This book presents new research on innovative financial instruments and approaches available to implement nature-based solutions (NBS) at various scales and in different contexts. Despite knowledge of the multiple benefits NBS provide, a key barrier to their wide-spread adoption is a lack of knowledge over their financing, in particular, who should pay for an NBS and how it can be financed. The book explores a variety of public, private, and blended finance models and their applicability in developing NBS across terrestrial and marine ecosystems, involving multiple stakeholders, and in jurisdictions of varying climates and income levels. Furthermore, the book provides case studies of the innovative financing of NBS with best practices identified. This book is of interest to environmental planners, resource conservation managers, policymakers, international companies and organizations, environmental NGOs, researchers, and graduate and undergraduate students interested in NBS. Robert C. Brears is an international sectoral expert (water) consultant with the Green Climate Fund. He is Editor-in-Chief of the Palgrave Handbook of Climate Resilient Societies and the Palgrave Encyclopedia of Urban and Regional Futures. Robert is an author of several Springer Nature titles, including The Green Economy and the Water-Energy-Food Nexus, Blue and Green Cities: The Role of Blue-Green Infrastructure in Managing Urban Water Resources, and Developing the Circular Water Economy. He is the Founder of Our Future Water.