This book offers a comprehensive guide to the transformative power of green finance, circular economy principles, and digital technologies in driving sustainable urban development. Through global case studies and expert analysis, it explores how municipalities can leverage green bonds, how circular economy policies can be scaled, and how digital platforms—from AI to blockchain—can accelerate the shift to a greener, more resilient economy. Designed for policymakers, urban planners, investors, and sustainability professionals, the book offers actionable strategies and forward-looking roadmaps at the intersection of finance, technology, and environmental stewardship. Featuring a global cast of contributors from both academia and practice, it will be of particular interest to academics, investors, and policymakers engaged in green finance, sustainable development, and alternative financing.