My 1st husband and I prowled Chaco and other ruins-he was from NM, and both of us were fascinated with the past. There are ruins a bit like Chaco in northern Mexico-it is plain to see that the climate was getting drier from the irrigation trenches with flat rocks on top to slow evaporation, the structures with wells inside that appear to be just for that, the riverbeds that have been dry for centuries, evidence of raids with buildings set on fire and people massacred in fields and houses, their granaries emptied, etc.
Anyone idiotic enough to buy into the manmade climate change BS just needs to visit some of those pueblo sites-on both sides of the border-to see how the climate has always changed over a large area long before there were any coal plants or SUVs-it is just how this part of the universe works...
Yup, climate change is 100 percent natural 100 percent of the time.