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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 11, NUMBER 7, JULY 1998

PROFESSIONAL PUBLICATIONS...
AIRCRAFT EMISSIONS

Item #d98jul99

Special Issue: "European Scientific Assessment of the Atmospheric Effects of Aircraft Emissions," G. Brasseur, G.T. Amanatidis, G. Angeletti, Guest Eds., Atmos. Environ., 32(13), 2327-2418, July 1998 (Elsevier Science Ltd.).

This report was initiated by the European Commission (DG XII/D, Environment Directorate) but is based on broad international scientific knowledge. Our understanding of tropospheric and stratospheric processes has improved substantially over the last years, even if large uncertainties remain. For example, much progress has been made in our understanding of the chemical mechanisms that determine the balance of ozone in the lower stratosphere, including the role of heterogeneous reactions. We also better understand the processes that control ozone in the upper troposphere, although the budget of ozone precursors is not well quantified and stratospheric-tropospheric exchange remains poorly understood.