Researchers at the University of Adelaide have made significant strides in the field of hydrogen production by developing innovative systems that utilize urea from urine and wastewater to generate green hydrogen efficiently and cost-effectively. This breakthrough offers a promising pathway towards a sustainable and renewable energy source while also addressing the issue of nitrogenous waste in aquatic environments. The membrane-free electrolysis systems developed by the researchers overcome the limitations of existing urea-based systems by producing harmless nitrogen gas instead of toxic by-products and requiring less electricity than traditional water-splitting methods. By utilizing urine as a green source of urea, the systems represent a carbon-neutral approach to hydrogen production. The team's efforts to find a solution to the corrosion caused by chloride ions in urine led to the development of a novel chlorine-mediated oxidation mechanism, further enhancing the efficiency of hydrogen generation. Additionally, the researchers plan to continue their work by exploring the use of non-precious metal catalysts to create more affordable and sustainable systems for green hydrogen production from urine and wastewater. Overall, this research not only demonstrates a groundbreaking advancement in the field of energy production but also underscores the importance of developing environmentally friendly solutions for a carbon-neutral future.