In a groundbreaking development, Australian researchers at the University of Adelaide have unveiled two novel systems for producing green hydrogen using urea derived from human urine and wastewater. These systems aim to revolutionize the energy sector by offering a more affordable and sustainable alternative to current methods of generating clean hydrogen. The conventional process of hydrogen production through electrolysis of water is not only expensive but also energy-intensive, while extracting hydrogen from fossil fuels results in high levels of carbon emissions. By contrast, the use of urea—especially from urine—significantly reduces electricity consumption by 20 to 27 percent and eliminates the environmental repercussions of traditional approaches. The first system pioneered by the researchers employs a unique copper-based catalyst in a membrane-free configuration to extract hydrogen from pure urea. The second system takes a step further by utilizing urine as an environmentally friendly alternative source, employing a chlorine-mediated oxidation mechanism with platinum-based catalysts to combat chloride ions that can damage the electrolysis system. Notably, both systems circumvent the production of toxic nitrates and nitrites, releasing harmless nitrogen gas instead. Led by experts from the University of Adelaide, the team plans to replace the expensive platinum catalysts with non-precious metal catalysts supported by carbon to further drive down costs and bolster sustainable hydrogen production. This cutting-edge research showcases a promising advancement in the realm of green energy and paves the way for a more eco-conscious future.