1 London International Development Centre, London WC1H 0PD, UK; School of Oriental and African Studies, London, UK. Electronic address: Jeff.Waage@lidc.bloomsbury.ac.uk.
2 London International Development Centre, London WC1H 0PD, UK; Bartlett Development Planning Unit, University College London, London, UK.
3 Department of Civil, Environmental and Geomatic Engineering, University College London, London, UK.
4 Bartlett Development Planning Unit, University College London, London, UK.
5 Centre for Biodiversity and Environment Research, University College London, London, UK.
6 School of Public Policy, University College London, London, UK.
7 Department of Humanities and Social Sciences, Institute of Education, London, UK.
8 Department of Pathology and Pathogen Biology, Royal Veterinary College, London, UK.
9 Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK.
10 School of Oriental and African Studies, London, UK.