Martin WilliamsMartin Williams is Emeritus Professor at the University of Adelaide, Australia. His particular contribution is the reconstruction of prehistoric environments, ranging from the habitats occupied by early hominids in the Afar Rift of Ethiopia to the Nelithic occupation in the Sahara and the Nile valley to the late Pleistocene wetlands in the arid Flinders Ranges of South Australia, using evidence from a wide variety of disciplines. He is a recipient of the Cuthbert Peek Medal from the Royal Geographical Society, the Sir Joseph Verco Medal from the Royal Society of South Australia, the Distinguished Geomorphologist Medal from the Australia and New Zealand Geomorphology Group, and the Farouk El Baz Award for Desert Research from the Geological Society of America. He is the author of more than two hundred research papers (twelve in Nature) and has edited or authored twelve books, including Landform Evolution in Australasia (with J. L. Davies, 1978), The Sahara and the Nile (with Hugues Faure, 1980), and Quaternary Environments (with David Dunkerley, Patrick De Deckker, Peter Kershaw and John Chappell; 1993, 1998). Read More Read Less