00585nam a2200133Ia 4500 17.02.01 T971 Twenty questions and answers about the ozone layer World Meteorological Organization GenevaCH 2011March 68 p. This publication is a component of the 2010 report of the Montreal Protocol Scientific Assessment Panel, Scientific Assessment of Ozone Depletion: 2010. The answers are based on the information presented in the Assessment report in June 2010. 3/14/19 EVELYND OZONE M T971 37980 37980 0 0 0 0 CRCM CRCM 2023-05-08 0 17.02.01 T971 0000000031994 2023-05-08 00:00:00 2023-05-08 M