Diffusion means it is spread out or not concentrated. Still, you and your ilk are trying to say that the entire amout of CFCs leaked is concentrated in the upper atmosphere. Do you agree that CFCs are heavier than air? If so, would you not agree that they would be diffused mostly at or near ground level? I can direct you (In fact I think I alrady have) to a web site that refutes what your web site says.
Sorry for the hurricane-induced delay in replying, Sam. You've got a major conceptual error in the above paragraph. NOBODY is saying that the entire amount of CFCs leaked is concentrated in the upper atmosphere. Only a very small amount of CFC molecules reach the upper atmosphere (compared to the amount released)! But in the upper atmosphere the CFC molecules are broken down by energetic reactions (cosmic rays, free oxygen), which releases the chlorine and fluorine, which are highly reactive. Cl and F react with ozone, breaking it down. In the normal stratosphere, this has resulted in a slight (5%) ozone concentration reduction. But in the polar vortex, ozone breakdown reactions are catalyzed on polar ice cloud particles, resulting in a much larger decrease in CFC concentration.
Does your Web site refute that scenario? Or does it merely refute erroneous models?