1. Stratospheric sink for chlorofluoromethanes: chlorine atom-catalysed destruction of ozone
2. There's safety in numbers
3. Executive Summary of the Scientific Assessment of Ozone Depletion, 1991.
4. Programme for Alternative Fluorocarbon Toxicity Testing, Report of PAFT-V: HFC-32, September 1992.
5. United Nations Environmental Programme, Report of the Ad Hoc Technical Advisory Committee on ODS Destruction Technologies, May 1992.