Surface Stations
There's nothing like people going out and actually looking at the weather stations which tell us that global warming is happening, and explaining why the temperature measurements are utterly wrong.
Put a thermometer near a large, paved parking lot, why don't you? Then make public energy policy based on its measurements.
Use electronic thermometers and never calibrate them. That's good science!
Just skim the pages and you'll see what I'm talking about.