By Tom Burgis
By T. Zheng
By T. Kurihara
By D. Lei
By V. Briginshaw, Ramsay Burt
By Andrew S. Goudie (University of Oxford, UK)
By Bryson, Bill
By D.A. Fuchs
By Michael Hambrey (University of Wales, Aberystwyth), Jurg Alean
By J. C. Van Loon (University of Toronto), R. R. Barefoot (University of Toronto)
By David Goodstein (California Institute of Technology)
By Cally Oldershaw
By Bill Bryson
By Battey The Late., Dr M.H.
By R. Anderton, etc.
By P.M. Allen, British Geological Survey
By James R. Craig, David J. Vaughan
By Rebecca Boyle
By Dr Alain Gachet
By Brian J. Skinner, Stephen C. Porter
By Stanley Chernicoff, Ramesh Venkatakrishnan
By Dorothy Merritts, etc., Andrew deWet (Franklin Marshall College, USA), Kirsten Menking (Vassar College
By Harvey Blatt, Ernest G. Ehlers, Robert Tracy, Robert Tracy (Virginia Polytechnic Institute, USA)
By Donald Bruce, Ann Bruce
By Michael Stone, Zenobia Barlow
By D. Flinn, British Geological Survey
By United Nations Environment Programme
By Stott, Tim, etc.