In 1975, the National Academy Of Sciences produced this graph of Northern Hemisphere temperatures, which showed a strong cooling trend from the late 1930s until the late 1960s. It showed that the 1930s was by far the hottest decade.
Hansen’s recent graph of the Northern Hemisphere temperatures shows very little cooling during that same period.
The graph below overlays the National Academy of Sciences graph (blue) on Hansen’s, at the same scale – and shows that he has cooled pre-1940 temperatures by about 0.3C.
The GISS February anomaly was barely larger than Hansen’s data tampering. Global warming is indeed Mann-made and Hansen-made.
Hansen has done similar tampering with many other data sets, including this change to the US data set – which he made in the year 2000.

People believe that they are seeing thermometer data when they view NASA temperature graphs, but what they are actually seeing are carefully constructed political documents.
In 1999, Hansen wrote the text below. And then he suddenly changed his mind the next year.
Empirical evidence does not lend much support to the notion that climate is headed precipitately toward more extreme heat and drought. The drought of 1999 covered a smaller area than the 1988 drought, when the Mississippi almost dried up. And 1988 was a temporary inconvenience as compared with repeated droughts during the 1930s “Dust Bowl” that caused an exodus from the prairies, as chronicled in Steinbeck’s Grapes of Wrath.



On my tour of GHCN adjustments, I often get comments from warmists asking why I never show cooling adjustments, as according to them all the adjustments balance out.
As Steve shows, this is clearly a lie. Their trick is to do it bit by bit, so few people notice, and when they do, they say it is only a minor change.
I kept them happy last time as I actually found ONE cooling adj in S America.
As far as USHCN adjustments go, they openly state that they are adding 0.6F on to recent temperatures.
Most of the GHCN adjustments are cooling adjustments – cooling the past.
Mr. Goddard, I can’t thank you enough for your vigilence and perserverance unmasking the felonious activities underpinning the climate fraud. “Fast and Furious” is far more than a failed gun-running/banning scheme. Rather, it is the primary strategy of the march of radicals ushering in a new age of fraud.
It began in the media in the sixties with shamelessy skewed ‘news’ coverage of the Vietnam war. Later the media were joined by politicians, activists and lately, scientists, all on the take.
The overwhelming volume of lies, half-truths, distortions, fabrications and all manner of deception is frightening in its scale and scope. The blitzkreig of BS from every imaginable source is nearly impossible to keep up with and documentation simply falls on deaf ears.
On behalf of my children, my country and my species, thank you.
You are welcome!
That change in Hansen’s tone is truly strange. It can’t be based on data, and since that time “adjustments” in data have persisted in pushing the “data” into line with expectations. Real-world possibilities including medical events – a mild hemorage that struck a specific portion of the brain for instance – might be an explanation. From there the possibilities wander off into the really strange.