A team of international scientists, led by researchers from Cardiff University and Peking University, has introduced a novel approach to producing hydrogen that eliminates direct CO₂ emissions. This new method involves reacting hydrogen-rich bioethanol sourced from agricultural waste with water at a significantly lower temperature of 270°C, made possible by a new bimetallic catalyst. Unlike conventional processes that operate at higher temperatures, resulting in significant CO₂ emissions, this innovative catalyst facilitates hydrogen production without releasing carbon dioxide, while also co-producing valuable acetic acid. The study, published in Science, indicates a major breakthrough in de-fossilizing the chemical industry and establishing a circular economy model for producing hydrogen and high-value chemicals from biomass. The traditional production of hydrogen, primarily derived from fossil fuels, contributes to substantial CO₂ emissions globally. By contrast, this new catalytic technology offers a sustainable and energy-efficient solution for producing hydrogen with no CO₂ emissions, aligning with the goals of achieving a carbon-neutral hydrogen economy. The co-generation of acetic acid further enhances the economic viability and sustainability of this technology, making it a promising alternative for various industries. The researchers emphasize the potential of this innovation to drive the transition towards a greener economy and support global efforts to combat climate change and achieve carbon neutrality. With its focus on reducing environmental impact and promoting sustainable practices, this study represents a significant advancement in the field of hydrogen production and sets a foundation for more environmentally friendly chemical manufacturing processes in the future.