The GHG Protocol supplies the world's most widely used greenhouse gas accounting standards.

In 2014, 86% of Fortune 500 companies responding to the CDP used the GHG Protocol directly or indirectly through a program based on GHG Protocol. The popularity of GHG Protocol standards is due in part to the widespread stakeholder outreach and consultation that is facilitated by WRI and WBCSD during each standard development project.

The standards below are designed to provide a framework for businesses, governments, and other entities to measure and report their greenhouse gas emissions in ways that support their missions and goals.

Online learning opportunities exist for some standards; online classes are designed to help busy professionals get up-to-speed quickly and easily.
Standard name Description Best for Online learning product
Corporate Accounting and Reporting Standard The Corporate Standard provides instruction on how a company should perform a GHG inventory; it covers scopes 1 and 2 (see also the Scope 2 Guidance.) Businesses Corporate Standard Training Webinar
Corporate Value Chain (Scope 3) Standard This standard provides instruction on how a company should perform a scope 3 GHG inventory, which includes emissions from throughout a company's value chain. Businesses Corporate Value Chain (Scope 3) Standard Online Course
Product Life Cycle Standard The Product Life Cycle Standard instructs users on accounting for the emissions of a product's full life cycle; users can learn to focus efforts on the greatest GHG reduction opportunities in order to develop more sustainable products. Businesses Product Life Cycle Online Course
Project Protocol The Project Protocol is the most comprehensive, policy-neutral accounting tool for quantifying the greenhouse gas benefits of climate change mitigation projects. Businesses or Government
GHG Protocol for Cities (GPC) The GPC provides a robust framework for accounting and reporting city-wide greenhouse gas emissions. It seeks to help cities develop a comprehensive and robust greenhouse gas inventory in order to support climate action planning. Government Coming soon
Mitigation Goal Standard The Mitigation Goal Standard provides instructions on assessing progress toward national and subnational greenhouse gas reduction goals. The standard can help governments set emission-reduction targets, meet domestic and international emissions reporting obligations to groups like the UNFCCC, and ensure that efforts to reduce emissions are achieving their intended results. Government Mitigation Goal Standard Online Course
Policy and Action Standard The Policy and Action Standard provides a standardized approach for estimating the greenhouse gas effect of policies and actions. Government Policy and Action Standard Online Course