1. Systems Research Institute of the Polish Academy of Sciences Warsaw Poland
2. International Institute for Applied Systems Analysis Laxenburg Austria
3. Integrated Research on Energy, Environment and Society, Faculty of Science and Engineering University of Groningen Groningen The Netherlands
4. Department of Physical Sciences, Earth and Environment University of Siena Siena Italy
5. Biology Department Towson University Towson Maryland USA
6. Department of Environmental Studies Masaryk University Brno Czech Republic