He has been, for a number of years, a highly-cited researcher and is the author or co-author of over 250 scientific publications. From 2000 to 2008 he was the co-editor-in-chief of the Journal of Geophysical Research (Section D: Atmospheres). He has done research on air-sea exchange, atmospheric composition, aerosols, and pollutants, climate change, and biogeochemical cycling.