Parameter: |
Fuel CH4 emission = 0.087 g / kg |
Reference: |
USEPA (2007). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2005. United States Environmental Protection Agency. EPA 430-R-07-002. Annex 3.2. Methodology for Estimating Emissions of CH4, N2O, and Indirect Greenhouse Gases from Mobile Combustion. April 15, 2007. Washington DC. http://www.epa.gov/climatechange/emissions/usgginv_archive.html |
Parameter: |
Fuel density = 3 kg / gal |
Reference: |
USEPA (2007). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2005. United States Environmental Protection Agency. EPA 430-R-07-002. Annex 6: Additional Information. April 15, 2007. Washington DC. http://www.epa.gov/climatechange/emissions/usgginv_archive.html |
Parameter: |
Interstate miles travelled = 431,942,393 mile |
Reference: |
RITA (2007). U.S. Department of Transportation's (DOT) Research and Innovative Technology Administration (RITA) Bureau of Transportation Statistics database. Database Name: Air Carrier Statistics (Form 41 Traffic)- All Carriers. Accessed online in October 2007, at: http://www.transtats.bts.gov/databases.asp?Mode_ID=1&Mode_Desc=Aviation&Subject_ID2=0 |
Parameter: |
Intrastate miles travelled = 105,297,652 mile |
Reference: |
RITA (2007). U.S. Department of Transportation's (DOT) Research and Innovative Technology Administration (RITA) Bureau of Transportation Statistics database. Database Name: Air Carrier Statistics (Form 41 Traffic)- All Carriers. Accessed online in October 2007, at: http://www.transtats.bts.gov/databases.asp?Mode_ID=1&Mode_Desc=Aviation&Subject_ID2=0 |
Parameter: |
Total domestic fuel use = 2,481,526,258 gal |
Reference: |
Murtishaw, S., De La Rue du Can, S,. Price, L., Masanet, E., and Simcich, M. (2005). CALEB: California Energy Balance Database, September 12, 2005. Lawrence Berkeley National Laboratory, Berkeley, CA. |
Constant: |
Global warming potential of CH4 = 21 |
Reference: |
IPCC (1996). Second Assessment Report. Climate Change 1995: WG I - The Science of Climate Change. Intergovernmental Panel on Climate Change; J.T. Houghton, L.G. Meira Filho, B.A. Callander, N. Harris, A. Kattenberg, and K. Maskell (eds.); Cambridge University Press. Cambridge, U.K. |