Book Title: Enhancing Water Resource Management in Arid Regions: Innovative Techniques from an Environmental Engineering Perspective By: Gamal E.O. Elhag-Idris When a drop of water becomes more valuable than gold… the real challenge begins. In a world facing climate change, increasing drought, and growing water scarcity, this book offers a clear and practical guide to solving water problems in dry regions. It brings a fresh engineering and environmental approach, combining scientific knowledge with real-world solutions.