The commitment of scientists from Scotland to decarbonise global economies has led to the discovery of an underwater treasure that could transform the shipping industry. Oasis Marine, based in Glasgow, has developed the Oasis hydrogen buoy system, which utilizes a series of buoys connected to offshore wind farms to produce hydrogen through electrolysis. This innovative system provides a cheaper, emission-free refuelling infrastructure for ships, offering a more accessible solution compared to traditional hydrogen storage methods. The technology has been tested and certified for implementation, marking a significant milestone in the utilization of renewable energy for marine transportation. By tapping into the abundant seawater resources, the Oasis buoys not only supply hydrogen for ships but also generate electrical energy, contributing to the reduction of CO2 emissions in the shipping sector. The synergy with other renewable energy infrastructures like floating wind power plants enhances the potential of this underwater treasure, aiming to revolutionize the industry. The development of green hydrogen technology, exemplified by the Oasis Hydrogen Buoy, signifies a crucial step towards a sustainable future, overcoming previous obstacles in cost and storage. With these advancements, Scotland is on the brink of declaring the end of diesel in shipping and heralding a new era of clean, efficient marine transportation.