Y2K Error in NASA Temperature Study

Jim Hansen had some sort of Y2K error in handling historical temperature records and now a corrected version of US average temperature shows that 1934 not 1998 was the warmest year this century. While the error is a small one, climate change advocates had seized on the erroneous data to support their hypothesis that the Earth is warming due to man's influence. It may still be but the case is weaker now. Kudos to NASA for correcting the error.

Here is the new and old list:

Top 10 GISS U.S. Temperature deviation (deg C) in New Order 8/7/2007

Year	Old	New
1934	1.23	1.25
1998	1.24	1.23
1921	1.12	1.15
2006	1.23	1.13
1931	1.08	1.08
1999	0.94	0.93
1953	0.91	0.90
1990	0.88	0.87
1938	0.85	0.86
1939	0.84	0.85

Here’s the old order of top 10 yearly temperatures.

Year	Old	New
1998	1.24	1.23
1934	1.23	1.25
2006	1.23	1.13
1921	1.12	1.15
1931	1.08	1.08
1999	0.94	0.93
1953	0.91	0.90
2001	0.90	0.76
1990	0.88	0.87
1938	0.85	0.86

h/t to Glenn.