The Week of the Environment in Berlin, organized by German President Frank-Walter Steinmeier and the German Federal Environment Foundation, is a significant event focusing on cutting-edge environmental projects. Approximately 190 exhibitors participate in this event held at Bellevue Palace in Berlin, showcasing innovative ideas for a sustainable future. RWTH stands out with three thematic exhibitions on recycling, hydrogen, and phosphates, highlighting their commitment to sustainability. The event emphasizes the importance of circular economy and sustainable practices, with a specific focus on transitioning to a sustainable hydrogen society. Researchers from RWTH present key aspects of hydrogen research, including market implementation, cost reduction, and safety protocols. Additionally, the event features a sustainable phosphate recycling method developed by RWTH, promoting a circular phosphorus economy for the food industry. This initiative underlines the importance of sustainable practices and innovative solutions in addressing environmental challenges. The Week of the Environment provides a platform for experts to discuss and collaborate on crucial environmental issues, aiming to drive positive change towards a more sustainable society.