"Overwhelming Evidence supports AGW but the oldest Thermometer Records Do Not!"
The oldest thermometer records over multiple centuries has NOT been adjusted for urban heat islands. It shows less than a degree of warming over centuries.
Hadcet data can be found at http://www.metoffice.gov.uk/hadobs/hadcet/graphs/index.html
Attached graph can be found at http://i49.tinypic.com/rc93fa.jpg