It's totally possible that I misread your post...but you did lead off by mentioning "deniers" a couple of times in your post...I think that is why I thought you were skewering "deniers". At any rate, I welcome an earnest conversation on this subject, I certainly do not have all the answers and FWIW, I think there are a number of people who think they know more about this than they do and IMO they harm the conversation with their attacking and/or condescending replies...even up to declaring that "deniers" should be jailed.
If I misunderstood you, please accept my apology. I too think there is quite a bit of difference between someone that is skeptical of the dire predictions, etc, made by some and someone that truly denies that there is any change or steadfastly refuses to consider various potential causes of the changes that we can observe.