NASA has now silently released corrected figures, and the changes are truly astounding. The warmest year on record is now 1934. 1998 (long trumpeted by the media as record-breaking) moves to second place. 1921 takes third. In fact, 5 of the 10 warmest years on record now all occur before World War II.
I can't vouch for the accuracy, veracity, or track record of Dailytech.com, from which the quote above was taken. But they have a link to the NASA information. If someone can show me that this information is demonstrably false, I'll obviously post an update with a retraction.
Update, 8/11/07: You knew Kerplunk would have something to say about this.