A recent study by the University of Sheffield has identified the United States and China as the most advanced nations in developing hydrogen economies within the G20, with the UK, EU, and Canada also making significant progress. The research examined key indicators such as hydrogen legislation, investment, and strategies to assess each country's advancement in establishing hydrogen fuel systems. Disparities were found in the development levels among G20 nations, with some countries like Mexico, Saudi Arabia, Indonesia, and Turkey lagging behind. The study also revealed variations in hydrogen standards and legislation across nations, with only a few countries having updated standards such as China, the US, and the UK. The Sheffield team calls for the G20 to introduce a globally recognised hydrogen standard to drive the development of low carbon hydrogen fuels. Professor Lenny Koh emphasized the importance of creating unified standards to accelerate the transition from fossil fuels and reduce carbon emissions. Dr. Moein Shamoushaki highlighted the significance of targeted investments based on the research findings to enhance legislation surrounding hydrogen. The study underscores the need for cohesive efforts among G20 nations to bridge gaps in hydrogen economies, ensuring a sustainable and effective transition to hydrogen fuel systems.