Check out this link to an analysis of the raw and homgenized data of one surface weather station. It takes less than 10 minutes to go through the whole thing and is, I think, accessible to non-statisticians.
I don't expect anyone to change their minds about global warming but, I hope that those who disagree with me might understand why I am not ready to concede this point.
WW
The Smoking Gun At Darwin Zero Watts Up With That?