evidence: Nothing wrong with that. Except, all their changes point to one thing — lowering previously measured temperatures to show cooler weather in the past, and raising more recent temperatures to show warming in the recent present. [...] Far from legitimately "adjusting" anything, it appears they are cooking the data to show a politically correct trend toward global warming. Not by coincidence, that has been part and parcel of the government's underlying policies for the better part of two decades. What NOAA does aren't niggling little changes, either.