What's Happening?
The Greenhouse Gas Protocol and the International Organization for Standardization (ISO) have announced plans to create a single global standard for corporate greenhouse gas accounting. This initiative aims to harmonize their existing frameworks, ISO 14064-1
and the GHG Protocol's corporate accounting architecture, which includes Scope 1-3 and the emerging Actions & Market Instruments framework. The unified standard is expected to be published in the fourth quarter of 2028. This development comes as carbon markets are evolving into broader climate markets, encompassing a wider range of environmental attributes beyond traditional carbon credits. The goal is to reduce fragmentation in corporate climate reporting and provide greater consistency for companies navigating various accounting standards and climate frameworks. This move is part of a larger trend where the market is becoming more sophisticated, with companies increasingly managing portfolios of different environmental attributes, such as nature-based and technological carbon removals, high-integrity avoidance credits, and low-carbon materials.
Why It's Important?
This standardization is crucial for U.S. businesses and global corporations alike, as it will provide much-needed clarity in corporate climate procurement and reporting. Currently, companies face complexity due to overlapping accounting standards and reporting requirements, which can hinder effective climate strategies. A unified global rulebook will simplify the process of recognizing and reporting different climate interventions, making it easier for companies to demonstrate their commitment to emissions reductions. This consistency will also be vital as new environmental attribute certificates (EACs) for areas like low-carbon cement and sustainable aviation fuel (SAF) develop, ensuring these instruments are properly integrated into corporate inventories. For U.S. companies with international operations or those seeking to align with global best practices, this unified standard will streamline compliance and enhance the credibility of their climate claims, potentially influencing investment decisions and market access.
What's Next?
The GHG Protocol and ISO anticipate publishing the unified global standard by the fourth quarter of 2028. In the interim, companies will likely continue to navigate existing frameworks while preparing for the transition. This period will involve monitoring the development of the new standard and assessing how it will impact their current reporting practices and climate procurement strategies. Buyers will need to adapt to a market that is becoming more differentiated, requiring a strategic approach to selecting environmental instruments for specific climate objectives. The focus will shift from simply purchasing generic carbon credits to managing diverse portfolios of environmental attributes. This evolution will also necessitate increased collaboration among brands, suppliers, financial institutions, and policymakers to address the complexities and opportunities presented by this broader climate procurement ecosystem.
Beyond the Headlines
The move towards a single global accounting standard for corporate emissions has deeper implications for the integrity and effectiveness of climate action. By reducing fragmentation and increasing consistency, the standard could help mitigate greenwashing risks and foster greater trust in corporate climate claims. It also signals a maturation of the carbon market, moving beyond a focus on simple offsets to a more holistic approach that integrates various environmental attributes and value-chain interventions. This shift could drive innovation in climate solutions and encourage more robust investment in decarbonization efforts across industries. The emphasis on clear accounting rules and sophisticated market infrastructure suggests a future where climate finance is more efficiently channeled towards verified and impactful projects, ultimately contributing to more effective global efforts to combat climate change.











