First, I do not believe that any of it actually gets to the upper atmosphere in any quantity. Second, the "hole in the ozone" can be traced to other causes than R-12.
Ozone is a molecule of Oxygen. As is the oxygen we breathe. Most common molecule is O2. Ozone is O3. As such, the bond between the atoms is weaker in an O3 molecule. Ozone is by nature an unstable molecule that is formed by exposure to high levels of UV light or heavy electrical discharge. It is the constant exposure to UV light that creates and maintains the ozone layer in our upper atmosphere. There are parts of our atmosphere that are not exposed to direct sunlight for extended periods of time. Since ozone is continually decaying and being reformed, this process does not take place over the polar regions during their periods of darkness, and the ozone simply decays into O2. At some point, upper level winds will move this "hole" away from its point of origin. At this point, ozone will be reformed and the "hole" disappears. If this were not the case, the ozone layer would have decayed and been depleted many thousands of years ago.
So, who has a vested interest in eliminating R-12 to be replaced with yet another patented product from the same producer?? Now, who has a vested interest in replacing their (expiring patent) R-134a with yet another PATENTED product??
Better yet, if this new proposed refrigerant is flammable anyways....... Why not just use propane. It is basically cheap, plentiful, and has yet to be shown to be environmentally unfriendly. Hmmmmmmm??????? It also probably has better heat transfer properties.
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