Capitals Hub Canada, in conjunction with domestic and international partners, is at the forefront of creating Environmental Liability Units (ELUs) — financial instruments that transform mandatory environmental obligations into investable securities. Unlike carbon credits, ELUs address the full spectrum of extraction impacts: biodiversity, water, land use, and social and human capital.
With over $850 billion in unfunded environmental liabilities globally and mandatory nature and climate disclosures taking effect across major jurisdictions, ELUs provide a market-based solution that makes comprehensive mine remediation financially viable for the first time — without governments or taxpayers bearing the cleanup costs.
Explore the Details
Canada, and much of the wider world, is currently in a very unusual situation in which there are a number of powerful imperative forces that seem to be operating in opposition to each other.
On the one hand, there is the need to extract the resources and materials required to strengthen and secure the economy as well as power modern green technologies. On the other hand, the extraction of these same resources can often have extremely detrimental, and expensive, long-term effects on both the environment and the communities that exist nearby these sites.
Although there have been efforts made to try to strike a balance between these two problems, the solutions have generally been sub-optimal in that they do not offer adequate safeguards, leaving the environment and communities vulnerable to negative impacts, while at the same time creating excessively long assessment periods which can curtail investments. This offers the worst of both worlds, with taxpayers having to pick up the tab for extensive and long duration clean-up and remediation efforts and suffering the consequences of permanent damage without receiving the benefits of timely and sustainable infrastructure and resource projects.
These impacts can also damage reconciliation efforts with First Nations and permanently degrade the irreplaceable biodiversity and ecosystems that all Canadians have as their national heritage. Economically, these impacts can also damage supply chains and force companies to source materials that are not truly sustainable, undercutting consumer trust and creating a negative spiral.
There is no silver bullet that can solve all of these problems. However, there are ways to (at least in part) mitigate the negatives and create the conditions whereby the impacts can be dealt with more efficiently and effectively, without governments needing to make costly long-term investments to clean up corporate messes.
Scale of the Problem
Mining and resource extraction is one of the oldest human industrial activities. People have been collecting stones to make tools and weapons since time immemorial, and as civilizations grew and flourished, quarries for raw materials and valuable stones were developed. Even back in the pre-modern era, these types of activities could have toxic effects on people and the environment, but the reach of these impacts was relatively limited, and the technologies were not very advanced. Even if a mess were made, the world was generally big enough that other sites could be found and the impacts could be contained.
Unfortunately, this type of logic no longer applies in the early 21st Century. With a global population of 8 billion plus, advanced extraction technologies, and (in particular) a seemingly insatiable demand for resources, these impacts have become much more widespread and severe. Unfortunately, in the current economic setting, companies involved in the resource extraction industry have not come close to covering these liabilities.
- Financial: Over $850 billion in unfunded environmental liabilities globally
- Geographic: Affecting jurisdictions from Canada to Colombia, Brazil to DRC
- Environmental: Water contamination, soil degradation, acid mine drainage, methane emissions, biodiversity loss
- Social: Community health impacts, displacement, loss of traditional livelihoods
Why Traditional Finance Fails
These failures are part of a larger systemic problem which has led to many of the environmental and societal ills that plague the world currently. Climate change has been termed the ultimate market failure, but this is not because the markets have failed to respond appropriately, quite the contrary. The signals that the markets have received are the problem, and this extends to biodiversity, water and land management, and considerations of community economic and social stability and security. These are what are referred to as Natural, Social and Human Capital, which are often discounted or ignored by corporations and governments in favour of financial capital. These other capitals are seen as externalities outside of the system, but this is increasingly proving to be an incorrect and frankly quite dangerous assumption.
In the case of resource extraction, these externalities represent the aforementioned liabilities which do end up having to be dealt with at some point or another. However, the companies themselves, and governments in the short term, have often not been incentivized to deal with these issues for the following reasons:
- No revenue generation: Remediation costs without asset value
- Long time horizons: 20-50+ year monitoring requirements
- Market failure: Public goods (clean water, ecosystems) not monetized
As such, the current models will continue to fail to address the problems outlined above unless a new paradigm can be introduced.
The convergence of regulatory pressure, investor expectations, and operational risk is creating unprecedented demand for comprehensive environmental liability solutions. Recent industry analysis identifies several critical drivers:
- Tailings Governance Imperative: While 67% of ICMM member facilities have achieved Global Industry Standard on Tailings Management (GISTM) conformance, the World Mine Tailings Failures database forecasts 13 catastrophic failures between 2025-2029. The November 2025 UK High Court ruling on BHP’s Samarco liability confirmed that failure to meet tailings standards constitutes negligence across multiple jurisdictions, creating significant financial exposure for non-compliant operators.
- Nature and Water as Investment Dealbreakers: Barclays’ 2025 analysis of 250 mines calculated that nature risks could cut mining company earnings by 25% over five years. With 730+ organizations adopting TNFD (Task Force on Nature-related Financial Disclosures), representing $22 trillion in assets, companies unable to demonstrate coherent nature and water strategies face restricted access to capital for new projects and expansions.
- Critical Minerals Rush Intensifying Social Tensions: The IEA’s Global Critical Minerals Outlook 2025 forecasts steep demand growth, while the Business & Human Rights Resource Centre’s Transition Minerals Tracker documents 835 allegations of abuse linked to major operations over 15 years. This creates an uncomfortable tension: securing minerals essential to defense, energy, and technology without repeating past mining booms’ inequality and environmental devastation.
- ESG Reporting Convergence and Enforcement: IFRS S1 and S2 standards are being integrated into reporting regimes across dozens of jurisdictions covering more than half of global GDP, with mandatory climate disclosures starting from 2025. GRI 14: Mining Sector 2024 takes effect globally from January 2026, requiring granular disclosure of water use, land disturbance, and biodiversity as material topics. Regulators in Australia, UK, EU, and Canada have made greenwashing enforcement a priority.
Article 6.4 of the United Nations Framework Convention on Climate Change is projected to generate demand for ~734 MtCO2e by 2030. ELUs can capture this carbon finance (covering 20-25% of remediation costs) while accessing a much larger pool of sustainability-linked capital for the full environmental restoration work (the remaining 75-80%).
Beyond carbon markets, ELUs address the structural gap in sustainable finance: 95% of corporate leaders see climate transition as a source of growth (HSBC 2025), yet traditional financing mechanisms have failed to monetize comprehensive environmental restoration. Development finance institutions (CAF, IADB, BNDES) actively seek scalable instruments that deliver climate action while addressing nature, water, and social impacts—precisely what ELUs provide.
This dual-revenue model makes comprehensive mine remediation financially viable for the first time—solving the $850+ billion global environmental liability crisis while delivering climate action and sustainable development at scale.
ELUs essentially function by transforming mandatory environmental obligations into investable financial instruments. This would be similar to the functioning of carbon credits, but the ELUs would cover a wider range of impacts and are also more robust in their ability to both generate financing at an earlier stage of a project as well as being able to channel resources into concrete mitigation efforts at the site level.
The Simple Metric
Mining companies are already required by law to:
- Report their environmental impacts (water, soil, biodiversity, carbon emissions)
- Provide financial assurance (security bonds) to guarantee cleanup and restoration of degraded lands
The ELUs would essentially utilize what’s already being measured and reported in terms of impacts. These measurements become the liability itself—quantified in monetary terms based on the cost to restore water quality, remediate soil, replant ecosystems, and eliminate ongoing emissions.
From Liability to Asset
Instead of treating these liabilities as dead weight on a balance sheet, they would be converted (based on the costs of remediation) into tradeable environmental securities, namely ELUs. In terms of the financial assurance that is required, individual company obligations would be aggregated (pooled) into a collective facility that achieves economies of scale for remediation activities. This pooling allows smaller operators to access institutional financing that they couldn’t otherwise secure individually, while larger operators benefit from reduced administrative costs and improved capital efficiency. This pooled financing would then be directed toward active remediation and restoration activities that deliver measurable outcomes. These would include:
- Decarbonization: Eliminating diesel pumping, preventing methane emissions
- Water Management: Treating acid mine drainage, restoring aquatic ecosystems
- Green Energy: Powering monitoring equipment with renewables
- Progressive Closure: Ongoing restoration activities in stages over the mine’s lifecycle rather than deferred cleanup at the very end of the mining operation
- Re-mining: Recovering valuable materials from tailings using cleaner methods (and thus also reducing the negative impacts of the tailings themselves)
Unlike carbon credits that often offset emissions happening elsewhere, the ELU methodology focuses on early intervention at the source of the impacts—preventing environmental (and societal/community) damage before it becomes irreversible.
Revenue Streams: How ELUs Generate Value
ELUs operate through a dual-revenue model that makes comprehensive environmental remediation financially viable:
- Carbon Revenue (20-25%): The carbon reduction component of ELUs can be sold under Article 6.4 of the Paris Agreement at market prices (currently ~$15-30/tCO2e), providing baseline funding that covers roughly one-quarter of total remediation costs.
- Environmental Premium (75-80%): The comprehensive environmental restoration value—addressing water quality, biodiversity, soil remediation, and social impacts—will attract premium pricing from various stakeholders.
This dual-revenue structure transforms what would otherwise be a $500K-$1M carbon-only project into a $2.5M-$6M comprehensive remediation initiative, making it economically feasible to address the full environmental and social liability footprint of mining operations without implicating governments or taxpayers in the cleanup costs.
Who Purchases ELUs and Why
There will never be a “green premium” on raw commodities themselves—copper is copper, lithium is lithium. But the companies that depend on these critical minerals in the supply chains for their products need to demonstrate that they are sourcing these resources responsibly in order to maintain market access, consumer confidence, and investor support. For this reason, various types of businesses and institutions would be prime customers for the ELUs, including:
- Value chain purchasers for these raw materials which can include:
- Automotive manufacturers sourcing battery metals
- Battery producers requiring clean supply chains
- Electronics companies facing supply chain transparency demands
- Infrastructure developers procuring steel and concrete materials
- ESG-focused institutional investors seeking measurable impact
- Insurance companies managing environmental liability portfolios
- Sovereign wealth funds with sustainability mandates
- Development finance institutions (CAF, IADB, BNDES) looking to deploy climate finance at scale
The Business Case
By purchasing ELUs, businesses obtain a number of direct benefits to themselves, including:
- Improved ESG scoring with verified environmental restoration
- Reduced sustainability risk in their supply chains
- Lowered cost of capital by becoming more attractive to impact investors and pension funds
- Maintenance of market access as regulations tighten around environmental and ethical standards
- Building consumer trust through a demonstrable commitment to environmental stewardship
It should be made clear that the ELUs are not meant simply to check off an ESG check box; there is a clear self-interested financial logic for companies at play. By reducing sustainability risk, they lower their financing costs and create a competitive advantage. The fact that it can also benefit the environment, reduce the impacts of climate change, and provide direct support to communities close to these extraction sites simply makes this a “win-win” scenario.
ELUs function as tradeable environmental securities that transform mandatory environmental obligations into investable financial instruments. The structure is designed to provide transparency, regulatory oversight, and market liquidity while ensuring environmental integrity.
Structure and Management
- Registry and Issuance: Capitals Hub Canada will work with a blockchain-based registry system (ZERO13) that tracks each ELU from issuance through retirement. Mining companies would apply for ELU issuance based on their verified environmental liabilities and proposed remediation plans. Each ELU represents a quantified unit of environmental obligation (e.g., 1 tonne CO2e plus associated water, soil, and biodiversity impacts).
- Custodian and Trustee Structure: Financial assurance funds are held by independent third-party trustees (major financial institutions or specialized environmental trust funds) who will release capital for verified remediation activities. This ensures that mining companies cannot access funds without demonstrating completion of environmental work to established standards.
- Market Infrastructure: ELUs trade on regulated environmental commodity exchanges (similar to carbon markets) or through over-the-counter transactions facilitated by licensed brokers. CHC and its partners can provide market oversight and establish listing requirements, while integration with existing carbon market infrastructure (Article 6.4 mechanisms) ensures interoperability.
Valuation and Price Discovery
- Multi-Capital Accounting Framework: ELU value will be calculated using internationally recognized accounting standards that monetize natural capital (biodiversity, water, soil), social capital (community impacts, health), and human capital (employment, safety) alongside financial capital. CHC will work with independent valuation firms to apply these frameworks using site-specific data, comparable remediation costs, and regulatory requirements.
- Market-Based Pricing: Initial ELU pricing is a weighted basket based on: (1) the carbon component at Article 6.4 market rates (~$15-30/tCO2e), (2) environmental remediation costs from comparable projects and regulatory bonding requirements, and (3) the premium for comprehensive sustainability attributes demanded by value chain partners. Secondary market trading can help to establish price discovery through supply and demand dynamics, with transparency requirements ensuring all transactions are publicly reported.
Regulatory Oversight and Standards
- Verification and Certification: Accredited third-party verifiers (environmental auditors certified in multi-capital accounting) will conduct the initial and ongoing assessments. Verification follows Article 6.4 Supervisory Body standards for carbon components, with additional protocols for water quality indices, biodiversity metrics, and social impact indicators. Annual re-verification will ensure remediation activities are proceeding as planned.
- Compliance and Enforcement: National securities regulators (in Canada these would be provincial securities commissions, with equivalent bodies internationally) will oversee ELU trading to prevent market manipulation and ensure rigorous disclosure requirements. Environmental regulators (e.g., Ministries of Environment, mining departments) will retain authority over site-specific remediation standards. This dual regulatory structure ensures both financial market integrity and environmental outcomes.
- Integration with Existing Frameworks: ELUs can align with established sustainability reporting standards (GRI 14: Mining Sector 2024, TNFD for nature-related disclosures, IFRS S2 for climate). This ensures compatibility with corporate ESG reporting requirements and facilitates integration into institutional investment mandates. Development finance institutions (CAF, IADB, BNDES) can count ELU-backed projects toward climate finance commitments under Paris Agreement Article 2.1c.
The ELUs are similar to Carbon Credits, but have a number of advantages and differences which make them particularly well-suited to addressing issues encountered by extractive industries.
| Dimension | Carbon Credits | Environmental Liability Units (ELUs) |
|---|---|---|
| Primary Focus | GHG emissions only | Comprehensive environmental impact (carbon, water, soil, biodiversity, social) |
| Timing | Variable, but benefits may not accrue directly to site until late stages or end of project | Early and ongoing remediation efforts directly targeting each phase of extraction project |
| Location | Often used to offset emissions occurring elsewhere | Intervention at the pollution source with efforts to mitigate on-site impacts |
| Scope | Single capital (atmospheric carbon) | Multi-capital (natural, social, human, financial) |
| Additionality Test | Would the project happen without credit revenue? | Would comprehensive remediation occur without ELU financing? |
| Revenue Stream | Carbon market price (~$15-30/tCO2e) | Carbon component (20-25%) + Environmental premium (75-80%) |
| Typical Project Value | $500K - $1M (carbon only) | $2.5M - $6M (carbon + environmental restoration) |
| Liability Coverage | Creates new offsetting obligations but doesn’t address pre-existing environmental liabilities | Transforms pre-existing environmental and social liabilities into assets |
| Market Drivers | Climate policy, net-zero commitments | Supply chain sustainability, ESG investing, regulatory compliance |
| Permanence Risk | High for some projects (incidents such as forest fires can result in reversals) | Lower (mine closure is permanent and restoration is generally durable) |
| Co-Benefits | Sometimes delivers water/biodiversity benefits | Co-benefits are core to the instrument’s value proposition |
| Monitoring | Carbon accounting (tCO2e) | Multi-indicator monitoring (water quality indices, biodiversity metrics, employment data) |
A Few Words on Reporting
Much of the positive impact of the ELUs depends on companies clearly and accurately measuring and reporting on their impacts on natural (and social) capital and then assessing how to mitigate those impacts. Clear and accurate reporting is key, as the ELUs will need to be assessed and administered by third parties (i.e. financial institutions, government regulators, etc.) who will need to be able to easily understand and compare these reports. While there are some excellent frameworks being utilized, these can be narrowly focused (on GHG emissions, water use, biodiversity), overly complicated (particularly for SMEs), and mutually incompatible. This severely limits the utility of reporting and also makes companies (again particularly SMEs, which form the backbone of most supply chains) question the utility of the exercise.
The ELUs would provide a solid incentive for resource extraction companies to report more effectively, as there would be a direct financial benefit. If this were also backed by regulations and investor requirements, that would add further incentives.
As part of this project and other related work, the CHC is looking at the use of technology as a means of addressing some of the challenges currently faced by reporting frameworks. This would include ways of making it easier for businesses to obtain the necessary information and correctly complete reporting templates, as well as a method of translating between different systems. This work will progress in parallel with the ELU project.
The Roadmap
The window to establish ELUs as the global standard for mining environmental finance is now. With mandatory climate and nature disclosures taking effect across many major jurisdictions in 2025-2026, mining companies face immediate pressure to demonstrate credible environmental strategies. The critical minerals rush is accelerating project timelines while intensifying social and environmental scrutiny. Companies that act decisively to address their environmental liabilities will gain competitive advantage in capital access, regulatory approval, and value chain partnerships.
Some companies may argue that because certain jurisdictions are relaxing ESG standards, and that the market environment for new initiatives is not promising, this is not the time to act. However, sooner or later, this will change and those that are not actively pursuing these could find themselves at a significant disadvantage.
| Phase | Timeline | Key Activities | Budget |
|---|---|---|---|
| Phase 1 Methodology Development |
2026–2027 | Convene technical working group (mining companies, environmental scientists, financial institutions, Indigenous communities, regulatory bodies, verification specialists). Develop draft multi-capital accounting methodology aligned with Article 6.4 standards. Select 3-5 pilot sites across diverse mining types and jurisdictions. Submit methodology to UNFCCC Article 6.4 Supervisory Body (target Q3 2026). | $1.5M – $2.5M |
| Phase 2 Market Development |
2027–2028 | Establish ELU registry infrastructure (blockchain-based tracking, transparency portal, issuance/retirement protocols). Develop accredited verification network across target jurisdictions. Engage buyers and sellers — mining companies, value chain partners, institutional investors, DFIs. Issue first credits from pilot sites. | $3M – $5M |
| Phase 3 Scale-Up |
2028–2030 | 50-100 sites in active remediation across multiple jurisdictions. 5-10 MtCO2e issued with total environmental restoration value of $125M-$400M. $500M-$1B capital mobilized through ELU sales, establishing ELUs as a recognized asset class. | $10M – $20M annually |
Questions? Contact us at luc.lapointe@capitalshubcanada.org
