Sustainability Reporting
Sustainability reporting is the disclosure of an organization's environmental and social performance to stakeholders, including regulators, investors, customers, and employees. It covers GHG emissions, energy, water, waste, and social metrics, structured according to frameworks like CSRD/ESRS, CDP, GRI, and ISSB.
Sustainability reporting has shifted from voluntary marketing documents to regulated, audited disclosures. The EU's CSRD requires assured reporting under ESRS. California's SB 253 and SB 261 mandate emissions and climate risk disclosure for large companies doing business in the state. CDP responses feed customer and investor scorecards. Each framework has its own structure, but they draw on the same underlying data.
That shared data foundation is the practical challenge. A company reporting to CSRD, CDP, and a dozen customer questionnaires shouldn't rebuild its emissions inventory for each one. The mature approach is to maintain one evidence-linked inventory and map it to each framework's requirements, so every disclosed figure traces back to the same source documents and calculations.
Assurance raises the bar further. Under CSRD, sustainability disclosures require third-party assurance, which means auditors need to verify data lineage the same way they verify financial statements. Reporting built on spreadsheets and email threads struggles here. Reporting built on a platform with locked reports, factor documentation, and full audit trails does not.
Frequently asked questions
What is sustainability reporting? +
Is sustainability reporting mandatory? +
What is the difference between sustainability reporting and ESG reporting? +
The terms overlap heavily and are often used interchangeably. ESG reporting emphasizes the investor lens across environmental, social, and governance dimensions. Sustainability reporting is the broader practice of disclosing environmental and social performance to all stakeholders.
Related terms
ESG Reporting
ESG reporting is the disclosure of an organization's performance across environmental (E), social (S), and governance (G) dimensions. It encompasses GHG emissions, water and waste management, labor practices, diversity, board structure, ethics, and risk management — providing stakeholders with a holistic view of sustainability performance.
CSRD (Corporate Sustainability Reporting Directive)
The Corporate Sustainability Reporting Directive (CSRD) is the European Union's mandatory sustainability reporting law. It requires companies operating in the EU above certain thresholds to disclose environmental, social, and governance (ESG) information according to the European Sustainability Reporting Standards (ESRS), with third-party assurance.
CDP (formerly Carbon Disclosure Project)
CDP is a global non-profit organization that operates the world's largest environmental disclosure system. It collects self-reported climate, water, and forest data from thousands of companies, cities, and subnational governments on behalf of investors and purchasers, scoring disclosures from A (leadership) to D– (minimal).
California SB 253 (Climate Corporate Data Accountability Act)
SB 253 is a California law requiring companies doing business in the state with annual revenues exceeding $1 billion to report Scope 1, 2, and 3 greenhouse gas emissions annually, beginning with Scope 1 and 2 for reporting year 2026 and Scope 3 for reporting year 2027.
Assurance and Verification
Assurance (or verification) is an independent third-party assessment of an organization's GHG emissions data and reporting processes. Limited assurance provides moderate confidence that the data is free of material misstatement; reasonable assurance provides a higher level of confidence similar to a financial audit.