I have often mentioned before that the those impressive graphs of rising surface temperatures are faked, as if everyone knew, and everyone agreed, inadvertently imitating the mock consensus style of the warmists, without giving a citation. Here is the article that exposed the fakery for the US weather stations
The method is simple: The raw and adjusted data is available from the United States Historical Climatology Network Monthly Temperature and Precipitation Data though in not very readable form. When converted to readable form, the unadjusted data shows no global warming, the adjusted data looks like any doomster graph from GISS.
In his other articles, Michael Hammer analyzes the adjustments.