| November, 2004 | Fred Wellington, Amanda Sauer |
| October 28, 2004 | Andrew Aulisi, Jennifer Layke, Samantha Putt del Pino |
| September, 2004 | U.S. DOE, Energy Efficiency and Renewable Energy, Federal Energy Management Program; U.S. EPA Green Power ... |
| September, 2004 | Sharon Smith
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| July, 2004 | World Resources Institute
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| March, 2004 | Pankaj Bhatia, Janet Ranganathan, World Business Council for Sustainable Development (WBCSD)
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| January, 2004 | Jonathan Lash |
| November, 2003 | Marta Miranda, Philip Burris, Jessie Froy Bincang, Phil Shearman, Jose Oliver Briones, Antonio La Viña, Stephen ... |
| October, 2003 | Duncan Austin, Niki Rosinski, Amanda Sauer, Colin Le Duc. Published by World Resources Institute and WRI and ... |
| September, 2003 | Gilbert E. Metcalf, Tufts University and NBER |