Aviation and the Environment: Aviation's Effects on the Global Atmosphere Are Potentially Significant and Expected to Grow

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the potential environmental effects of aviation emissions, focusing on what: (1) is currently known about aviation's contribution to global warming and how aviation emissions, both domestic and global, compare with emissions from other sources; and (2) options are available for reducing aviation emissions.