| Stefan Jansson | (Prof, University of Umeå, Sweden) |
| Markku Kulmala | (Prof, University of Helsinki, Finland) |
| Rainer Matyssek | (Prof , Technische Universität München, Germany) |
| Josep Peñuelas | (Prof, Universidad Autonoma de Barcelona, Spain) |
| Corné Pieterse | (Prof, Utrecht University, The Netherlands) |