I lived !7 years in the Nevada desert, where daytime summer temps are well over the temps we are experiencing now in Illinois and elsewhere, and the only thing I saw melting from the heat were tourists.
Back in 1936, the year my mother was born, it was a long, hot summer with record high temps as well. I don't think anyone was screaming about global warming then. Many were just wishing they had electricty on the farm.
I do think the most recent ice age is finally over.