Prof. Dr. Hans Michaelis of the University of Cologne (Universität zu Köln) in Germany, was a member of the 'Enquete-Kommission zum Schutz der Erdatmosphäre des Deutschen Bundestages' (Commission of the German Parliament for the Protection of the Earth's Atmosphere)   and member of the 'Institut für Energiepolitik und Kernernergieentwicklung' (Institute for energy politics and nuclear enegery development) 
He was one of the speakers at the conference in Leipzig in November 1995 organized by the European Academy for Environmental Affairs and the Science and Environmental Policy Project (SEPP) which resulted in the Leipzig Declaration on Global Climate Change. During his speech he explained about his activities at the Commission of the German Parliament for the Protection of the Earth's Atmosphere. Unlike most other speakers of that conference in Leipzig, Michaelis didn't sign the 'Leipzig Declaration' or the Oregon Petition.
- Hans Michaelis, "Handbuch Kernenergie - Kompendium der Energiewirtschaft und Energiepolitik 1995," DTV, 1977, ISBN 3423041374