You lost all credibility when you claimed chemistry is the same even if the environment is different.

So you think it suddenly turns into some different science because the environment changes? That we can't apply it anymore just because the initial state is different? Not how that works. The rules stay the same even if the input changes. We can take the atmospheric composition and replicate it in a lab to see how something would react in the atmosphere. Unless some parameter is missed that will be exactly what would happen in the atmosphere. There is only one step where the laws of science suddenly change and it's not with the location of chemical substances.