsed at COP26, aims to create emission-free maritime routes globally, fostering green shipping initiatives. Spain, highlighted in the decarbonization process, is set to lead in developing green shipping routes, with collaborations planned with countries like the UK, Italy, and the US. The industry's commitment to sustainability is further emphasized by efforts like the first green hydrogen maritime corridor between Rotterdam and Algeciras, showcasing a partnership between Cepsa and European companies. This corridor, facilitating energy supply across Europe, underscores the importance of green hydrogen in ensuring a secure and independent energy future for the continent. With hydrogen expected to play a significant role in the energy mix by 2050, the maritime industry's transition towards sustainable energy sources and infrastructure signifies a positive step towards a greener and more efficient future.