Stu. you are obviously another one lacking comprehension skills. It is blindingly obvious that the science is imprecise mainly because the modelling is not exact and data sets do not always lend themselves to extrapolation.(among many other reasons)If the science was settled so would be the arguments.
I presume your qualifications were not in logic.
Perhaps I should spell out a little more clearly what I said just for your benefit.
Rapid climate change in the past by some interpretations has been seen to generate rapid change on a decadal basis, some argue on an even shorter seasonal timespan.
I would suggest you read some papers on the subject and ask for help if you cannot understand them.