1. Climate System Analysis Group, Department of Environmental and Geographical Science, University of Cape Town, Rondebosch, South Africa
2. School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, UK
3. Institute for Rural Development, University of Venda, Thohoyandou, South Africa
4. Risk and Vulnerability Science Centre, Faculty of Science and Agriculture, University of Fort Hare, Alice, South Africa