Final answer:
The initial Montreal Protocol of 1987 vowed to reduce CFC production by phasing out CFCs in most countries.
Step-by-step explanation:
The Montreal Protocol was an international agreement aimed at protecting the ozone layer. It controlled the production and emission of chemicals, including CFCs, which were known to damage the ozone layer.
The protocol required countries to phase out the production of CFCs and replace them with safer alternatives. By doing so, the protocol aimed to reduce CFC production and ultimately eliminate it to protect the ozone layer.