I understand climate goes thru cycles and patterns that change constantly. Taking 75 years of reading and saying climate change is the same as taking readings from 1 second out of a entire decade. Climate always changing. Up and down. Undersea volcanoes sun spots ocean salinity all contribute. 75 years out of 5 billion come on. Plus the artificial spiking of Temps with changing how readings are taken scews things as well. Oh and the heating and cooling of core the Earth generates it own heat that radiates out from core. I am sure that fluctuates as well.