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Handbook of The Vienna Convention for the Protection of the Ozone Layer
… recover by around the middle of the century. Scientists, working together under the Vienna Convention, are monitoring … � � � � � � � � � � � � � � � � � � � � 73 Committees and working groups�� � � � � � � � � � � � � � � � � � � � � � � … shall prepare for the joint meeting of the Bureau and the group of the Research Managers. The joint meeting shall take …