"Air pollution." . . "Aircraft." . . "Atmospheric chemistry." . . "Geophysics." . . "Exhaust gases." . . "DEPARTMENT OF TRANSPORTATION WASHINGTON D C SYSTEMS DEVELOPMENT AND TECHNOLOGY." . . "Air Pollution and Control." . . . . "Atmospheric Physics." . . . . . "Report of findings, the effects of stratospheric pollution by aircraft"@en . . . . . . . . . . . . "Report of findings : the effects of stratospheric pollution by aircraft: final report"@en . . . "Report of findings : the effects of stratospheric pollution by aircraft, final report"@en . . "Report of Findings. The Effects of Stratospheric Pollution by Aircraft"@en . . . . . . . . . . . . . . . . . . . . . "The report assesses the impact of climatic changes which may occur from operation of aircraft in the stratosphere. The effects considered involve the geophysics of the stratosphere and troposphere, the propulsion effulents, the impacts of climatic change on the biosphere, and the economic and social measures of biological climatic change. Included and discussed are remedial measures by which adverse environmental effects may be avoided."@en . "Climate." . . "Troposphere." . . "United States. Department of Transportation. Climatic Impact Assessment Program." . . "Supersonic transport aircraft." . . "Ultraviolet radiation." . . "Stratosphere." . .