United States. General Accounting Office
Richard Gilbert
Peter M. Schwarz
Wayne C. Turner
Jen Green
Bhuvan Unhelkar
Rob Hopkins
George Monbiot
United States. Dept. of Energy. State Energy Conservation Programs Division.
Michael Reynolds
Jack M. Hollander
Kornelis Blok
Molly Bang
Morena J. Acosta
Unknown Author
Russell Fortmeyer
Ken Yeang
Huw Heywood