The NATO Advanced Research Workshop on "The Effects of the Mt. Pinatubo Erup tion on the Atmosphere and Climate" was held in Rome, September 26-30, 1994. In addition to NATO, the workshop was supported by Accademia Nazionale dei Lincei. The Organizing Committee was fortunate to enlist the participation of many of the experts in the field, and this book is an account of their contributions. The eruption of Mt. Pinatubo in June 1991 was readily recognized as one of the major eruptions of the century. In a sense it was the global experiment the atmospheric scientific community was waiting for to...