The UK Civil Aviation Authority has established the H2Wo initiative to advance the use of hydrogen as a green fuel in the aviation industry. The group, comprised of regulatory bodies, government, industry, academia, and community stakeholders, aims to ensure the safe development and implementation of hydrogen technology in aviation. By focusing on powering aircraft, certifying fuel usage, and enhancing airport infrastructure, the project intends to pave the way for a scalable and efficient hydrogen aviation fuel system. Sophie O’Sullivan, from the UK Civil Aviation Authority, emphasizes the critical role of hydrogen in achieving zero-emission flights and highlights the importance of continuous innovation and safety in the sector. With applications opening in July 2024, the H2Wo initiative seeks to accelerate the industry's transition towards greener and safer aviation practices by enabling the testing and utilization of hydrogen. The Hydrogen Challenge, initiated in 2023 with government funding, promotes collaboration between industry and academia to assess the potential of hydrogen fuel, address regulatory gaps, and shape future Jet Zero policies. Through innovation sandboxes and risk assessment tools, the project aims to collect valuable data and insights to guide the widespread adoption of hydrogen technology in aviation. The overall sentiment of the article is positive, showcasing a proactive approach towards leveraging hydrogen as a key element in achieving sustainable aviation practices.