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This report evaluates the economic and environmental benefits of using nature-based infrastructure (NBI) for progressive mine closure in Marmato, Colombia. It finds that progressive closure provides a return of USD 1.44 for every USD 1 invested, primarily by reducing mortality risks from landslides and tunnel collapses. NBI interventions like reforestation and slope stabilization are highlighted as critical for restoring ecosystems and reducing long-term environmental liabilities in a region where regulatory frameworks for artisanal mining closure are still emerging.

This report analyzes the subnational policy landscape for electric vehicle (EV) and battery manufacturing across 14 major automotive states in India, emphasizing the role of state governments in deepening localization through the control of land, power, and infrastructure.

The report recommends that Zambia diversify its economy by expanding copper smelting and refining, prioritizing affordable electricity, and improving trade corridors to capture more value from the global copper supply chain.

This policy brief by the International Institute for Sustainable Development outlines social and environmental safeguards for mangrove restoration to prevent ecological disruption and social harm, emphasizing that effective restoration requires scientific planning, inclusive engagement, and strong governance.

This guide from the International Institute for Sustainable Development explains the role and trends of international public finance in the energy sector, specifically focusing on the activities of G20 governments and multilateral development banks (MDBs).

This guide from the International Institute for Sustainable Development explains the nature, impacts, and trends of fossil fuel subsidies, highlighting that public financial support for fossil fuels significantly outweighs that for clean energy.

This report by the International Institute for Sustainable Development provides a policy toolkit for subnational states and regions to manage the transition away from fossil fuel production, emphasizing economic diversification and the protection of regional workers and communities.

This case study describes the establishment of an Independent Fiscal Council in Ghana in early 2026, designed to strengthen fiscal transparency and long-term debt sustainability following the country's 2022 debt crisis. The initiative was supported by the International Institute for Sustainable Development (IISD) and the Ghanaian think tank IMANI Africa, providing analytical and design support to the Ghanaian government.

The International Institute for Sustainable Development (IISD) submitted recommendations to Australia's Department of Foreign Affairs and Trade regarding the renegotiation of older-generation bilateral investment treaties (BITs). The IISD advocates for terminating outdated treaties and replacing them with a new generation of frameworks that prioritize sustainable development, climate action, and national regulatory autonomy over blanket investor protections.

This report evaluates the Pradhan Mantri Kisan Urja Suraksha evam Utthaan Mahabhiyan (PM-KUSUM) scheme, specifically Components A and C-FLS, which promote decentralized solar power plants (1–10 MW) on farmers' land to improve irrigation and reduce state power subsidies. While the economic case is strong, the report identifies governance, market, and structural barriers that have led to gradual progress, and provides recommendations for a post-2026 scheme architecture.

An open letter from the Canadian Coalition on Climate Change and Development (C4D) to the Prime Minister of Canada urging the government to establish a new international climate finance commitment following the expiration of a $5.3 billion envelope on March 31, 2026.

This research paper by the International Institute for Sustainable Development analyzes a global database of fossil fuel production restrictions, identifying 58 active measures across 25 countries and 27 subnational jurisdictions. It examines the trajectories of these policies, noting that while restrictions have grown exponentially over the last decade, they remain politically fragile and susceptible to rollbacks during periods of high energy prices or government changes.

This report by the International Institute for Sustainable Development (IISD) analyzes the dispute settlement function within national investment laws, based on a review of 167 laws. It examines the prevalence of adjudicative mechanisms like national courts and arbitration, as well as non-adjudicative options such as administrative review and amicable settlement. The report warns against the risks of 'advance consent' to international arbitration and provides a framework for policy-makers to assess and reform their national investment laws to minimize legal and financial risks.

This executive summary, published by the International Institute for Sustainable Development (IISD) in April 2026, analyzes the dispute settlement functions within national investment laws. Based on a study of 167 laws, it examines the prevalence of dispute prevention, management, and settlement (DPMS) provisions, the role of national courts versus arbitration, and the risks associated with providing prior consent to arbitration. The document provides a framework for policymakers to reform investment legislation to minimize financial and regulatory risks.

This executive summary, published by the International Institute for Sustainable Development (IISD) in April 2026, analyzes the dispute settlement functions within 167 national investment laws. It examines the prevalence of dispute prevention, management, and settlement (PGRD) provisions, highlighting the risks associated with 'prior consent' to arbitration and providing a framework for policymakers to reform national investment laws to minimize legal and financial risks.

This briefing note details the first phase of a project to reduce single-use foodware in Winnipeg, Manitoba. Based on surveys of 26 food-service businesses and 50 customers conducted in the summer of 2025, the report identifies a high willingness among both groups to transition to reusables, despite barriers such as cost, convenience, and a lack of city-wide infrastructure.

This report evaluates the implementation of the Pradhan Mantri Kisan Urja Suraksha evam Utthaan Mahabhiyan (PM-KUSUM) scheme in India, specifically focusing on Component A (decentralized solar plants) and Component C-FLS (feeder-level solarization). While the scheme aims to add 35 GW of solar capacity by March 2026 to improve irrigation and farmer income, it has faced low uptake, achieving only 7% of targets for Component A and 34% for Component C-FLS as of December 31, 2025. The report identifies critical barriers including poor institutional coordination, grid instability, land acquisition challenges, and tariff mismatches, while providing actionable recommendations for the design of future solar irrigation programs.

The International Institute for Sustainable Development (IISD) submitted recommendations to the Australian government regarding the renegotiation of older-generation bilateral investment treaties (BITs). The IISD argues that these treaties prioritize investor protection and investor-state dispute settlement (ISDS) over public policy and urges a shift toward treaties that facilitate sustainable investment and climate action.

This report by the International Institute for Sustainable Development (IISD) analyzes the dispute settlement functions within 167 national investment laws. It examines the prevalence of various mechanisms—including national courts, arbitration, administrative review, and amicable settlements—and provides a framework for policymakers to design or reform these laws to minimize legal and financial risks, specifically warning against the inclusion of prior consent to international arbitration.

The 'Guide for Small-Scale Producer Engagement', co-developed by the International Institute for Sustainable Development and ISEAL Alliance, provides a framework for organizations to improve their collaboration with small-scale producers within sustainable market-based initiatives.