I have done it...which is why I can say with perfect confidence that you can't explain how CFC's represent a greater threat to the ozone layer than the natural catalysts and reactants already there...none of your papers even mentions the fact that natural catalysts exist at far higher concentrations than CFC's and natural reactants exist at concentrations above 780,000ppm.
I told you several times you can't say what is happening with only your numbers. You must understand the elastic and inelastic cross sections. Maybe you don't understand. An elastic collision means nothing changes the chemistry of the molecules. An inelastic collision is what matters; not just the concentrations. You need both. You only supplied half.
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In other words, make it up!
He is making an appeal to complexity.....he knows that there is no rational, scientifically valid explanation for how CFC's at a concentration of 3 PARTS PER BILLION represent a greater threat to the ozone than N2, NO, O2 and naturally occurring chlorine, and bromine molecules that are present in the stratosphere at a concentration of greater than 780,000 PARTS PER MILLION...
He is just thrashing around hurling bullshit to the best of his ability hoping that something sticks... It won't..