Data manipulation by global warming "scientists" seems to be quite necessary everywhere, if what you want to see is evidence that there is warming. This article illustrates a case in point. The money quote:

"Thus, the two oldest and most reliable raw thermometer records in the world are telling us there is not a shred of real world evidence to show any significant global warming. Rather, it is the homogenized or faked data created artificially by climatologists in their laboratories that is consistently being shown as the source of such 'warming.' "

www.climategate.com/czechgate-climate-scientists-dump-worlds-second-oldest-cold-climate-record