1 Melbourne School of Population and Global Health, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, VIC 3010 Australia. Electronic address: kdw@unimelb.edu.au.
2 School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, University of Melbourne, Melbourne, VIC, Australia.
3 Department of Forest Resource Management, Faculty of Forestry, University of British Columbia, Vancouver, BC, Canada.
4 Institute for Housing and Urban Research, Uppsala University, Uppsala, Sweden.