I think it is just normal for me temperature to shift drastically, and it has been doing it for a long time without any help from humans. I don't know if concrete is affecting climate, but I believe that it has definitely affected the temp readings they have used to "prove" that temps are climbing. My son in law looked into one of their studies years ago and found that many of the measurements they were using could be explained by the asphalt and concrete, and that particular study made no attempt to account for it.

Seems pretty obvious that a street corner where they measured temperature a century ago when it was grass and trees is going to be a lot hotter now when it's all concrete and asphalt.