Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances?

The Montreal Protocol is an international treaty specifically designed to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances (ODS) like chlorofluorocarbons (CFCs). While the Kyoto Protocol is a common point of confusion, it focuses on reducing greenhouse gas emissions to combat global warming rather than atmospheric ozone depletion. This question tests the core concept of major international environmental conventions and their specific mandates for global ecological protection.