This book comprises the peer-reviewed proceedings of the 5th scientific conference on Geosciences and Environmental Management (GeoME’5), held in Salé, Morocco, on June 19–21, 2025. The book is of interest to researchers and practitioners in geosciences, environmental engineering, and water management. It delivers a comprehensive overview of the latest research covering the following aspects of green technologies for sustainable water and wastewater management: nature-based solutions in the water cycle and advanced technologies in geosciences, geotechnics, and the environment. Additionally, it features keynote speakers by international experts, providing valuable insights and further enhancing its value as a comprehensive resource on the following topics: water management, environmental engineering, geosciences, and geotechnical engineering.