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The Vienna Convention for the Protection of the Ozone Layer and its Montreal Protocol on Substances that Deplete the Ozone Layer are dedicated to the protection of the earths ozone layer. With 197 parties, they are the most widely ratified treaties in United Nations history, and have, to date, enabled reductions of over 97% of all global consumption of controlled ozone depleting substances (measured in ODP tonnes).

appauvrissement de la couche d'ozone, gestion saine de l’environnement, potentiel de destruction de l’ozone, production durable, substance chimique, utilisation durable
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