Guidebook on Preparing Airport Greenhouse Gas Emissions Inventories

This report provides a framework for identifying and quantifying specific components of airport contributions to greenhouse gas (GHG) emissions. This guidebook can be used by airport operators and others to prepare an airport-specific inventory of GHG emissions. It identifies calculation methods that can be applied consistently, improving comparability among airports and enhancing understanding of relative contributions of GHGs to local environments. The inventory methods presented focus on the six primary GHGs: carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons, and perfluorocarbons. As part of the methodology, the guidebook provides instructions on how to calculate emissions from specific sources and how to create carbon dioxide equivalencies.