ISO and GHG Protocol Announce Single Unified Corporate Carbon Accounting Standard by 2027
esgtoday.comISO and the Greenhouse Gas Protocol have announced plans to merge their corporate carbon accounting standards into a single, co-branded global standard. The new standard will combine GHG Protocol's Scope 1, 2, 3, and AMI standards with ISO's 14064-1. A public consultation is planned for Q2 2027, with the final standard expected to follow. For companies that currently report under multiple frameworks, this consolidation aims to reduce duplication and provide consistent rules across markets. The organizations say the unified standard will simplify reporting and free up resources for actual emissions reduction. This is a significant step for carbon accounting, but the real test will be in adoption and enforcement once the standard is published.