| October, 1992 | Carol H. Weiss, Ed.
|
| March, 1992 | World Resources Institute in collaboration with the United Nations Environment Programme and the United Nations ... |
| October, 1991 | Dan Tunstall, Jessica T. Mathews
|
| July, 1990 | World Resources Institute, in collaboration with the United Nations Environment Programme and the United Nations ... |
| January, 1988 | WRI, IIED, UNEP
|
| April, 1987 | International Institute for Environment and Development and World Resources Institute
|
| April, 1986 | A report by the World resources Institute and the International Institute for Environment and Development
|