Part I : Social science contributions -- Nine fallacites of natural disaster : the case of the Sahel / Michael H. Glantz -- Disaster in the desert / Hal Sheets and Roger Morris -- A reassessment of international relief programs / Mohamed El-Khawas -- An international perspective on the African famines / Laurie Wiseberg -- Can the Sahel survive? Prospects for long-term planning and development / David Shear and Roy Stacy -- The desert-side economy of the Central Sudan / P.E. Lovejoy and S. Baier -- Innovation technology transfer and nomad pastoral societies / Randall Baker -- Part II : Natural science contributions -- Climatic changes and the future of the Sahel / Derek Winstanley -- Dust in the Sahel : cause of drought? / Norman H. MacLeod -- Agricultrual production systems in the Sahel / W. Gerald Matlock and E. Lendell Cockrum -- The management of desert grazing systems / Brien E. Norton -- Ecological management of arid grazing lands ecosystems / H.N. LeHouerou -- Health care systems in the Sahel : before and after the drought / Pascal James Imperato -- Weather and climate modification and the future of the Sahara / Michael H. Glantz and William Parton