What Is a Climate Audit?
A climate audit is a structured review of an organization’s climate-related risks, emissions data, and environmental governance practices. Think of it as a health check for how well your company understands and manages its exposure to climate change.
Unlike a standard financial audit, a climate audit evaluates both your carbon footprint and the physical and transition risks that climate change poses to your operations. The scope typically covers greenhouse gas (GHG) emissions across Scopes 1, 2, and 3, alignment with disclosure frameworks, and the accuracy of reported climate data.
Organizations use climate audits to verify their sustainability claims, prepare for regulatory requirements, and identify gaps in their climate strategy before external stakeholders flag them.
Why Organizations Need a Climate Audit
Regulatory pressure is accelerating. The EU’s Corporate Sustainability Reporting Directive (CSRD) now requires climate disclosures from thousands of companies. The SEC’s climate disclosure rules and the International Sustainability Standards Board (ISSB) standards are pushing similar requirements globally.
Beyond compliance, investors increasingly demand verified climate data. A PwC survey found that 79% of investors consider ESG risks when making investment decisions. Without a climate audit, organizations risk reporting inaccurate data, missing material risks, or falling behind competitors who have their climate governance in order.
A climate audit is the foundation for credible CDP reporting and climate-related financial disclosure. Auditors and rating agencies look for consistency between what companies claim and what the underlying data supports.
What Is Climate-Related Risk in Audit?
Climate-related risk in the context of an audit refers to the financial and operational impacts that climate change can have on an organization’s reported figures. The International Auditing and Assurance Standards Board (IAASB) issued a practice alert highlighting how existing auditing standards already require consideration of climate risks.
These risks fall into two categories:
Physical risks include damage to assets from extreme weather events like floods, wildfires, and heat waves. They also cover chronic shifts like rising sea levels and changing precipitation patterns that erode asset values over time.
Transition risks arise from the shift to a low-carbon economy. Carbon pricing, regulatory changes, stranded assets, and shifting consumer preferences can all affect revenue projections, asset valuations, and going-concern assumptions.
For auditors, climate-related risks matter because they can affect inventory valuations, asset impairments, provision estimates, and the useful life of fixed assets. A thorough physical climate risk assessment at the facility level helps quantify these exposures.
How to Conduct a Climate Audit
Running a climate audit involves five core steps:
1. Define Scope and Boundaries
Determine which facilities, operations, and value chain segments the audit will cover. Decide whether you’re auditing Scope 1 (direct emissions), Scope 2 (purchased energy), or all three scopes including Scope 3 (supply chain).
2. Gather Emissions and Climate Data
Collect GHG emissions data from energy bills, fuel records, travel logs, and supplier surveys. For physical risk data, pull hazard assessments for each key location covering floods, heat stress, water stress, and other climate hazards.
3. Assess Against Standards
Compare your data and processes against the relevant framework. For climate disclosure, this is typically the TCFD framework or ISSB standards. For emissions accounting, use the GHG Protocol.
4. Identify Gaps and Material Risks
Flag areas where data is incomplete, methodologies are inconsistent, or risks have not been adequately disclosed. Prioritize gaps that affect material financial statements or regulatory compliance.
5. Document Findings and Recommendations
Compile an audit report with findings, risk ratings, and specific remediation steps. Include a timeline for addressing gaps and assign ownership for each action item.
Key Standards and Frameworks
Several frameworks guide what a climate audit should cover:
| Framework | Focus | When to Use |
|---|---|---|
| GHG Protocol | Emissions accounting (Scope 1, 2, 3) | Baseline for any climate audit |
| TCFD / ISSB | Climate risk disclosure (governance, strategy, risk management, metrics) | Listed companies and large private firms |
| CDP | Annual climate questionnaire and scoring | Companies responding to investor or customer CDP requests |
| ISO 14064 | GHG quantification and verification | Organizations seeking third-party verified emissions |
| CSRD (EU) | Mandatory sustainability reporting for EU companies | EU-based or EU-listed companies meeting size thresholds |
Most climate audits reference multiple frameworks. A typical approach uses the GHG Protocol for emissions data, TCFD for risk governance, and CDP as the reporting vehicle. The CDP 2026 Corporate Health Check underscores why auditing adaptation measures matters: companies identifying $1.47 trillion in physical risk have invested just $84.5 billion in adaptation.
Climate Audit Checklist
Use this checklist to track progress through your climate audit:
Emissions Data
- Scope 1 emissions calculated and documented
- Scope 2 emissions calculated (location-based and market-based)
- Scope 3 categories identified and estimated where material
- Base year established with recalculation policy
Risk Assessment
- Physical risk assessment completed for key facilities
- Transition risk scenarios evaluated
- Financial impact of climate risks quantified or estimated
Governance
- Board-level oversight of climate risks documented
- Climate responsibilities assigned to management
- Climate risk integrated into enterprise risk management
Disclosure Readiness
- TCFD-aligned disclosures drafted or updated
- CDP questionnaire responses reviewed for accuracy
- Data trails and methodologies documented for auditor review
Platforms like Continuuiti can accelerate the risk assessment portion of a climate audit by providing automated physical risk data across 12 hazards for any location, replacing weeks of manual analysis with results delivered in minutes.
Frequently Asked Questions
What is a climate audit?
A climate audit is a systematic review of an organization’s greenhouse gas emissions, climate risk exposure, and environmental governance practices. It verifies that reported climate data is accurate and that the organization’s climate strategy aligns with relevant standards.
What is climate-related risk in audit?
Climate-related risk in audit refers to financial and operational impacts from climate change that can affect reported figures. Physical risks (floods, heat waves, droughts) and transition risks (carbon pricing, regulation) can both influence asset valuations, provisions, and going-concern assumptions.
How often should organizations conduct a climate audit?
Most organizations conduct a climate audit annually, timed to align with their financial reporting cycle. Companies facing rapid regulatory changes or operating in high-risk sectors may benefit from semi-annual reviews of key risk indicators.
What is the difference between a climate audit and a carbon audit?
A carbon audit focuses narrowly on greenhouse gas emissions measurement and accounting. A climate audit is broader, covering emissions plus physical and transition risk assessment, governance structures, and disclosure readiness.
Who needs a climate audit?
Any organization reporting climate data to investors, regulators, or rating agencies benefits from a climate audit. Mandatory requirements now apply to companies under CSRD in the EU, and voluntary frameworks like TCFD and CDP cover thousands of companies globally.
