Joseph D’Aleo provides the details at WUWT (emphasis added):
[The National Climatic Data Center's] adjustments made the dust bowl period cooler, while post 1995 had no adjustments applied. This results in a temperature trend that is steeper because the past is cooler than the present. The only problem is that it isn’t what the data actually recorded then.
I think maybe we need to coin a new term for NOAA NCDC – ‘dust bowl deniers’. Yes it appears there is man made warming underway but the men are in Asheville, North Carolina at NOAA’s National Climatic Data Center.
The particular victim in this case was New York City, which suddenly had a cooler 1930s than any survivor of that decade would remember.
For those who are keeping track (admittedly not easy given the numbers), we have now reached forty-five examples of data manipulation, errors, and other shenanigans from global warming alarmists, and that’s just from what I’ve been able to blog on this subject since Climategate broke in November of 2009, just under three and a half years ago…and they just keep on coming.
Cross-posted to the right-wing liberal