From The New Statesman:
"Our local high school participated in a government sponsored science program called "GLOBE". They faithfully recorded air temperatures (high/low/noon) for 12 years, even during vacations and summer breaks. No matter how the numbers crunched- no evidence for rising temperatures. Curious, we tapped into the data for all the other school's data participating- no evidence. We chalked it up to the fact that data since 1994 isn't a good enough time period ( but it feels like it when your doing the work)."