We set the standards to measure and manage emissions
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Companies and Organizations
Greenhouse Gas Protocol provides the world's most widely used greenhouse gas accounting standards for companies.
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Countries and Cities
Greenhouse Gas Protocol provides standards and tools that help countries and cities track progress toward climate goals.
In 2023, 97% of disclosing S&P 500 companies reported to CDP using GHG Protocol.
Standards & Guidance
GHG Protocol supplies the world's most widely used greenhouse gas accounting standards and guidance.
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Tools & Resources
Our tools enable companies to develop comprehensive and reliable inventories of their GHG emissions.
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E-Learning
We offer multiple online learning solutions on the world's most widely used GHG accounting standards.
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Latest
GHG Protocol and ISO Advance Global Harmonization at ISO Environmental Management International Plenary 2025
The ISO Environmental Management International Plenary 2025 marked a pivotal moment f
Frequently Asked Questions: Scope 2 and Electricity Sector Consequential Accounting Public Consultations
On October 20, 2025, GHG Protocol launched two public consultations: one focuses on updates to the Scope 2 Guidance (2015) which addresses inventory accounting, while the other seeks feedback on consequential accounting methods for estimating avoided emissions from electricity-sector actions, which will feed into work underway in the Actions and Market Instruments workstream.
Updates from the GHG Protocol Actions and Market Instruments Workstream
By developing a corporate GHG emissions inventory using GHG Protocol, companies identify the sources and magnitude of
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