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EPA Center for Corporate Climate Leadership

GHG Emission Factors Hub

This document was designed to provide organizations with a regularly updated and easy-to-use set of default emission factors for organizational greenhouse gas reporting. The document includes updated emission factors collated from both EPA's Greenhouse Gas Reporting Program and the Center's technical guidance. The most recent version of the Emission Factors Hub (April 2021) includes updates to emission factors for upstream and downstream transportation, business travel, product transport and employee commuting, waste, and purchased electricity from EPA's Emissions & Generation Resource Integrated Database (eGRID). Guidance on the use of EPA’s Emission Factors Hub’s waste emission factors versus the Waste Reduction Model (WARM) is also available.

Download as an Excel file: GHG Emission Factors Hub(708 K, April 2021)

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