A lot of people overlook the fact that temperature taking standards were not in place before the 1980s. Before that temperatures were taken outside windows, in parking lots and all sorts of places where the temperature was higher.

Glaciers all over the Earth are retreating. This reflects warming.

Many trees and other plants are under a lot of stress where the climate has become warmer. Areas of permafrost all over the globe are thawing.

You have to be careful what you figure out with computer models. Today we have much better weather reporting/recording that what was available in the past. When you adjust past records you can get all kinds of results not reflective of what is actually happening.