Well, I am certain that simulations (God they love their sims dont they?, easy science, no field work) for a mere 100 years of earths climate history compared to measured data with margins of error itself is nothing impressive to me.
Many models were made in the long ago past to explain movements of planets, sun, moon. Some worked pretty good too. But the bigger picture blew them out of the water.
The “simulations” of those days could not explain the grand picture at all with any accuracy.
Now we have come a long way since then.
But we cannot experiment on planetary levels with climate over vast time spans.
They are gazing into crystal balls constructed of equations and processors, and attempting to predict the future of something that I strongly suspect truly do not have a complete grasp of the massive complexity of.
We cannot experiment on planetary levels with climate over short periods of time. One need only look as far as the local weather forecast and how consistently inaccurate it is to see proof of this concept.
Add to this all the various weather stations that are set next to exhaust ports of air conditioning ducts, next to trash burning barrels, in areas near major airports where they are subjected jet blasts, tied to chimneys, and placed in asphalt parking lots, along with the complete absence of precipitation and it's effects on temperature in the models, and you have nothing more than fraud. I also read recently that many, if not most, of the weather reporting stations in the former Soviet Union were abandoned after the collapse and that loss of data has also not be included.
This "global warming" nonsense is like peeling back an onion. The deep you dig into the "facts" the more layers off corruption you find.....
They are not just “gazing at them”. They actively change “k” factors in the model to try to get them to fit what they think they should do. That is how these models work. There are so many factors that we cannot accurately measure, that they just assume a number, then try it. If it doesn’t give them what they want, they substitute another number. It is GIGO..Garbage In, Garbage Out.