I beleive the answer is: T<span>erminate production of CFCs through finding substitutes.
This action is easier said than done because CFC based product is used by almost all people (they're contained in hairspray and refrigerants)
</span>National Oceanic & Atmospheric Administration (NOAA) stated that <span>hydrofluorocarbon (HFC) creates less environmental damage compared to CFC.</span>