Maximilian Posch holds a Ph.D. in Physics and a Masters degree in Mathematics from the Technical University of Vienna and worked from 1981-89 at the International Institute for Applied Systems Analysis (IIASA) in Laxenburg (Austria) on the integrated assessment of acidification in Europe (the RAINS model).
1990-1994 he worked at the Finnish Water and Environment Research Institute in Helsinki on the environmental impacts of acid deposition and agricultural practices.
Since 1995 he is senior researcher at the Coordination Center for Effects (CCE) at the Dutch National Institute for Public Health and the Environment (RIVM).