− Intergovernmental Panel on Climate Change, Fourth Assessment Report (AR4) , Climate Change 2007: Synthesis Report, 

http://www.ipcc.ch/publications_and_data/publications_ipcc_fourth_assessment_report_sy nthesis_report.htm. 

− Lourdes Q. Maurice and David S. Lee, Chapter 5: Aviation Impacts on Climate, Final Report of the International Civil Aviation Organization (lCAO) Committee on Aviation and Environmental Protection (CAEP) Workshop , October 29$^{th }$- November 2$^{nd }$2007, Montreal; 

http://www.faa.gov/about/office_org/headquarters_offices/apl/research/science_integrated_ modeling/media/CAEP%20Impacts%20Report.pdf. 

− Nathan Brown, et. al., The US Strategy for Tackling Aviation Climate Impacts , 2010, 27 th International Congress of the Aeronautical Sciences at http://www.icas- proceedings.net/ICAS2010/PAPERS/690.PDF 

− National Aeronautics and Space Administration (NASA) at http://www.nasa.gov/. 

− National Climatic Data Center 1981-2010 Climate Normals, 

http://www.ncdc.noaa.gov/data-access/land-based-station-data/land-based-datasets/climate- normals/1981-2010-normals-data. 

− National Oceanic and Atmospheric Administration (NOAA) at http://www.noaa.gov/. 

− Santoni et al., Environmental Science & Technology, Aircraft Emissions of Methane and Nitrous Oxide during the Alternative Aviation Fuel Experiment , July 5, 2011, Volume 45, pp 7075-7082. 

− South Coast Air Quality Management District, Off-Road Mobile Emission Factors , 

http://www.aqmd.gov/ceqa/handbook/offroad/offroad.html. 

− Title 23 CFR Part 771 – Environmental Impact and Related Procedures, Effective: April 23, 2009, http://www.fta.dot.gov/documents/NEPA_reg_clean.pdf. 

− Title 40 CFR Part 50 - National Primary and Secondary Ambient Air Quality Standards, 

http://www.ecfr.gov/cgi-bin/text- idx?c=ecfr&tpl=/ecfrbrowse/Title40/40cfr50_main_02.tpl. 

− Title 40 CFR Part 51, Revision to the Guideline on Air Quality Models: Adoption of a Preferred General Purpose (Flat and Complex Terrain) Dispersion Model and Other Revisions ; Final Rule, December 9, 2005, 

http://www.epa.gov/scram001/guidance/guide/appw_05.pdf. 

− Title 40 CFR Part 93, Subpart A - Conformity to State or Federal Implementation Plans of Transportation Plans, Programs, and Projects Developed, Funded or Approved Under Title 23 U.S.C. or the Federal Transit Laws, 

http://www.epa.gov/air/genconform/documents/20100324rule.pdf. 

− Transportation Research Board, ACRP Report 11, Guidebook on Preparing Airport Greenhouse Gas Emissions Inventories , 2009, 

http://onlinepubs.trb.org/onlinepubs/acrp/acrp_rpt_011.pdf. 

