Jürgen Kesselmeier is a trained plant physiologist with expertise on atmosphere biosphere interactions focusing on biogenic trace gases. After a professorship at the University of Cologne from 1987 to 1988, he became a research group leader at the Max Planck Institute for Chemistry (MPIC) in Mainz and adjunct professor at the Botanical Institute at the University of Mainz. He retired in June 2017 but continues with activities as Senior scientist at the MPIC and the university. Since 2019 he is a Member of the Science Panel for the Amazon (SPA) under the UN Sustainable Development Solutions Network (SDSN). He was the launching and Chief Editor of the Journal Biogeosciences (2004-2017) and editor of the journal Atmospheric Chemistry and Physics (2002-2010). He acted as the German Project Coordinator of the ATTO Project from 2010 to 2017 and was a member of the corresponding Scientific Steering Committee.