The Montreal Protocol called for a reduction in CFC emissions worldwide.
Explanation:
The city Protocol on Substances that spend the layer (a protocol to the national capital Convention for the Protection of the gas layer) is a world written agreement designed to safeguard the layer by phasing out the assembly of various substances that are accountable for gas depletion. The city Protocol on Substances That spend the layer may be a landmark international agreement designed to safeguard the stratospheric layer. The written agreement was originally signed in 1987 and considerably amended in 1990 and 1992.
