In an era defined by unprecedented environmental challenges and technological breakthroughs, Smart Technologies for a Sustainable Environment stands as a visionary compendium of cutting-edge research and transformative solutions. This curated collection of insights explores how groundbreaking advancements are reshaping the landscape of sustainability, from renewable energy and precision agriculture to healthcare and smart urban systems. The journey through these compelling chapters unveils the potential of alkaline electrolyzers in green hydrogen production, and how the deployment of Internet of Things (IoT)-enabled systems is revolutionizing agriculture environmental control. The book explores the digital transformation of healthcare through case studies from Morocco’s radiology departments, alongside pioneering models driven by deep learning, uncertainty quantification, and artificial intelligence (AI) to forecast solar energy, detect anomalies, and diagnose diseases with unprecedented accuracy. These innovations not only push technological boundaries, but also pave the way for a more resilient, eco-friendly future. This book also highlights the ingenuity behind water resource management, wastewater recycling, and sustainable smart supply chains—illustrating how integrated, intelligent solutions are vital for addressing complex ecological and industrial challenges. Whether you are a researcher seeking inspiration, a policymaker shaping sustainable initiatives, or an industry leader driving innovation, this book offers invaluable insights to propel your endeavors forward.