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Abstract

In April 1979 Jack Fishman arrived in Germany to begin his five-month collaboration with Wolfgang Seiler, the German scientist he had befriended during the latter’s stay in America. The two scientists shared an interest in atmospheric chemistry—specifically in answering the questions of quantity (How much is there?), origin (Where does it come from?), and destination (Where does it go?) of the various gases found in our atmosphere. Though both men had devoted their professional lives to pursuing the answers to those questions, their careers had taken two distinct directions. One scientist had written his dissertation on carbon monoxide, the other on tropospheric ozone.