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| | Aviation and the Global Atmosphere |
 | | Working Paper 28, Committee on Aviation Environmental Protection Working Group 3, December 515, 1995, Montreal, Canada, Figure 10.2 adapted from underlying document. |
 | | U.S. Department of Transportation and Federal Aviation Administration, 1991: Final Regulatory Impact Analysis, Final Regulatory Flexibility Determination, and Trade Impact Determination, Transition to an All Stage 3 Fleet Operating in the 49 Contiguous United States of America and the District of Columbia. |
 | | Office of Aviation Policy and Plans and Office of Environment and Energy, Federal Aviation Administration, Washington, DC, USA, 23 September 1991, 127 pp. |
| www.grida.no /climate/ipcc/aviation/156.htm (1607 words) |
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