By Organization for Economic Co-operation and Development
By Donnellan, Craig
By Bob Cavnar
By F. G. Bell
By Mark Lynas, Lynas, Mark
By C.H. Walker, R.M. Sibly, D.B. Peakall, Steve P. Hopkin
By Viktor Haynes, Marko Bojcun
By George W. Cox
By David R. Patrick
By Air & Waste Management Association
By Sarah Metcalfe
By Sue Rabbitt Roff
By Mark Maslin, Maslin, Mark