This book offers a solutions-driven exploration of how blockchain can practically advance global sustainability and circular economy goals. It uniquely integrates technological, ethical, and environmental dimensions, making blockchain innovations accessible beyond finance. Covering fundamentals, real-world applications in waste management, and global adoption trends, the book bridges the gap between theory and sustainable practice. Designed for researchers, industry professionals, policymakers, and sustainability advocates, it provides actionable insights and frameworks. Key uses include designing blockchain-enabled recycling systems, developing ethical guidelines, and fostering global collaboration on resource management.