It will need an international effort, like the Montreal Protocol for banning CFCs and HFCs. Legislation need to ban the end-use as well as the production of the

It will need an international effort, like the Montreal Protocol for banning CFCs and HFCs. Legislation need to ban the end-use as well as the production of these chemicals. I was involved with a study in the late 80s early 90s about the economic impact of the Montreal protocol in southern Africa and there was huge resistance against it from major car manufacturers (the biggest consumption were car air conditioners at the time, more that the use of CFC-11 in foam packaging). Dealers stock piled stocks and rogue manufactures continued producing for many years. It takes 5-10 years for alternatives to be developed and 20-30 years for wide adoption before they disappear all together.