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… layout and formatting: Andrea Wöhr, Annett Frey Freiburg in Breisgau, Germany Foreword The Montreal Protocol on … from skin cancer and cataracts each year. The global economy will save US$2 trillion by 2050. Global efforts to … � � � � � � 780 Declaration by countries with economies in transition (1993)�� � � � � � � � � � � � � � � � � � � � � � …