University of Sydney researchers have made a breakthrough in ammonia production by developing a more efficient method using plasma and a membrane-based electrolyser. The current dominant method, the Haber-Bosch process, is known for its high carbon footprint and energy-demanding nature. By harnessing the power of plasma to excite air molecules and converting them into gaseous ammonia, the team aims to create a more sustainable and cost-effective way of producing ammonia. This new approach not only streamlines the production process but also has implications for hydrogen usage, as ammonia can be a source and carrier of hydrogen for energy purposes. The potential of ammonia as a carbon-free fuel has attracted attention from industries like shipping, looking to reduce their greenhouse gas emissions. The research team, led by Professor PJ Cullen, is working towards further enhancing the energy efficiency of their method to make 'green ammonia' a viable alternative to the current production practices. The study, published in AngewandteChemie International edition, marks a significant step towards a more sustainable future for ammonia production, with implications for both agriculture and industry.