| April, 1986 | A report by the World resources Institute and the International Institute for Environment and Development
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| April, 1987 | International Institute for Environment and Development and World Resources Institute
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| October, 1987 | Mark Kosmo
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| January, 1988 | WRI, IIED, UNEP
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| September, 1988 | Jim MacKenzie and Mohamed T. El-Ashry
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| March, 1990 | Francesca Lyman with Irving Mintzer, Kathleen Courrier, and Jim MacKenzie
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| July, 1990 | World Resources Institute, in collaboration with the United Nations Environment Programme and the United Nations ... |
| June, 1991 | Walter V. Reid and Mark C. Trexler
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| March, 1992 | World Resources Institute in collaboration with the United Nations Environment Programme and the United Nations ... |
| June, 1992 | James J. MacKenzie, Roger C. Dower and Donald D.T. Chen
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