Report

Sustainable Asset Valuation of Mining Closures in Artisanal and Small-Scale Gold Mines in Marmato, Colombia

Nature-based infrastructure’s role in mining closure plans

This Sustainable Asset Valuation (SAVi) examines how nature-based infrastructure (NBI) interventions like reforestation, slope stabilization, and hydrological restoration can strengthen mine closure plans in Marmato, Colombia. For every USD 1 invested in progressive closure with NBI, the region gains USD 1.44 in return while also reducing exposure to landslide risk, water contamination, and ecosystem degradation.

April 24, 2026

Key Findings

  • Starting mine closure early delivers stronger results at lower cost. For every USD 1 invested in progressive closure, the region gains USD 1.44 in return, a conservative estimate, as several social and health benefits could not be monetized.

  • The most significant benefit of closing a mine properly is protecting human life. Reducing exposure to landslides, rockfalls, and tunnel collapse is where the economic case for structured closure is strongest.

  • When mines close without structured rehabilitation, contaminated land, unstable slopes, and degraded ecosystems remain. NBI interventions such as reforestation, slope stabilization, and hydrological restoration reduce risks, restore land, and benefit surrounding communities.

Marmato, in the department of Caldas, is one of Colombia's most historically significant gold-mining territories, where artisanal and small-scale gold mining has shaped local livelihoods and cultural identity for centuries. But mining in Marmato also carries serious risks. Steep hillsides, unmanaged waste, water contamination, and the near-absence of structured closure planning have left the territory exposed to landslides, ecosystem degradation, and long-term environmental liabilities. 

Colombia's regulatory framework for artisanal and small-scale mine closure is still emerging. Most mining areas in Marmato currently lack approved closure plans, meaning environmental risks accumulate without a clear pathway for remediation. The NBI Global Resource Centre applied the SAVi methodology to evaluate three closure pathways: a baseline scenario in which mines are abandoned without intervention; a comprehensive closure plan implemented at the end of mine life; and a progressive closure plan in which stabilization, rehabilitation, and NBI measures are implemented gradually during operations. The quantitative analysis is based on a pilot assessment of a representative artisanal mine, with results intended as indicative rather than definitive. 

The results show that mine closure in Marmato is fundamentally a risk-reduction investment. Avoided mortality risk—linked to reduced exposure to landslides, rockfalls, and tunnel collapse—represents the largest share of monetized benefits. The progressive closure plan outperforms end-of-life closure: for every USD 1 invested, the region gains USD 1.44 in return—a conservative estimate, as several social and health benefits could not be monetized due to data limitations. Earlier implementation reduces costs by making use of materials generated during operations rather than purchasing external inputs at the end of mine life, and allows risk reduction and ecosystem service benefits to accrue sooner. 

NBI plays a central role in this performance. Reforestation, slope stabilization, soil remediation, and hydrological restoration contribute ecosystem services, including erosion control, carbon sequestration, and biodiversity recovery, and reinforce the long-term effectiveness of closure outcomes.

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States in the Driver’s Seat

Policies localizing electric vehicle and battery manufacturing in India

As the world’s fourth-largest automotive base, India holds the potential to create local manufacturing opportunities through the electric vehicle (EV) transition. State governments are at the forefront, controlling critical policy levers for deepening localization. This study examines the subnational policy landscape for EV and battery manufacturing across 14 major automotive states in India.

April 22, 2026

Key Findings

  • Supply-side EV and battery policies are beginning to translate into investments spanning across the EV value chain. These investments reflect early but tangible progress on localization across the value chain but are leading to geographically dispersed manufacturing outcomes.

  • Localization cannot be achieved through central policies alone. States control critical levers—land acquisition, power tariffs, logistics infrastructure, and regulatory clearances—that determine EV and battery manufacturing competitiveness and investment decisions.

  • Alignment between centre and state policies strengthens the overall incentive stack. State incentives can reduce location-specific costs, while central government incentivizes reward production and value addition.

  • Targeted policy instruments that address specific cost barriers, especially for midstream (such as production of cathode active materials, precursor materials) and upstream (critical minerals mining or sourcing) segments of the value chain, are needed at the state level for deepening localization.

The global automotive industry is undergoing a structural shift driven by transport electrification and increasing EV adoption. Valued at nearly USD 240 billion, contributing about 7.1% of GDP and supporting over 30 million direct and indirect jobs, India's automotive sector holds the potential to create local manufacturing opportunities through the EV transition. 

EV manufacturing requires an industrial configuration that is capital-intensive, electronics- and battery chemistry-driven, and significantly more exposed to global supply chains than conventional automotive manufacturing. Net localization for several high-cost EV components─such as batteries, motors, DC-DC convertors, and on-board chargers─is increasing but remains low in India despite several central government and state government policies. 

This report examines the subnational policy landscape for EV and battery manufacturing across leading automotive states in India. It finds that at least 14 state governments provide financial support through capital expenditure- or operating expenditure-reducing measures for localizing EV and battery manufacturing, indicating a growing ambition among Indian states to attract investments in the sector. However, targeted policy instruments that address specific cost barriers shall be needed for deepening localization. State policies remain less differentiated for midstream (such as production of cathode active materials, precursor materials) and upstream (critical minerals mining or sourcing) segments of the value chain, demonstrating growing policy maturity for downstream segments such as vehicle/battery assembly but nascency in terms of an emerging integrated value chain strategy. 

The study suggests six actions for central and state governments: 

  • design subnational support measures that de-risk midstream and upstream battery investments,
  • provide dedicated policy support for research and development investments, patent filing, and strategic intellectual property creation in the battery value chain,
  • conduct fresh rounds for Production Linked Incentive Auto to increase industry participation as downstream manufacturing for EV original equipment manufacturers and component suppliers matures,
  • develop project preparation facilities and plug-and-play industrial land infrastructure at the state level to further accelerate cell and battery manufacturing,
  • bridge the skill gap by establishing a dedicated skilled workforce development program for EV and battery manufacturing, and
  • introduce clear public procurement and phased zero-emission vehicle mandates to boost demand and reduce market risk for domestic manufacturers.

Report details

Topic
Climate Change Mitigation
Energy
Subsidies
Region
India
Impact area
Climate
Publisher
IISD
Copyright
IISD, 2026
Report

Leveraging Copper for Economic Transformation

Policy choices for value addition in Zambia

The report highlights key opportunities for Zambia to grow its copper processing and manufacturing industries. It analyzes challenges facing the country's copper-based industries and assesses how the country's policies respond to these. Finally, it provides recommendations on how to harness copper processing and manufacturing for sustainable development.

April 22, 2026

Recommendations

  • Government should focus industrial development efforts on the copper value chain by expanding smelting and refining, aligned with the planned increase in mine output under the 3MT strategy.

  • Access to reliable and affordable electricity should be the most urgent priority for copper value addition. Accelerating investment in generation capacity is essential, including by implementing efforts to get to cost-reflective tariffs combined with targeted protection for vulnerable households.

  • To foster competitiveness in its value chains, Zambian authorities can consider strengthening the development of special economic zones/industrial parks and infrastructures close to copper mines.

  • Corridor strategies and trade facilitation are core tools to boost copper exports to meet rising demand in Africa. Investment in transport and energy corridors, alongside reforms to customs, digital trade systems, and border posts, are key to cutting costs and improving competitiveness.

Copper is central to Zambia’s economy. The country is the world’s 10th-largest copper producer, and copper accounted for around 60% of export revenues in 2023. Yet, the country’s heavy reliance on mining exposes it to risks, including slower growth, limited diversification, weak job creation, and heightened vulnerability to external shocks. 

Against this backdrop, deeper participation in the copper value chain—through processing and manufacturing—offers a potential pathway to strengthen resilience and domestic linkages. Still, value addition is not automatic. Its benefits depend on careful sequencing, competitiveness, and the ability to address binding constraints while proactively managing social and environmental costs. 

With global demand for copper expected to remain strong, and projections pointing to persistent supply shortfalls into the mid-2030s, Zambia is therefore well placed to expand its role in copper value chains.

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Unpacking National Investment Laws

Dispute settlement function

This report analyzes the dispute settlement functions of national investment laws as part of IISD’s Rethinking International Investment Governance project. Building on the 2023 foundational study, this deep dive explores how national investment laws regulate dispute settlement function and provides the comparative knowledge needed to design dispute settlement mechanisms fit for the 21st century.

April 16, 2026

Key Findings

  • National investment law is not always the best tool to address policy problems of dispute settlement.

  • Creating new dispute settlement mechanisms always diverts resources from the general justice system.

  • Laws may recognize arbitration as an available option subject to specific, case-by-case agreement. Laws should not provide unilateral, open-ended advance consent to an undefined class of investors—the practice exposes states to significant and largely uncontrollable legal and financial risks.

National investment laws are increasingly replacing international treaties as the primary tool for shaping sustainable development. However, many of these domestic frameworks inadvertently replicate the high financial and legal risks of international arbitration through provisions that give "advance consent" to investor–state dispute settlement. 

This report provides a framework for policy-makers to move beyond these risks. It offers a data-driven guide to strengthening domestic judiciaries and designing dispute mechanisms that protect national interests while maintaining investor confidence in the 21st century.

Report

Nickel Mining in Ontario, Canada

An overview of socioenvironmental governance in the sector

This case study is part of a broader project focused on strengthening supply chain resilience through analysis of the environmental and associated social impacts of critical minerals using case studies of nickel, lithium, and copper. It describes environmental and associated social issues from nickel mining and processing in Ontario, Canada, and examines policy measures for managing them.

April 15, 2026

Key Findings

  • Ontario has a comprehensive regulatory framework and benefits from a history of collaborative restoration programs to address the environmental and social impacts of nickel sulfide mining.

  • While nickel sulfide mining typically has a smaller environmental footprint than nickel laterite mining, key issues can pose a risk to downstream waterbodies, aquatic ecosystems, and culturally important harvesting areas, resulting in the need for careful management and long-term monitoring.

  • Given the heightened importance of critical minerals, including nickel, good practices such as the use of regional assessments can help identify potential cumulative effects in a given region where such major projects are likely to be developed.

Canada holds the world’s eighth-largest nickel reserves, estimated to be 2.2 million tonnes, or approximately 2% of global reserves. In 2024, Canada produced 125,364 tonnes of nickel, making it the fourth-largest global producer. 

In Canada, mining legislation is primarily developed and administered at the provincial level, resulting in variation across provinces. This case study focuses on Ontario because it is Canada’s largest provincial nickel producer, accounting for almost 40% of national nickel production.

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Data and Digital Trade Law

Balancing rules, policy space, and development

As data becomes central to digital trade and economic growth, governments are increasingly challenged to balance the benefits of openness with the need for regulatory oversight. This paper examines emerging trade rules on cross-border data flows, their implications for development and economic opportunities, and the specific challenges faced by developing countries.

April 10, 2026

Key Messages

  • Governments regulate data to pursue a range of policy objectives (e.g., privacy, social cohesion, national security). To achieve these, they may adopt measures such as limits on data transfers or conditions on where data is processed, which can have important implications for cross-border trade.

  • The diversity of policy objectives contributes to regulatory heterogeneity across jurisdictions. This can lead to digital market fragmentation, affecting firms’ ability to access cross-border markets and increasing compliance costs.

  • Many governments are at a critical stage in defining their data governance approaches, seeking to balance the benefits of open data flows with the regulatory space needed to pursue national preferences and domestic policy objectives. Trade agreements are increasingly shaping these choices.

  • Developing countries face additional challenges, as access to data and its benefits remains unequal and increasingly concentrated. They must navigate geopolitical pressures and the risk of digital interdependence being weaponized, while addressing the data divide and seeking to secure greater value.

This report explores how governments regulate data—including rules on cross-border data flows and data localization—while examining the role trade agreements play in shaping these frameworks. The primer also highlights the challenges developing countries face as they seek to balance the benefits of open data flows with the policy space needed to pursue development, security, and regulatory objectives, and offers practical insights for policy-makers and trade officials. 

The report is part of a policy primer series, funded by the Swedish International Development Cooperation Agency (Sida), aimed at deepening understanding of the key policy and regulatory foundations that shape today’s digital economy. 

This is the fourth report of the Building Blocks of Digital Trade Regulation series. You can continue exploring the series here:

Report details

Topic
Trade
Impact area
Sustainable Economies
International Governance
Publisher
IISD
Copyright
IISD, 2026
Report

Leading the Transition Locally

A policy toolkit to address fossil fuel production for subnational states and regions

Subnational states and regions are powerful drivers of both implementation and ambition in achieving the goals of the Paris Agreement. They are critical to achieving the transition away from fossil fuels. This report aims to explore and document the role of subnational governments in advancing a just, orderly, and equitable transition away from fossil fuel production as a critical element of the overall transition away from fossil fuels.

April 10, 2026

Policy Recommendations

  • Subnational states and regions should diversify the local economy while pursuing a just, orderly, and equitable transition away from fossil fuel production. They should also develop roadmaps to transition away from fossil fuel production, which are time-bound, sequenced, and financed.

  • Subnational states and regions should reduce greenhouse gas emissions from existing fossil fuel production operations, particularly Scope 1 and 2 emissions. Emissions-reduction measures should complement, not substitute for, a transition away from production.

  • Subnational states and regions should strengthen multilevel engagement and policy alignment, engaging closely with cities, municipalities, and local communities on the energy transition.

  • Subnational states and regions should engage in international cooperation and peer learning, including participating in initiatives such as the Beyond Oil and Gas Alliance, the Powering Past Coal Alliance, the Fossil Fuel Treaty, and COFFIS.

At the 28th United Nations Climate Change Conference, the historic UAE Consensus called upon all parties to the Paris Agreement to contribute to transitioning away from fossil fuels in a just, orderly, and equitable manner, accelerating action in this critical decade so as to achieve net-zero by 2050 in keeping with the science. This transition must include both consumption and production of fossil fuels. In this publication, we focus on the production of fossil fuels, since it is an area that is under-researched and under-equipped, but increasingly prominent in policy and academic debates on transitioning away from fossil fuels. 

The subnational state and region level is critical to achieving this transition. While the vast majority of global fossil fuel production is managed by national governments and/or the private sector, their extraction facilities, workforces, and communities exist within states and regions. 

Given the high economic and political dependence of certain states and regions on fossil fuel extraction, they will be critical movers in the transition. In addition, as the global energy transition unfolds, global demand for fossil fuels will decline, leading to lower revenues for subnational governments, and specific policies will be needed to actively diversify the economy and government revenue streams away from fossil fuels, alongside protecting regional workers and communities. 

This report aims to explore and document the role of subnational governments in advancing a just, orderly, and equitable transition away from fossil fuel production as a critical element of the overall transition away from fossil fuels. Drawing on desk research and interviews with subnational governments, it presents a policy toolkit with practical guidelines and actionable insights for these governments.

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Topic
Climate Change Mitigation
Energy
Just Transition
Impact area
Climate
Publisher
IISD
Copyright
IISD, 2026
Report

Scaling Solar Power for Irrigation in India

Lessons from PM-KUSUM Components A and C-FLS

Launched in 2019, the Pradhan Mantri Kisan Urja Suraksha evam Utthaan Mahabhiyan (PM KUSUM) scheme aims to expand solar-powered irrigation, boost farmer incomes through energy generation, and reduce agricultural power subsidies. This report assesses the scheme’s two components, A and C-FLS, drawing on extensive fieldwork, research, and stakeholder consultations. It distills key implementation learnings and offers actionable recommendations to strengthen governance, financing, and execution for a scalable post-2026 scheme.

April 7, 2026

Policy Recommendations

  • The economic case of agricultural solarization is strong. Farmers who lease land earn an average of INR 30,000/acre annually, while those who invest earn 11%–16% returns.

  • The next phase of PM-KUSUM should be designed in the spirit of cooperative federalism between the Union and states. The scheme should be flexible, enabling states to adapt and innovate deployment models to their context, and should enable innovations to disperse across state through cross-learning.

  • States should design an “incentive stack” on top of the Union Government incentives: The state governments should complement the financial incentives with their own initiatives to speed up land identification and ready the grids.

  • Adopt competitive bidding-based tariff discovery for agricultural solarization to better reflect market conditions and ensure cost-effective procurement.

The Government of India introduced the PM-KUSUM scheme in 2019 with a total outlay of INR 34,422 crores to add ~34,800 MW of solar power in the agriculture sector by March 2026. The scheme has three broad objectives: improving irrigation access through solar-powered irrigation, increasing farmers’ income by enabling them to become energy producers, and reducing the agricultural power subsidy burden on states. 

This report provides a comprehensive assessment of the performance and outcomes of PM-KUSUM’s two grid-connected components: Component A and Component C-FLS. These two components promote medium-scale (typically 1–10 MW) decentralized solar power plants, connected to rural distribution substations and deployed on farmers’ land to support irrigation. While they have generated strong interest among states due to their potential to lower subsidy burdens and enable reliable daytime power for agriculture, progress has remained gradual, underscoring the need for targeted measures to enable scale-up. 

Drawing on extensive research, fieldwork, and stakeholder consultations across Madhya Pradesh, Rajasthan, Tamil Nadu, and Karnataka, the report seeks to 

  • examine the progress and limitations in implementing PM-KUSUM Components A and C-FLS;
  • highlight challenges faced by state agencies, developers, and farmers, drawing from evidence from field insights;
  • provide actionable recommendations to strengthen governance, operational efficiency, and financing, as well as improve infrastructure, awareness, and implementation; and
  • inform the design of a post-2026 scheme architecture that is investment-ready and enables state-specific innovations, fostering a long-term, scalable impact. 

The report finds that barriers to scale fall into three interconnected categories: (a) governance challenges that limit state ownership and implementation capacity, (b) market barriers that deter potential small developers and new entrants from participating, through misaligned tariffs, thin financing, and fragmented approvals, and (c) structural constraints around land access and grid readiness that will only intensify as the scheme scales. For each barrier, the report documents what progressive states have already done and translates these lessons into actionable recommendations for the design of PM-KUSUM's next phase.

Report details

Topic
Energy
Subsidies
Region
India
Project
Solarizing Irrigation in India
Impact area
Climate
Sustainable Economies
Publisher
IISD
Copyright
IISD, 2026
Report

Carbon Market Insights: Volume 1, Issue 1

Tracking policy and market progress on carbon pricing in Southeast Asia

This issue reviews key international and regional developments in carbon pricing and analyzes how the European Union's Carbon Border Adjustment Mechanism (CBAM) could affect Southeast Asian exports. It also tracks emerging trends in the use of Paris Agreement Article 6 for international carbon trading and features country update briefs on carbon pricing developments in Indonesia, the Philippines, and Viet Nam.

March 25, 2026

Key Messages

  • Carbon pricing is expanding globally with 43 carbon taxes and 38 emissions trading systems (ETSs) covering more than 23% of global greenhouse gas emissions.

  • Specific industrial sectors face disproportionate risks from the EU CBAM despite low economy-wide exposure. Over 20% of Viet Nam’s iron and steel exports and nearly 20% of Indonesia’s aluminum exports are destined for the European Union, making these industries highly vulnerable to new carbon costs.

  • Indonesia has established itself as a regional leader by becoming the first Southeast Asian nation with an operational ETS. The recent Regulation 110/2025 formally aligns the national framework with Article 6 of the Paris Agreement and introduces a carbon unit registry to improve transparency.

  • Global implementation of Article 6.2 is advancing rapidly with over 100 bilateral agreements now announced or formalized. Active purchasing countries like Japan and Singapore are leading this trend by expanding cross-border carbon transactions primarily with Asian partners.

The inaugural issue of Carbon Market Insights explores the continued mainstreaming of carbon pricing worldwide, now covering over 23% of global greenhouse gas emissions through 43 carbon taxes and 38 emissions trading systems (ETSs) in force. While established markets like the European Union and the United Kingdom saw significant price momentum in late 2025, Asian markets in China and South Korea continue to navigate challenges related to allowance oversupply and low price signals. The issue contextualizes these trends for Southeast Asia with implementation-relevant insights and country-focused updates. 

A central focus of this issue is the "definitive phase" of the European Union’s CBAM, which launched in January 2026. The brief provides a detailed sectoral analysis for Indonesia, the Philippines, and Viet Nam, noting that while their economy-wide exposure remains below 1%, specific industries—particularly iron, steel, and aluminum—face potentially significant liabilities unless domestic decarbonization and robust measurement systems are prioritized. 

The publication further examines national milestones, including Indonesia's strengthened legal framework under Regulation 110/2025, which formally enables international carbon trading under Article 6. It also tracks the progress of Article 6.2 bilateral agreements, where over 100 arrangements have been announced or formalized, signalling growing interest in cross-border carbon transactions led by purchasing countries like Singapore and Japan. Furthermore, while Indonesia remains the only Southeast Asian country with an operational ETS, the implementation of its legislated carbon tax under Law 7/2021 remains postponed.

Articles

International and Regional Developments in Carbon Pricing

Carbon pricing has become mainstream globally, with 43 carbon taxes and 38 ETSs in force covering over 23% of global emissions. This section draws on Canada's experience with carbon pricing reform, offering lessons relevant to Southeast Asia.

Read the article here


Border Carbon Adjustments (BCAs) and Article 6 Update

The EU CBAM entered its definitive phase in January 2026. This section analyzes the sectoral trade exposure of Indonesia, the Philippines, and Viet Nam, and tracks progress on Article 6 bilateral carbon trading agreements, where Japan and Singapore have emerged as the most active purchasing countries.

Read the article here.


Indonesia Update

Indonesia is the only Southeast Asian country with an operational ETS. This section examines the significance of Regulation 110/2025 in formally enabling international carbon trading under Article 6 and the current state of market activity on IDXCarbon.

Read the article here.


The Philippines Update

Carbon pricing in the Philippines is shifting from policy debate to formal legislation, with multiple bills now before the 20th Congress. The section also examines the Department of Energy's new framework for generating and trading carbon credits in the energy sector.  

Read the article here.


Viet Nam Update

Trading on Viet Nam's carbon market has been postponed to end of 2026, but regulatory progress continues. New rules on the domestic trading exchange and national registry system are in place, and the country has taken its first steps toward international carbon trading under Article 6 of the Paris Agreement.

Read the article here.

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Bridging the Gap

Financing mechanisms for municipal energy transitions in South Africa

Less than 10% of climate finance reaches South African municipalities, despite their central role in delivering the just energy transition (JET). Drawing on survey data, policy analysis, and key informant interviews, this report diagnoses the structural, institutional, and fiscal barriers behind this gap and sets out practical financing mechanisms to close it.

March 24, 2026

Policy Recommendations

  • Build municipal capacity for JET implementation.

  • Strengthen tracking and accountability of climate finance flows.

  • Strengthen municipal financial systems.

  • Foster public–private partnerships for localized renewable energy.

South African municipalities are essential to the JET, yet they remain marginal recipients of climate finance. As electricity distributors, infrastructure managers, and the primary point of contact between communities and the state, municipalities are indispensable to delivering climate resilience and renewable energy at the local level. Yet despite their critical role, South African municipalities receive less than 10% of tracked climate finance—constrained by weak creditworthiness, limited technical capacity, policy misalignment between national and local governments, and funding mechanisms that were not designed with local government in mind. 

This report investigates why the financing gap persists and what it will take to close it. Based on survey data from 20 municipalities, key informant interviews, and analysis of national and global climate finance flows, the report maps the structural barriers blocking municipal access to climate finance and evaluates the instruments available to address them. 

The report identifies four priority areas for reform: capacity building for JET implementation; improved tracking of municipal climate finance flows; stronger financial systems and cost-reflective tariff structures; and expanded public–private partnerships. Addressing these gaps is essential if South Africa's just energy transition is to be locally inclusive, financially sustainable, and equitably distributed across all municipalities—not just the metros.

Participating experts

Report details

Topic
Energy
Just Transition
Sustainable Finance
Region
South Africa
Impact area
Climate
Sustainable Economies
Publisher
IISD
Copyright
IISD, 2026