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
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
Blog post
GHG Protocol Newsletter: October 2025
GHG Protocol Newsletter: October 2025
ANNOUNCEMENT: GHG Protocol and ISO Welcome COP30 Action Agenda to Harmonize Carbon Accounting
BELÉM, BRAZIL (11 November, 2025) – Greenhouse Gas Protocol (GHG Protocol) and the International Organization for Standa
Announcement