| May, 1998 | Janet Ranganathan |
| May, 1998 | A joint publication by the World Resources Institute, the United Nations Environment Programme, the United Nations ... |
| April, 1998 | Marta Miranda with Alberto Blanco-Uribe Q., Lionel Hernández, José Ochoa G., and Edgard Yerena
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| January, 1998 | Alexander Irwan
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| January, 1998 | Richard Matthew and George Shambaugh, Georgetown University
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| December, 1997 | World Resources Institute |
| December, 1997 | David Barkin, Universidad Autonoma Metropolitana, Mexico City
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| December, 1997 | Zou Ji, Renmin University, Beijing
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| November, 1997 | Duncan Austin
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| October, 1997 | Roger Dower, Daryl Ditz, Paul Faeth, Nels Johnson, Keith Kozloff, and James J. MacKenzie. Introduction by Walter ... |