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01/01/1989 Montreal Protocol enters into force

The Montreal Protocol is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion. Due to its widespread adoption and implementation, it has been hailed as an example of exceptional international co-operation.


  • Essentials 

  • Montreal Protocol 

  • Terms and purposes 

  • History 

  • Multilateral Fund 

  • Parties