If I may,
I could tell you a little story.
A company in Sweden, called Electrolux, which makes refrigerators, was dealing with this very issue and worked with The Natural Step principles to solve it. They were challenged by pending legislation under which they were going to have to phase out CFCs, for obvious reasons. At that point, the only solution they had and knew was HCFCs, and they were on the verge of making a major corporate investment in that technology.