In today's fast-evolving digital landscape, sustainability is no longer optional—it is an imperative. This groundbreaking volume brings together a powerful collection of pioneering research and innovative solutions at the intersection of technology and sustainability. It showcases how cutting-edge technologies such as Artificial Intelligence (AI), the Internet of Things (IoT), Blockchain, and Green Cloud Computing are transforming industries, empowering smarter decision-making, and driving sustainable development across agriculture, urban planning, energy systems, and more.Featuring 17 thought-provoking chapters contributed by renowned experts and industry leaders, this book offers a rich blend of theoretical insights, real-world applications, and future-oriented strategies. From securing digital ecosystems with blockchain to optimizing energy in electric vehicles, and from AI-driven crop recommendations to ethical considerations in IoT design, the chapters highlight actionable solutions that address today's most pressing environmental and technological challenges. Essential for researchers, industry professionals, policymakers, and students, this volume serves as a must-read guide for anyone committed to creating a greener, smarter, and more sustainable digital future.