The Greenhouse Gas Protocol Corporate Accounting and Reporting Standard is a the world’s most-widely used accounting standard to measure and manage greenhouse gas emissions.
The GHGP is generally regarded as being more descriptive than ISO 14064, with more guidance with examples often included.The GHGP also addresses voluntary greenhouse gas targets, reflecting its focus on “aspirational” emissions scenarios, compared to the “standardization” of ISO 14064.
The Corporate Accounting and Reporting Standard provides the accounting platform for virtually every corporate GHG reporting program in the world.
The origins of the GHGP date back to the late 1990s, when the World Resources Institute and the World Business Council for Sustainable Development published a report that urged action on addressing climate change that included the need for standardized measurement of GHG emissions.
The first edition of the GHGP was published in 2001 and has since been updated with additional guidance that clarifies how companies can measure emissions from electricity and other energy purchases, and account for emissions from throughout their value chains. The GHGP also offers a range of calculation tools for companies to calculate their greenhouse gas emissions and measure the benefits of climate change mitigation projects.