Explainer: Climate risk & financial regulation — what it is, why it matters, and how to evaluate options

The European Central Bank's 2025 climate stress test revealed that eurozone banks face cumulative credit losses of between 4.3% and 9.8% of total lending portfolios under a disorderly transition scenario, yet only 38% of supervised institutions had integrated climate risk into their core risk management frameworks. This disconnect between measured exposure and institutional preparedness defines the current state of climate risk and financial regulation in Europe, and it creates both compliance urgency and strategic opportunity for procurement, risk, and sustainability teams across the financial sector.

Why It Matters

Climate risk has moved from the periphery of financial supervision to its centre. The European Banking Authority (EBA) published binding guidelines on the integration of environmental, social, and governance (ESG) risks into credit institution supervision, effective from January 2026. The European Insurance and Occupational Pensions Authority (EIOPA) mandated climate scenario analysis for insurers under Solvency II amendments adopted in 2025. The European Securities and Markets Authority (ESMA) issued updated sustainable finance disclosure expectations for asset managers, tightening anti-greenwashing provisions across the fund classification framework.

For procurement teams in financial institutions, this regulatory convergence translates into concrete purchasing requirements. Climate risk analytics platforms, scenario modelling tools, data providers, and advisory services have become essential infrastructure. The global market for climate risk analytics reached $3.4 billion in 2025 according to Verdantix, growing at 28% annually. Yet procurement decisions in this space remain complex because standards are still evolving, vendor claims often outpace capabilities, and the regulatory landscape differs materially across jurisdictions even within Europe.

The financial consequences of inaction are substantial. The Network for Greening the Financial System (NGFS), which now includes 134 central banks and supervisors, estimated in its 2025 scenario update that delayed and disorderly transition pathways could reduce global GDP by 5 to 13% by 2050 relative to an orderly transition. For individual institutions, regulatory penalties are already materialising. The ECB issued over 40 supervisory findings related to climate risk management deficiencies in 2024, with several institutions receiving binding requirements to remediate within 12 to 18 months.

Key Concepts

Physical Risk encompasses the financial impact of climate-related events on asset values, creditworthiness, and operational continuity. Acute physical risks include extreme weather events such as floods, storms, wildfires, and heatwaves. Chronic physical risks include sea-level rise, sustained temperature increases, water stress, and biodiversity loss. The ECB's 2025 assessment found that approximately 30% of eurozone corporate loan exposures are concentrated in sectors and geographies highly vulnerable to physical climate risks, yet fewer than 20% of banks had conducted granular, asset-level physical risk assessments.

Transition Risk arises from the economic adjustments required to move toward a low-carbon economy. These include policy changes (carbon pricing, emissions standards, fossil fuel subsidy removal), technological disruption (renewable energy cost declines, electric vehicle adoption), market shifts (changing consumer preferences, stranded asset repricing), and reputational impacts. The European Systemic Risk Board estimated in 2025 that a sudden repricing of carbon-intensive assets could generate losses of 8 to 15% across European equity markets, with concentrated impacts in energy, materials, and transport sectors.

Double Materiality is the conceptual framework underpinning the EU Corporate Sustainability Reporting Directive (CSRD). Unlike single materiality (which considers only how sustainability issues affect the company's financial performance), double materiality also requires assessment of how the company's activities affect people and the environment. For financial institutions, this means evaluating both how climate change affects their portfolios and how their financing decisions contribute to or mitigate climate change. The European Sustainability Reporting Standards (ESRS) operationalise double materiality through detailed disclosure requirements across environmental, social, and governance topics.

Climate Scenario Analysis applies structured frameworks to assess institutional resilience under different climate futures. The NGFS provides the primary reference scenarios used by European supervisors: orderly transition (Net Zero 2050), disorderly transition (delayed action with abrupt policy changes), and hot house world (insufficient action with severe physical impacts). Institutions must model portfolio-level impacts across these scenarios, typically over time horizons extending to 2030, 2040, and 2050. The analytical complexity is significant: scenario analysis requires integration of macroeconomic projections, sector-level transition pathways, geographic physical risk data, and counterparty-specific exposure information.

Taxonomy Alignment refers to the classification of economic activities against the EU Taxonomy Regulation's technical screening criteria. Financial institutions must report the proportion of their assets aligned with taxonomy-defined environmentally sustainable activities. The taxonomy covers six environmental objectives: climate change mitigation, climate change adaptation, sustainable use of water and marine resources, transition to a circular economy, pollution prevention, and protection of biodiversity and ecosystems. As of 2025, taxonomy reporting obligations apply to large credit institutions, asset managers, insurance companies, and investment firms subject to the CSRD.

Climate Risk and Financial Regulation KPIs: Benchmark Ranges

Metric	Below Average	Average	Above Average	Top Quartile
Portfolio climate risk coverage (% assets assessed)	<30%	30-55%	55-80%	>80%
Scenario analysis time horizons	Single (2030)	2030 + 2050	2030, 2040, 2050	Multi-horizon + stress test
Taxonomy-aligned asset ratio (banks)	<5%	5-12%	12-25%	>25%
CSRD readiness score (internal audit)	<40%	40-60%	60-80%	>80%
Climate data vendor coverage (counterparties)	<50%	50-70%	70-85%	>85%
Physical risk granularity	Country-level	Regional	Asset-level	Asset-level + forward-looking
Integration into credit decisioning	None	Qualitative overlay	Scorecard adjustment	Fully embedded PD/LGD

What's Working

ECB Supervisory Integration

The ECB's progressive approach to climate risk supervision has created the most advanced regulatory framework globally. Following the 2022 thematic review and the 2024 climate stress test, the ECB moved from guidance to enforcement. By late 2025, all directly supervised institutions were required to have climate risk governance structures, dedicated expertise, and initial scenario analysis capabilities. Institutions that failed to meet expectations received Pillar 2 capital add-ons, creating direct financial consequences for non-compliance. This approach has driven rapid capability building: the proportion of significant institutions with dedicated climate risk teams increased from 15% in 2022 to 72% in 2025.

Dutch Central Bank (De Nederlandsche Bank) Transition Risk Framework

DNB pioneered the integration of transition risk into macroprudential supervision, publishing one of the first comprehensive energy transition stress tests in 2018 and iterating through multiple rounds. Their 2025 assessment modelled impacts on Dutch financial institutions across orderly and disorderly transition scenarios with sector-specific granularity covering over 50 industries. The framework has been adopted as a reference model by several other European supervisors and influenced the NGFS scenario design. DNB's approach demonstrates that supervisory-led scenario analysis can be both analytically rigorous and practically implementable at the institutional level.

CSRD and ESRS Implementation Momentum

The first wave of CSRD reporting (covering fiscal year 2024 for large public-interest entities with more than 500 employees) generated substantial investment in climate risk data infrastructure. Deloitte's 2025 CSRD readiness survey found that large European financial institutions allocated an average of 2.1 million euros to CSRD compliance programmes, with approximately 40% directed toward climate risk data acquisition and analytics platforms. While implementation quality varied significantly, the regulatory mandate created procurement demand for standardised, auditable climate risk data that is improving overall data quality across the market.

What's Not Working

Data Gaps and Quality Challenges

Climate risk assessment depends on data that remains incomplete and inconsistent across European markets. Scope 3 emissions data, critical for assessing financed emissions, is available for fewer than 30% of listed European companies according to CDP's 2025 analysis. For small and medium enterprises, which represent the majority of bank lending portfolios, reliable emissions data is essentially unavailable. Institutions rely heavily on estimation models and sector averages, introducing uncertainty that undermines the precision of risk assessments. The European Financial Reporting Advisory Group (EFRAG) acknowledged this gap in its 2025 implementation guidance, permitting phased approaches to Scope 3 disclosure.

Fragmented Regulatory Landscape

Despite harmonisation efforts, European climate risk regulation remains fragmented across supervisory authorities, member states, and regulatory domains. Banks face requirements from the ECB (or national supervisors for less significant institutions), EBA prudential guidelines, CSRD disclosure requirements, taxonomy reporting obligations, and national variations in implementation. A 2025 survey by the Institute of International Finance found that large European banks spent an average of 18 months aligning internal processes to meet overlapping regulatory timelines, with compliance costs averaging 3.5 to 5 million euros annually for institutions with more than 50 billion euros in assets.

Model Risk and Methodological Uncertainty

Climate scenario analysis relies on models with significant inherent uncertainty. Physical risk models must project localised climate impacts decades into the future. Transition risk models must anticipate policy changes, technology trajectories, and market dynamics that are fundamentally unpredictable. The Bank of England's 2025 review of its Climate Biennial Exploratory Scenario identified substantial divergence in results across participating institutions using the same input scenarios, suggesting that methodological choices drive outcomes as much as underlying risk exposures. This model risk creates challenges for supervisors attempting to compare results across institutions and for procurement teams evaluating competing analytics platforms.

Decision Framework for Evaluating Climate Risk Solutions

Step 1: Define Regulatory Scope. Map all applicable regulatory requirements across jurisdictions and supervisory authorities. Identify binding deadlines, reporting formats, and assurance requirements. Prioritise requirements with the nearest compliance deadlines and highest penalties for non-compliance.

Step 2: Assess Data Infrastructure. Evaluate existing data coverage for counterparty emissions, physical asset locations, sector classifications, and financial exposure data. Identify gaps that must be filled through external data procurement versus internal data enhancement. Prioritise data sources that align with regulatory methodological requirements (PCAF for financed emissions, NGFS scenarios for stress testing).

Step 3: Evaluate Analytics Platforms. Compare climate risk analytics vendors across: scenario coverage (NGFS scenarios, bespoke scenarios), physical risk granularity (asset-level versus regional), transition risk modelling methodology (top-down versus bottom-up), data integration capabilities (API connectivity, batch processing), and regulatory reporting output formats (ECB templates, CSRD/ESRS, taxonomy alignment).

Step 4: Assess Integration Requirements. Determine how climate risk outputs must integrate with existing risk management systems (credit scoring, portfolio management, regulatory reporting). Evaluate vendor capabilities for embedding climate risk metrics into operational workflows versus standalone analytical tools.

Step 5: Plan for Evolution. Regulatory requirements will continue to evolve. Select solutions with demonstrated adaptability to changing standards, active regulatory monitoring capabilities, and flexible data architectures that can accommodate new data sources and methodological updates.

Key Players

Data and Analytics Providers

MSCI offers climate risk analytics covering physical risk, transition risk, and scenario analysis for over 10,000 corporate issuers and 200,000 securities globally. Their Climate Value-at-Risk model has become one of the most widely adopted transition risk metrics among European asset managers and banks.

S&P Global Sustainable1 provides integrated climate risk data spanning physical risk scoring, carbon earnings at risk, and taxonomy alignment analytics. Their acquisition of Trucost and The Climate Service consolidated substantial climate analytics capabilities into a single platform.

Moody's Analytics delivers physical risk modelling through its RMS climate models, covering flood, windstorm, wildfire, and heat stress at asset-level resolution. Their integration of climate risk into credit risk models addresses the ECB's requirement to embed climate factors into probability of default and loss-given-default estimations.

Specialist Providers

Jupiter Intelligence specialises in forward-looking physical risk analytics, providing hyperlocal climate projections at resolutions of 90 metres or finer. Their ClimateScore platform serves insurers, banks, and real estate investors requiring granular asset-level physical risk assessment.

Carbon4 Finance (Carbone 4) provides transition risk analytics grounded in bottom-up, activity-level carbon accounting rather than revenue-based estimation. Their methodology aligns closely with the Partnership for Carbon Accounting Financials (PCAF) standard used by over 470 financial institutions.

Ortec Finance delivers climate scenario analysis specifically designed for pension funds and insurers, integrating climate pathways with long-term liability modelling and asset-liability management.

Action Checklist

• Map all applicable climate risk regulatory requirements, deadlines, and supervisory expectations across relevant jurisdictions
• Conduct a gap assessment comparing current climate risk capabilities against regulatory requirements
• Evaluate and procure climate risk data covering counterparty emissions (Scope 1, 2, and 3), physical asset locations, and sector transition pathways
• Implement scenario analysis capabilities aligned with NGFS reference scenarios and supervisory stress test specifications
• Establish governance structures with board-level oversight of climate risk, dedicated expertise, and clear escalation procedures
• Integrate climate risk metrics into credit decisioning, portfolio management, and capital allocation processes
• Prepare CSRD and taxonomy reporting infrastructure with audit-ready data trails and internal controls
• Budget for ongoing regulatory evolution, including staff training, platform updates, and advisory support

FAQ

Q: Which European regulations are most immediately relevant for financial institutions? A: The three most pressing regulatory streams are: (1) ECB/national supervisor prudential expectations for climate risk integration into governance, strategy, risk management, and capital planning; (2) CSRD disclosure requirements under the European Sustainability Reporting Standards, with the first wave covering fiscal year 2024; and (3) EU Taxonomy reporting obligations requiring disclosure of taxonomy-aligned asset ratios. For insurers, Solvency II amendments incorporating climate scenario requirements add a fourth regulatory dimension.

Q: How much should a mid-sized European bank expect to spend on climate risk compliance? A: Based on 2025 market data, mid-sized European banks (total assets of 10 to 50 billion euros) typically allocate 1.5 to 4 million euros annually for climate risk compliance, covering data procurement (30 to 40% of budget), analytics platforms (20 to 30%), internal staffing (20 to 25%), and advisory and assurance services (10 to 20%). These costs are expected to decline as a proportion of total compliance spending as tools mature and data quality improves, but absolute spending is likely to increase through 2028 as regulatory requirements expand.

Q: What is the difference between climate stress testing and climate scenario analysis? A: Climate stress testing, as conducted by supervisors like the ECB and Bank of England, applies specific adverse scenarios to institutional portfolios to assess capital adequacy under climate-related shocks. It is typically standardised across institutions for comparability. Climate scenario analysis is broader, encompassing internal strategic planning exercises that may use bespoke scenarios tailored to institutional-specific exposures and strategies. Regulatory expectations increasingly require both: standardised stress tests for supervisory purposes and institution-specific scenario analysis for internal risk management and strategic planning.

Q: How should procurement teams evaluate climate risk data providers? A: Key evaluation criteria include: coverage breadth (number of counterparties, sectors, and geographies), data granularity (asset-level versus company-level versus sector averages), methodological transparency (published methodologies, academic validation), regulatory alignment (PCAF, NGFS, ESRS compatibility), update frequency (quarterly versus annual), integration capabilities (API access, standard data formats), and track record with regulatory assurance (whether the data has passed external audit scrutiny in CSRD or supervisory reporting contexts).

Q: Will climate risk regulation converge globally or remain fragmented? A: The International Sustainability Standards Board (ISSB) standards (IFRS S1 and S2) provide a global baseline for sustainability and climate disclosure, adopted by jurisdictions including the UK, Singapore, and Australia. However, the EU's double materiality approach under CSRD goes beyond the ISSB's financial materiality focus, creating persistent divergence for institutions operating across both frameworks. Convergence is likely in data standards and scenario frameworks (the NGFS scenarios are used globally), but regulatory requirements will continue to differ in scope, materiality definitions, and enforcement approaches for the foreseeable future.

Sources

• European Central Bank. (2025). 2025 Climate Risk Stress Test: Results and Supervisory Assessment. Frankfurt: ECB Banking Supervision.
• Network for Greening the Financial System. (2025). NGFS Climate Scenarios: Technical Documentation, 5th Edition. Paris: NGFS Secretariat.
• European Banking Authority. (2025). Guidelines on the Integration of ESG Risks in the Supervision of Credit Institutions. Paris: EBA.
• Verdantix. (2025). Global Climate Risk Analytics Market Forecast 2025-2030. London: Verdantix.
• Deloitte. (2025). CSRD Readiness Survey: European Financial Institutions Implementation Status. Amsterdam: Deloitte.
• Institute of International Finance. (2025). Climate Risk Regulation: Compliance Cost Survey of Global Financial Institutions. Washington, DC: IIF.
• European Systemic Risk Board. (2025). Transition Risk Monitoring: Asset Repricing Scenarios for the European Financial System. Frankfurt: ESRB.
• CDP. (2025). European Corporate Climate Disclosure: Coverage, Quality, and Gaps. London: CDP.