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United Nations Environment Program, Environmental Effects of Ozone Depletion
| Date: | 1998 |
| Description: | The Montreal Protocol on Substances that Deplete the Ozone Layer requires periodic assessments of available scientific, environmental, technical and economic information. The assessments shall be made at least every four years. Assessments were made in 1989, 1991, 1994, and the present one, in 1998. The 1998 assessment focuses on new information since 1994, but it includes some background of prior information, so that it can be read without having the earlier reports at hand.
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| Type: | Report |
| URL: | http://sedac.ciesin.org/ozone/docs/UNEP98/UNEP98.html |
| Date entered: | 2002-07-15 |
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