Climate Risk ESG Risk Management TCFD Scenario Analysis Transition Planning

Introduction

Climate risk has become a central focus of financial regulation, with regulators expecting robust risk management frameworks. This article examines regulatory expectations and best practices for managing climate risk.

Types of Climate Risk

Physical Risk

  • Acute physical risk: Extreme weather events (floods, storms, wildfires, heatwaves)
  • Chronic physical risk: Long-term climate shifts (sea level rise, temperature increases, water scarcity)
  • Impacts: asset damage, supply chain disruption, operational interruption, commodity price volatility

Transition Risk

  • Policy and legal risk: Carbon pricing, emissions regulations, disclosure requirements
  • Technology risk: Low-carbon technology disruption, stranded assets
  • Market risk: Changing consumer preferences, investor sentiment, commodity prices
  • Reputational risk: Public perception, stakeholder pressure, litigation

Regulatory Frameworks

European Central Bank (ECB)

  • Climate stress tests: 2022 and 2024 exercises; assessing bank resilience
  • Supervisory expectations: Guide on climate-related and environmental risks (2020)
  • Climate risk disclosure: Expectations for banks to disclose climate risks
  • Transition planning: Banks expected to develop transition plans

UK Prudential Regulation Authority (PRA)

  • Supervisory Statement SS3/19: Climate risk management expectations
  • Climate stress test (Biennial Exploratory Scenario): 2021, 2023 exercises
  • Board responsibilities: Oversight of climate risk management
  • Disclosure: TCFD-aligned disclosures mandatory from 2022

US Regulators

  • OCC Principles for Climate Risk Management (2023): Guidance for large banks
  • Fed Climate Risk Pilot (2023-2024): Scenario analysis for six largest banks
  • FDIC Climate Risk Principles: Supervisory expectations
  • SEC Climate Disclosure Rules (2024, stayed): Emissions and risk disclosure

Network for Greening the Financial System (NGFS)

  • Climate scenarios for stress testing (current policies, net zero 2050, delayed transition, etc.)
  • Guidance on climate risk management
  • Central bank collaboration on climate issues

Risk Management Framework

Governance and Strategy

  • Board oversight: climate risk expertise; regular reporting
  • Management accountability: designated executive responsible
  • Strategy integration: climate risks in strategic planning, capital allocation
  • Risk appetite: climate risk tolerance statements

Risk Identification and Assessment

  • Scenario analysis: NGFS scenarios; time horizons (short, medium, long-term)
  • Portfolio analysis: emissions intensity, transition risk exposure, physical risk mapping
  • Concentration risk: sectoral, geographic, technology concentrations
  • Materiality assessment: financial impacts of climate risks

Risk Measurement and Monitoring

  • Metrics: financed emissions, portfolio alignment, physical risk scores
  • Monitoring: ongoing review of climate risk exposures
  • Limits: risk limits for high-emission sectors, transition-exposed assets
  • Stress testing: scenario-based capital adequacy assessment

Risk Mitigation

  • Portfolio decarbonization targets
  • Client engagement: transition plans, emission reduction
  • Green finance: green bonds, sustainability-linked loans
  • Insurance: physical risk transfer

Scenario Analysis and Stress Testing

Scenario Types

  • Orderly transition: Early, gradual policy action; carbon price increases; limited physical risk
  • Disorderly transition: Delayed, sudden policy action; higher transition costs; asset price volatility
  • Hot house world: Limited policy action; high physical risk; limited transition risk

Implementation Steps

  1. Select scenarios (NGFS or jurisdiction-specific)
  2. Identify exposure to physical and transition risks
  3. Model financial impacts (PD, LGD, EAD, revenues, costs)
  4. Assess capital adequacy and strategic implications
  5. Document methodology, assumptions, limitations

Disclosure and Reporting

TCFD/ISSB Requirements

  • Governance: board and management oversight of climate risks
  • Strategy: climate risks and opportunities; scenario analysis; transition plan
  • Risk management: processes to identify, assess, manage climate risks
  • Metrics and targets: GHG emissions, climate targets, portfolio alignment

Key Metrics

  • Scope 1, 2, 3 GHG emissions (financed emissions for financial institutions)
  • Portfolio alignment metrics (warming scenario alignment, PCAF data)
  • Green asset ratios (EU; taxonomy-aligned assets)
  • Transition plan metrics (decarbonization targets, progress indicators)

Practical Implementation Steps

  1. Establish climate risk governance structure
  2. Identify material climate risks (physical and transition)
  3. Develop climate risk assessment methodology
  4. Integrate climate risk into ERM framework
  5. Implement climate risk data collection systems
  6. Conduct scenario analysis and stress testing
  7. Develop and disclose transition plan
  8. Monitor regulatory developments and expectations