Loading...

Evaluating Impacts of Debt-for-Nature Swaps on Debt, Climate and Biodiversity (2025-2026)

Debt-for-nature swaps (DfNS) are financial arrangements in which a portion of a country’s sovereign debt is refinanced or reduced in exchange for commitments to invest in conservation and environmental management. A new generation of these swaps — such as those implemented in Belize (2021) and Ecuador’s Galápagos Islands (2023) — has grown substantially in size and complexity, incorporating private capital, credit enhancements and structured conservation financing. These developments raise important questions about whether modern swaps deliver meaningful financial relief, conservation outcomes and equitable benefits.

This project team evaluated the performance and design of recent debt-for-nature swaps, focusing on their financial impact, conservation implementation, governance structures and equity implications. Team members conducted integrated analyses combining financial modeling, conservation policy evaluation, remote sensing data analysis and stakeholder-focused equity frameworks.

Team members developed a framework to evaluate the financial benefits of swaps by comparing nominal savings, net present value savings and counterfactual borrowing scenarios. Applying this framework to recent swaps demonstrated that reported financial “savings” vary substantially depending on assumptions such as discount rates, highlighting the need for standardized evaluation methods. Additional work examined how conservation commitments are implemented through Conservation Trust Funds in Belize and the Galápagos, assessing whether funding allocations align with stated conservation objectives and evaluating governance structures that influence oversight and accountability.

The team also examined environmental outcomes using satellite-derived data to analyze industrial fishing activity around the Galápagos and explored indirect economic impacts such as tourism recovery following Belize’s swap. Equity analysis used the Ocean Equity Index to assess how stakeholders (e.g., fishers, community groups, implementing organizations) perceive fairness in decision-making and benefit distribution. Together, these efforts provide an interdisciplinary assessment of whether new debt-for-nature swaps represent meaningful progress while identifying opportunities to strengthen financial transparency, conservation monitoring, governance accountability and equitable implementation.

Timing

Fall 2025 – Spring 2026

Team Outputs

Evaluating Debt-for-Nature Swaps (Team profile)

Financial evaluation framework for debt-for-nature swap savings 

Analysis of Conservation Trust Fund governance and funding allocations in Belize and the Galápagos

Satellite-based analysis of industrial fishing activity around the Hermandad Marine Reserve

Equity assessment of stakeholder perceptions using the Ocean Equity Index

Integrated dataset and analytical framework on recent debt-for-nature swaps

Manuscript in progress

This Team in the News

MEM Students Evaluate Impacts of Debt-for-Nature Swaps

See related team, Evaluating Debt-for-Nature Swaps (2026-2027)

Team Leaders

  • Elizabeth Losos, Nicholas School of the Environment: Environmental Sciences and Policy
  • Alex Pfaff, Sanford School of Public Policy
  • Stuart Pimm, Nicholas School of the Environment, Nicholas School of the Environment: Environmental Sciences and Policy

Graduate Team Members

  • Nicolas Davalos
  • Megan Dear, Coastal & Marine Systems (Env); Comm Engage & Envrn Jus (Mgmt)
  • Sujay Dhanagare, Terrestrial & Freshwater (Env); Envrn Analytics & Mdlng (Mgmt)
  • Kelly Gallagher, Coastal & Marine Systems (Env); Envrn Economics & Policy (Mgmt)
  • Elizabeth Kroger, Coastal & Marine Systems (Env); Comm Engage & Envrn Jus (Mgmt)
  • Meredith Langmuir, Coastal & Marine Systems (Env); Business & Environment (Mgmt)
  • Chrissie Pantoja Vallejos, Environmental Economics/Policy; Environmental Policy-PHD
  • Camber Vincent, Coastal & Marine Systems (Env); Envrn Analytics & Mdlng (Mgmt)
  • Lucas Zhou, Energy and Environment (Env); Business & Environment (Mgmt)

Undergraduate Team Members

  • Erin Kim, Public Policy (AB); Economics (AB2)
  • Jack Lyons, Mathematics (BS); Economics (BS2)
  • Griffin Storm
  • Daniel Wang, Economics (BS)

Team Contributors

  • Lisa Campbell, Nicholas School of the Environment: Marine Science and Conservation
  • Mercy Demenno, Pratt School of Engineering: Civil & Environmental Engineering
  • David Gill, Nicholas Institute for Environmental Policy Solutions, Nicholas School of the Environment: Marine Science and Conservation
  • Richard Mei, Nicholas School of the Environment
  • Stephanie Rousso, Nicholas Institute for Energy, Environment & Sustainability
  • Tibor Vegh, Nicholas Institute for Energy, Environment & Sustainability
  • John Virdin, Nicholas Institute for Environmental Policy Solutions, Nicholas School of the Environment: Marine Science and Conservation
  • David Ye, Arts & Sciences: Mathematics