By Denis Frank Owen
By Carol J. Adams
By Veronica Ray
By Martine Schuwer, P. H. Collin
By Paul Giller
By Keith Kirby (Oxford University, UK), Charles Watkins (School of Geography, University of Nottingham
By J.H.C. Gash, etc., C.A. Nobre (Centro de Provisio de Temp e Estudos Climaticos, Brazil), J.M. Roberts (Institute of Hydrology, UK), R.L. Victoria (Centro de Energia Nuclear na Agricultura
By Joni Adamson (Arizona State University, USA.), Michael Davis
By J. Andrew Hubbell, John C. Ryan
By Peter Ungar
By Rob van Tulder (Erasmus University, The Netherlands), Rob Tilburg, Mara Francken, Andrea Rosa (Rotterdam School of Management, Erasmus University
By Low, Robert
By Michael R. Redclift, Graham Woodgate
By Tom Griffiths, Libby Robin
By Shane Doyle
By Geoffrey O'Connor
By Michael W Fox
By Cameron Dunn, Sue Warn
By J. Andrews
By Freya Mathews
By John Dryzek
By Fortey, Richard
By Professor J. R. McNeill
By United Nations Environment Programme
By Christian Parenti
By Roy A. Rappaport
By Jon Broome
By Patrick Barkham, Alastair Fothergill
By R. J. Scholes (University of the Witwatersrand, Johannesburg), B. H. Walker
By Timberlake, Lloyd