Good point. Real scientists know the difference between a theory ( a guess ) and a properly demonstrated scientific fact.
Well, I got a minor in climatology from those that taught me to look at raw data to find real trends in longer time periods than 30 years.....not to take raw data and spin it up in a computer model to predict what the global climate....if there ever was such a thing....will do in 100 years.
Most importantly, they taught me that the only thing certain about the climate is.....change.