Global Atmospheric-Biospheric Chemistry; R.G. Prinn. Atmospheric Chemistry and Composition of Air over the North Atlantic Ocean; S.A. Penkett, et al. Marine Aerosol and Gas Exchange and Global Atmospheric Effects; B.J. Huebert, et al. Multiphase Atmospheric Chemistry: Implications for Climate; R.J Charlson, J. Lelieveld. Atmospheric Chemistry of the East-Asian Northwest Pacific Region; H. Akimoto, et al. Biomass Burning in the Global Environment: First Results from the IGAC/BIBEX Field Campaign STARE/TRACEA/SAFARI92; M.O. Andreae, et al. Biosphere-Atmosphere Exchange of Trace Gases in the Tropics: Evaluating the Effects of Land Use Changes; M. Keller, P.A. Matson. Trace Gas Emissions from Rice Fields; H.U. Neue, R.L. Sass. Polar Atmosphere and Snow Chemistry; L.A. Barrie, R.J. Delmas. Terrestrial Biosphere-Atmosphere Exchange in High Latitudes; W.S. Reeburgh, et al. Exchange of Trace Gases between the Terrestrial Biosphere and the Atmosphere in the Mid-latitudes; K.A. Smith, et al. 4 additional articles. Index.

This volume contains the invited papers and a transcript of the final panel discussion in the First Scientific Conference of the International Global Atmospheric Chemistry (lGAC) Project, held in Eilat, Israel from April 18-22, 1993. The conference was hosted by the Israeli Institute for Biological Research (IIBR) and was the 37th in the prestigious OHOLO Conference series in Israel. The conference was devoted to the subject of "Global Atmospheric-Biospheric Chemistry" and was a landmark event in this area. It provided the first comprehensive report of progress under IGAC toward improving our understanding of the chemical and biological processes that determine the changing composition of the earth's atmosphere. This work is an essential component of the comprehensive International Geosphere Biosphere Program (lGBP) devoted to measuring and understanding global changes in the past and present, and predicting the future evolution of our planet. I want to devote this brief foreword to thanking several people who worked especially hard to make the conference a success and who helped to produce this volume as a record of the event. Paul Crutzen, Amram Golombek, Pamela Matson and Henning Rodhe did sterling service on the conference organizing committee. Special thanks go to Amram Golombek and Dr. Cohen, the Director of IIBR, who hosted the event in Israel. Anne Slinn did an excellent job in producing the Abstract book and helping with administrative matters. Alex Pszenny helped capably to critically review the Abstracts.

This work is addressed to advanced undergraduate and graduate students in astronomy, geology, chemistry, meteorology, and the planetary sciences as well as to researchers with pertinent areas of specialization who desire an introduction to the literature across the broad interdisciplinary range of this important topic. Extensive references to the pre-spacecraft literature will be particularly useful to readers interested in the historical development of the field during this century.