Eric O. Odada,^* Daniel O. Olago,^** Kassim Kulindwa,^*** Micheni Ntiba,^**** Shem Wandiga<sup>*****


*</sup>Eric O. Odada holds a PhD degree in geochemistry from Imperial College, London University. He is a Director of the Pan African START Secretariat (PASS) and a Professor of Geology at the University of Nairobi. His research interests include sedimentary processes in large lakes and oceans and the derivation of palaeoclimate records from lake sediments. His address: Pan-African START Secretariat (PASS), Department of Geology, University of Nairobi, P. O. Box 30197, Nairobi, Kenya. eodada@uonbi.ac.ke
^**Daniel O. Olago is Programme Officer of Pan African START Secretariat and senior lecturer in geology, University of Nairobi, specialising in quaternary science and geolimnology. His research interests include palaeoenvironment and palaeoclimate and their implications and relevance to the present and future; human impact on the environment; and the physical and chemical dynamics of lacustrine systems. His address: Pan-African START Secretariat (PASS), Department of Geology, University of Nairobi, P. O. Box 30197, Nairobi, Kenya. dolago@uonbi.ac.ke
^***Kassim Athumani Ally Kulindwa is a senior research fellow and lecturer in economics at the Economic Research Bureau, University of Dar es Salaam. His teaching and research interests include natural resources and environmental economics as related to sustainable development issues. He is currently a board member of the Centre for Environmental Economics and Policy in Africa (CEEPA) at the University of Pretoria. His address: Economic Research Bureau, University of Dar es Salaam Campus, P. O. Box 35096, Dar es Salaam, Tanzania. kulindwa@ud.co.tz
^****Micheni Ntiba studied at the University of Nairobi where he graduated with a BSc in botany and zoology in 1984, and a MSc in hydrobiology in 1987. He proceeded to the University of East Anglia, United Kingdom, to study for a PhD in fisheries science and graduated in 1990. He then taught marine and fisheries science in the Department of Zoology, University of Nairobi where he currently an associate professor of zoology. His research interests are in the changing states of aquatic ecosystems and the sustainability of the living natural resources in them. His address: Department of Zoology, University of Nairobi, P. O. Box 30197, Nairobi, Kenya. mntiba@uonbi.ac.ke
^*****Shem O. Wandiga is professor of chemistry at the Department of Chemistry, University of Nairobi. His research interests lie in studying sources and sinks of biogenic gases; persistent organochlorine pesticides in the tropics; trace metals concentration in various environmental media; and complexes of Group VB metals with sulfur and oxygen binding ligands. He is the author of several papers in these areas. He has a PhD from the Case Western Reserve University, USA. His address: Department of Chemistry, University of Nairobi, P. O. Box 30197, Nairobi, Kenya. sowandiga@uonbi.ac.ke