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BMJ 2001; 323 doi: https://doi.org/10.1136/bmj.323.7307.252/b (Published 04 August 2001) Cite this as: BMJ 2001;323:252

International meeting on ozone layer: 178 countries met in Montreal on 24-26 July to work on improving the 1987 Montreal protocol on substances that deplete the ozone layer. High on the agenda were the illegal trade of chlorofluorocarbons (CFCs) and the phasing out of hydrochlorofluorocarbons, CFC substitutes that still cause ozone damage, …

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