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ARTICLE

A New Carbon Accounting Horizon: ISO and GHG Protocol Set the Path to One Global Standard 

For too long, companies, investors, and regulators have struggled with fragmented rules for measuring and reporting greenhouse gas emissions. Now, that changes. The International Organization for Standardization (ISO) and the Greenhouse Gas Protocol (GHG Protocol), two of the world’s leading carbon accounting frameworks, have announced a strategic partnership to create one unified global standard.

This collaboration will harmonize existing standards and co-develop new guidance, including for product-level and value chain emissions. The goal is simple: one clear, consistent way to measure and report emissions worldwide. For businesses, that means less duplication, lower reporting burdens, and greater clarity for investors and policymakers. For the planet, it means a stronger push toward real, verifiable climate action.

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Impact Of Ocean Acidification

Due to the increased acidity of the ocean, the ocean chemistry experiences massive changes that adversely affect not just aquatic beings but also the human population.

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Why It Matters? 

The partnership between ISO and the GHG Protocol isn’t just about cleaning up overlapping guidance, it’s about rewriting the foundations of how the world measures progress on climate action. For years, the absence of a single global standard has created confusion: companies juggling multiple reporting rules, investors struggling to compare disclosures, and regulators working with inconsistent benchmarks.  A unified approach means clarity and comparability, so investors and policymakers can finally make apples-to-apples assessments. It means a lighter reporting burden for global companies, many of which currently navigate several frameworks at once. And most importantly, it means stronger climate action, because when standards are clear, credible, and widely adopted, they push organizations to focus on real emissions reductions rather than box-ticking or offset-heavy strategies.  This shift transforms carbon accounting from a fragmented obligation into a powerful catalyst for global decarbonization. 

Impact Of Ocean Acidification

Due to the increased acidity of the ocean, the ocean chemistry experiences massive changes that adversely affect not just aquatic beings but also the human population.

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How Cognitud Helps You Lead the Next Carbon Accounting Era 

As ISO and the GHG Protocol work to create one global carbon accounting standard, companies need to be proactive, not reactive. Cognitud helps organizations get ahead by aligning ESG strategies with emerging international requirements and building robust carbon accounting capabilities including the complex area of Scope 3 emissions.

We help companies improve the accuracy of their emissions data through smarter digital tools and stronger collaboration across their supply chains. At the same time, we work to make sustainability part of everyday operations, so climate commitments are credible and trusted by investors and auditors.

Beyond data and systems, we guide organizations in embedding sustainability into their culture and governance. With Cognitud, companies aren’t just prepared to meet tomorrow’s standards—they’re positioned to lead with confidence and credibility in the evolving world of carbon accountability.

How Cognitud Helps You Lead the Next Carbon Accounting Era 

Ready to turn climate
Ambition into Action?

Expert

Priyanka Mehta

Design structured sustainability pathways aligned with your industry landscape.

Frequently Asked Questions

Carbon accounting is the process of measuring, tracking, and reporting greenhouse gas (GHG) emissions generated by an organization, product, or value chain. It helps quantify the environmental impact of operations and supports strategies to reduce emissions.

Carbon accounting is crucial for understanding and managing emissions, setting science-based climate targets, ensuring regulatory compliance, and providing transparency for investors, customers, and stakeholders. It also helps organizations identify opportunities to reduce costs and environmental impact.

Carbon accounting involves: • Defining boundaries – determine which operations, facilities, and value chain activities to include. • Collecting data – gather energy consumption, fuel usage, waste, and other relevant inputs. • Calculating emissions – convert activity data into CO₂-equivalent emissions using recognized methodologies. • Reporting – present emissions by scope (Scope 1, 2, 3) according to frameworks like the GHG Protocol or ISO standards. • Verifying – ensure data accuracy through internal checks or third-party assurance.

Carbon accounting works by translating organizational activities into quantifiable GHG emissions. It tracks direct emissions (Scope 1), indirect emissions from purchased energy (Scope 2), and other indirect emissions along the value chain (Scope 3), creating a comprehensive picture of an organization’s carbon footprint.

GHG accounting refers specifically to measuring and reporting all greenhouse gas emissions, including CO₂, CH₄, N₂O, and others. Carbon accounting is often used more broadly or interchangeably but typically emphasizes CO₂ and its equivalents, focusing on climate impact and organizational footprint.