Honorary Doctoral Degrees

1986:   Honorary Doctor of the York University, York, Canada

1992:   Honorary Doctor of the Université Catholique de Louvain, Belgium

1993:   Honorary Professor at the Johannes Gutenberg-University of Mainz

1994:   Honorary Doctor of the University of East Anglia, Norwich, U.K.

1996:   Honorary Doctor of the Aristotle University of Thessaloniki, Greece

1997:   Honorary Doctor of the University of San José, Costa Rica

1997:   Honorary Doctor of the Université de Liège, Belgium

1997:   Honorary Doctor of the Tel Aviv University, Israel

1997:   Honorary Doctor of the Oregon State University, Corvallis,USA

1997:   Honorary Doctor of the Université de Bourgogne, Dijon, France

1997:   Honorary Doctor of the University of Chile, Santiago, Chile

1998:   Honorary Doctor of the University of Athens, Greece

2001:   Honorary Doctor of the Democritus University of Thrace, Greece

2002:   Honorary Doctor of the Nova Gorica Polytechnic, Slovenia (since 2006 Nova Gorica University)

2002:   Honorary Doctor of the University of Hull, United Kingdom

2004:   Honorary Professor of the College of Environmental Sciences, Peking University, China

2005:   Honorary Doctor of the Université Joseph Fourier, Grenoble, France

2005:   Honorary Professor of the Tongji University, Shanghai, China

2007:   Honorary Doctor of the Environmental Engineering, Politecnico, Milan, Italy

2008:   Honorary Professor at the Seoul National University, Seoul South Korea

2010:   Honorary Doctor of the University of Venice, Italy

2013:   Honorary Doctor of the Maastricht University, Maastricht, The Netherlands