1. Institute of Physical Geography and Landscape Ecology, Gottfried Wilhelm Leibniz University Hannover, Hannover, Germany
2. Department of Sustainable Development, Environmental Science and Engineering, Finnish Environment Institute, Helsinki, Finland
3. Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
4. UCL Institute of Education, University College London, London, UK
5. Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden