Everything can be wrong. Even theory of gravitation. That’s besides the point.
Except nothing.
> hard scientific facts that have been proven experimentally
Science isn't in the business of proving things. Science develops explanatory models that account for known evidence. Saying that science proves anything is super wrong and leads to all kinds of problems.
I want to emphasize my point again - we have 2 arguments. Argument A and argument B. A is presenting scientific evidence, in your corrected terms - presenting a model of climate change. Argument B is anecdotal evidence. The fact that they are both argued on the same stage gives the audience (who may not know anything about A or B) a false assurance that both A and B are arguable and therefore, they are on the stage. It is fine for casual conversations, I am speaking about large debates that we still fucking have about whether Earth is flat. It is equivalent of "Trolling" and should not be entertained.