Peter A. Wilderer received in 1965 the degree of Doctor of Engineering (Dr.-Ing.) in sanitary engineering from the University of Karlsruhe, and in 1976, he qualified for professorship (habilitation) in field of bio-process engineering. He has been professor at the University of Karlsruhe, the Technical University of Hamburg-Harburg, and the Technical University of Munich (TUM) in Germany, and he served as visiting professor at the University of California at Davis, USA, the Montana State University, USA, and the University of Queensland, Australia. In 2003, he received from the hands of the Swedish King the Stockholm Water Prize. In 2007, the Technical University of Munich honoured him with the title “Professor emeritus of excellence”. In 2002, he founded the Institute of Advanced Studies on Sustainability of the European Academy of Sciences and Arts, today known as International Expert Group for the Preservation of the Earth System (IESP), an open network of scientists and researchers, entrepreneurs, politicians and members of governmental and non-governmental institutions.