The anonymous source things always concerns me, no matter the subject, that said, I don't see anyone in the government or NASA coming out IF they are still employed or receiving a pension IF this is true.
“Having processed NASA GISS 250km T2m and 1200Km T2m global land anomaly data products I also processed Global Historical Climate Network (GHCN) daily mean temperature records from the 1,045 stations that have been continuously operative since 1900.
“Since these 1,045 stations form the backbone of the historical world meteorological network, and therefore NASA GISS products, we may expect results to be largely similar, though with the inflated variance within the GHCN-D data series (GISS anomalies are highly processed products). Not addressed in this study is the urban heat island effect which is known to contaminate the land-based record.
“Prior to 1970 there is an inexplicable divergence in that NASA GISS products show historic global land temperatures to have been cooler than those recorded by the 1,045 GHCN-D stations; this difference is most pronounced around 1930 when extreme heatwaves were experienced across the continental US and in other parts of the world (a fact recorded in newspapers of the day).
“The extremes of the 1930s/40s down to the cooler 1960s/70s prompted scientific discussion of a pending ice age.”
The retired top government scientist laments that he is old enough to remember the wild media scaremongering of the 1970’s global cooling.
He spoke of how the very same scientists and government bodies that were warning of an impending Ice Age in the seventies are the very same tax-zealous advocates hyping global warming today.
At this stage, the evidence may support skeptic claims that governments have an agenda to promote climate scaremongering.
Unlike the seventies, the only difference this time is the narrative is all about global warming, not the threat of an imminent ice age.