New Global Standard for Scope-3 Emissions Reporting Published
GRI 102 grants equivalence to IFRS S2, enabling companies to streamline sustainability reporting across jurisdictions
AMSTERDAM, June 26, 2025— The Global Sustainability Standards Board (GSSB) today published GRI 102, a new climate standard that establishes a unified global framework for corporate greenhouse gas emissions disclosure, including comprehensive Scope-3 reporting requirements. The standard immediately grants equivalence to the IFRS S2 Climate-related Disclosures, allowing companies to prepare a single set of emissions data that satisfies both reporting frameworks.
The publication marks a pivotal development in sustainability reporting as regulatory mandates accelerate worldwide. More than 35 jurisdictions have already begun adopting ISSB standards, while the European Union’s Corporate Sustainability Reporting Directive (CSRD) requires Scope-3 disclosure for over 50,000 companies starting in 2025. Under the new GRI 102 framework, organizations can measure Scope-1, Scope-2, and Scope-3 emissions once using the Greenhouse Gas Protocol and report them simultaneously to meet both GRI and ISSB requirements, reducing compliance costs and reporting complexity.
“This will enable companies to prepare just one set of GHG emissions disclosures in accordance with IFRS S2, to meet the requirements in both standards,” said Sue Lloyd, Vice-Chair of the International Sustainability Standards Board (ISSB). “Beyond this, the two standards can be used together—assisting preparers in providing information to investors and a broader range of stakeholders about their climate-related impacts, risks and opportunities in an efficient manner.”
The GRI 102 standard specifically addresses the critical gap in value-chain emissions transparency. Scope-3 emissions—which encompass purchased goods and services, transportation, waste, and investments—typically represent over 70% of a company’s total carbon footprint according to CDP data. The standard requires organizations to disclose absolute emissions across all 15 Scope-3 categories defined by the GHG Protocol, with particular emphasis on Category 15 investment-related emissions for financial institutions.
“The fragmentation of sustainability reporting has been a systemic barrier to climate action,” said Eelco van der Enden, CEO of GRI. “With GRI 102, we are delivering what the market has demanded: a single, authoritative standard that eliminates duplicative reporting while strengthening the quality and comparability of Scope-3 disclosures. This is especially crucial for multinational corporations navigating overlapping requirements from California’s Climate Corporate Data Accountability Act, the EU CSRD, and emerging regulations across Asia-Pacific.”
Implementation requires organizations to measure emissions using the Greenhouse Gas Protocol: A Corporate Accounting and Reporting Standard (2004) and publish a GRI content index referencing the location of each disclosure per GRI 1: Foundation 2021. Companies reporting “in accordance with” or “with reference to” GRI Standards must provide this indexing to ensure traceability across integrated financial and sustainability reports.
Market analysts project the streamlined approach will reduce reporting costs by 30-40% for companies previously preparing separate disclosures. The standard takes effect immediately, with phased adoption aligned to jurisdictional mandates: EU companies must comply for 2025 reporting cycles, while California’s SB 253 requires Scope-3 disclosure by 2027. The ISSB and GRI will continue joint technical alignment under their Memorandum of Understanding, with planned guidance on sector-specific methodologies scheduled for release in Q4 2025.
About Global Reporting Initiative
GRI is an independent, international organization that helps businesses and governments worldwide understand and communicate their sustainability impacts. With the world’s most widely used standards for sustainability reporting, GRI’s multi-stakeholder approach ensures its standards represent diverse interests while promoting transparency, accountability, and sustainable development. The GSSB, GRI’s independent standard-setting body, is responsible for developing and maintaining the GRI Standards.
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