Scientific Assessment of Ozone Depletion This Scientific Assessment was prepared by the world's leading experts in the atmospheric sciences, under the auspices of the World Meteorological Organization and the United Nations Environment Programme. Prepared as input to the Montreal Protocol on Substances that Deplete the Ozone Layer, the two-volume assessment focuses on: halocarbon, ozone and temperature changes; advances in understanding the processes involved; impacts of ozone changes; and predictions of future changes. Book Ordering Information:    Sales Number: E. 99.III.D.94    ISBN: 92-807-1722-7      1998 Vol.I&II    Pages: 700pp.     Price: $135.00 [Environment Main] [Subject Index] [Alphabetical Index] [UN Publications Policies] Copyright © 1997 United Nations