Revenue Models & Financing Mechanisms for Protecting and Restoring Coastal and Marine Ecosystems

The R4N Guidebook Series provides an in-depth analysis of models across the globe that unlock private sector capital into nature restoration or protection, including nature-based solutions (NbS). Each Guidebook offers detailed insights into the development of these models, the enabling conditions that allowed them to succeed, along with key lessons learned. The series examines the ecological, political, and socio-economic factors that support the replicability and scalability of these models in diverse regions, and explores how these models can generate revenue and improve biodiversity while leveraging private sector financing.

This guidebook explores how innovative revenue models and financing mechanisms can mobilise private capital to support the protection and restoration of coastal and marine ecosystems. Drawing on a series of real-world case studies from diverse geographies, it examines how different approaches—from user fees and payments for ecosystem services to blue bonds and debt-for-nature swaps—have been designed and implemented in practice. The guidebook highlights key lessons, challenges, and enabling conditions for scaling these models, with the aim of supporting policymakers, investors, and practitioners in developing investable, sustainable solutions for ocean conservation.