A recent study from the University of Sheffield sheds light on the efforts of the United States and China in spearheading hydrogen development within the G20. The research, published in Renewable and Sustainable Energy Reviews, assessed various indicators of hydrogen progress among G20 countries. The findings indicate that the US and China are the frontrunners in advanced hydrogen economies, with the UK, the EU, and Canada following closely behind. On the other end of the spectrum, nations like Mexico, Saudi Arabia, Indonesia, and Turkey were identified as having less mature hydrogen economies. The study also uncovered disparities in hydrogen standards and legislation across nations, with only a few countries having published updated standards. The research team advocates for the implementation of internationally recognised standards within the G20 to drive the development of low carbon hydrogen fuels. Professor Lenny Koh and Dr Moein Shamoushaki from the University of Sheffield emphasize the importance of targeted investments and the establishment of unified market standards to accelerate progress in hydrogen development. By identifying gaps in current hydrogen economies, the study aims to guide policymakers and stakeholders towards more effective legislation and investment strategies.