Despite the fact that NASA tried to block him from accessing U.S. temperature data, persistent efforts by a climate change blogger forced the government to amend U.S. temperature data.
Because of the blogger’s efforts, NASA now recognizes 1934 as the hottest year in U.S. history, not 1998.
Steven McIntyre, a former mineral exploration executive and policy analyst for the governments of Ontario and Canada who blogs at ClimateAudit.org, wrote to NASA on August 4. He had found miscalculations in the NASA’s U.S. temperature recordings made after January 2000. “For Detroit Lakes, Minnesota,” McIntyre wrote “this introduced an error of 0.8 deg C.”
<>Now, the ten hottest years on record in the U.S., beginning with the hottest year, are: 1934, 1998, 1921, 2006, 1931, 1999, 1953, 1990, 1938 and 1939. Before the revision, that list read: 1998, 1934, 2006, 1921, 1931, 1999, 1953, 2001, 1990 and 1938. The re-ranking completely knocked 2001 off the top 10 list.
This U.S. temperature revision could cause problems for former Vice President Al Gore. Assisted by Hansen, Gore asserted in his global warming film “An Inconvenient Truth” that nine of the ten hottest years in U.S. history occurred since 1995.
http://townhall.com/Columnists/AmandaCarpenter/2007/08/17/nasa_blocked_climate_change_blogger_from_data