Guidebook on Preparing Airport Greenhouse Gas Emissions Inventories (2009) / Chapter Skim
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Pages 12-18
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12 This chapter provides all of the protocol considerations to develop an airport GHG emissions inventory. Each section in this chapter serves to provide guidance on specific aspects of an inventory (e.g., source categorizations, geographic boundaries, etc.)
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2.2.2 Greenhouse Gas Inventory Boundaries During the last decade, the consideration of GHG inventories has evolved to contain a step that requires a clear identification of the boundaries of the inventory. USEPA and World Resources Institute (WRI)
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14 inventory (i.e., the airport division's inventory of a cityowned airport relative to other activities of a city)
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This level is consistent with GHG inventory protocols identified by IPCC, WRI, ICLEI, and TCR. As such, a Level 2 inventory is the recommended level for an airport inventory.
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16 any other pollutants (e.g., other halogenated compounds)
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Unlike the health effects associated with criteria gases, GHG effects are global in nature and, hence, it does not matter where those emissions occur -- ALL of the emissions must be accounted for. 17 As an option, the WRI scope categories could be specified to allow a better understanding of the direct and indirect nature of the emissions.
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For publicly owned and controlled GAV travel, emissions resulting from full round-trips should be captured. An example of a round-trip would be for a passenger who travels from his/her home to the airport, and upon completion of the air travel, returns home.
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