Robust Evidence NOAA Temperature Data Hopelessly Corrupted By Warming Bias, Manipulation

Dr. Thomas Karl recently retired as Director of the National Oceanic and Atmospheric Administration (NOAA).

In 1989, Karl’s stated position was that global temperatures cooled between 1921 and 1979.

Source: RealClimateScience

“Analysis of warming since 1881 shows most of the increase in global temperature happened before 1919 ‚Äì before the more recent sharp rise in the amount of carbon dioxide in the atmosphere, said Thomas Karl of the National Oceanic and Atmospheric Administration’s National Climatic Data Center in Asheville, N.C.   While global climate warmed overall since 1881, it actually cooled from 1921 to 1979, Karl said.”

Today, not only has the 1921-1979 cooling disappeared from NOAA’s official temperature record, it has been replaced by a +0.45¬∞C warming trend during that nearly 60-year period.

1. Early NOAA Graphs Confirm Strong Cooling Through The 1970s – Before It Was Removed

As recently as the early 1980s, it was still widely accepted in the scientific community (National Academy of Sciences, hundreds of scientific papers) that the Northern Hemisphere had undergone a dramatic warming of nearly 1°C from about 1900 to 1940, and then, after the 1940s, the trend reversed to severe cooling, fomenting the 1970s global cooling scare.

Agee, 1980

NOAA’s Karl had also supplied plenty of evidence to support the original (1989) position that a global cooling trend persisted through the late 1970s.  Graphs appeared in his papers with strong warming trends through the 1920s and 1930s and then cooling trends from the 1940s to the 1970s.   For example, the NOAA graph of U.S. annual temperatures showed the cooling trend from 1921-1979, and even indicated there had been no net warming in the U.S. in the 90 years between 1895 and 1985.

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Comments (4)

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    Great article! The Warmists want to “protect” their version of the data (corrupted) from Trump. Has anyone saved the original raw data from these weasels? Time for an public audit.

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    A top NOAA climate scientist states in 1989 that the earth cooled between 1921 and 1979 ? Yes but isn’t the real question … when did Exxon know ? The data fudgers at NOAA and IPCC (International Political Climate Cartel ) will get there day in court . They can answer for the thousands of fuel poverty deaths caused by their trickery .

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    Russell Johnson


    The original mission of NOAA and NASA has been corrupted by politicians and “scientists” pursuing the almighty dollar. The climate change movement is a scam; remember the debunked “Hockey Stick” plot of increasing temperature–yes it was thoroughly debunked but warmists still use it to convince the ignorant. A graph is easy to fake and NOAA does it with regularity! The best description of “climate change” is
    FAKE NEWS!!!!!!!!!!!!

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