“Massively Altered” …German Professor Examines NASA GISS Temperature Datasets

UPDATE 2: Tremendous interest in Ewert’s findings: shared or liked 2400 times up to now. I’ve decided to take the day off from blogging and let this one run another day.

UPDATE 1: Also read here.

Veteran journalist Günter Ederer* writes a piece reporting that massive alterations have been found in the NASA GISS temperature data series, citing a comprehensive analysis conducted by a leading German scientist. These results are now available to the public.


Professor Dr. Friedrich Karl Ewert. Source: University of Paderborn

Ederer reports not long ago retired geologist and data computation expert Professor Dr. Friedrich Karl Ewert began looking at the data behind the global warming claims, and especially the datasets of NASA’s Goddard Institute of Space Studies (GISS).

Ewert painstakingly examined and tabulated the reams of archived data from 1153 stations that go back to 1881 – which NASA has publicly available – data that the UN IPCC uses to base its conclusion that man is heating the Earth’s atmosphere through the burning of fossil fuels. According to Ederer, what Professor Ewert found is “unbelievable”:

From the publicly available data, Ewert made an unbelievable discovery: Between the years 2010 and 2012 the data measured since 1881 were altered so that they showed a significant warming, especially after 1950. […] A comparison of the data from 2010 with the data of 2012 shows that NASA-GISS had altered its own datasets so that especially after WWII a clear warming appears – although it never existed.”

Ederer writes that Ewert particularly found alterations at stations in the Arctic. Professor Ewert randomly selected 120 stations from all over the world and compared the 2010 archived data to the 2012 data and found that they had been tampered to produce warming.

The old data showed regular cycles of warming and cooling over the period, even as atmospheric CO2 concentration rose from 0.03% to 0.04%. According to the original NASA datasets, Ederer writes, the mean global temperature cooled from 13.8°C in 1881 to 12.9°C in 1895. Then it rose to 14.3°C by 1905 and fell back under 12.9°C by 1920, rose to 13.9°C by 1930, fell to 13° by 1975 before rising to 14°C by 2000. By 2010 the temperature fell back to 13.2°C.

But then came the “massive” altering of data, which also altered the entire overall trend for the period. According to journalist Ederer, Ewert uncovered 10 different methods NASA used to alter the data. The 6 most often used methods were:

• Reducing the annual mean in the early phase.
• Reducing the high values in the first warming phase.
• Increasing individual values during the second warming phase.
• Suppression of the second cooling phase starting in 1995.
• Shortening the early decades of the datasets.
• With the long-term datasets, even the first century was shortened.

The methods were employed for stations such as Darwin, Australia and Palma de Mallorca, for example, where cooling trends were suddenly transformed into warming.

Ewert then discovered that NASA having altered the datasets once in March 2012 was not enough. Alterations were made again in August 2012, and yet again in December 2012. For Palma de Majorca: “Now because of the new datasets it has gotten even warmer. Now they show a warming of +0.01202°C per year.”

Using earlier NASA data, globe is in fact cooling

The veteran German journalist Ederer writes that the media reports of ongoing global warming are in fact not based on reality at all, but rather on “the constantly altered temperatures of the earlier decades.” Ederer adds:

Thus the issue of man-made global warming has taken on a whole new meaning: Yes, it is always man-made if the data are adjusted to fit the theory. The meticulous work by Ewert has predecessors, and fits a series of scandals and contradictions that are simply being ignored by the political supporters of man-made climate change.”

Ederer also brings up the analysis by American meteorologists Joseph D’Aleo and Anthony Watts who examined 6000 NASA measurement stations and found an abundance of measurement irregularities stemming in large part from serious siting issues. According to Ederer the findings by Professor Ewert are in close agreement with those of Watts and D’Aleo.

Ederer writes of the overall findings by Professor Ewert:

Using the NASA data from 2010 the surface temperature globally from 1940 until today has fallen by 1.110°C, and since 2000 it has fallen 0.4223°C […]. The cooling has hit every continent except for Australia, which warmed by 0.6339°C since 2000. The figures for Europe: From 1940 to 2010, using the data from 2010, there was a cooling of 0.5465°C and a cooling of 0.3739°C since 2000.”

Ederer summarizes that in view of the magnitude of the scandal, one would think that there would be in investigation. Yet he does not believe this will be the case because the global warming has turned into a trillion-dollar industry and that that too much is tied to it.

All datasets are available to the public at any time. The studies by Prof. Ewert may be requested by e-mail: ewert.fk@t-online.de.

*Günter Ederer is a former journalist for ARD and ZDF German Television and has won numerous awards.


192 responses to ““Massively Altered” …German Professor Examines NASA GISS Temperature Datasets”

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  2. Eli Rabett

    First, the station data are not NASA’s but NOAAs, taken from the Global Historical Climatology Network (GHCN) with some additional adjustments for such things as urban heat island issues.

    Second, NOAA issued V3 of the GHCN effective May 2011. http://www.ncdc.noaa.gov/ghcnm/v3.php

    Third, NASA GISS updated to v3 of the GHCN from v2 of GHCN in December 2011 and v3.2 in September 2011 as shown on the update page

    Perhaps Prof. Dr. Ewert might take a look at the dates of these updates and his discoveries.

  3. Kevin O'Neill

    Stop for a second and *think*! Which is more likely, that a man who is unfamiliar with the science compares the two *wrong* datasets with each other – or that all the climate *skeptics* of the world for the past 30 years missed such an obvious problem?

    The data is and has been publicly available – yet the WUWT’s of the world, thousands of climate scientists, thousands of laypersons who have downloaded and looked at the data all have missed such an obvious error?

    Jesus, what kind of brain do you need to *fail* to see this is just pure fantasy? Yet, obviously, some people simply cannot think for themselves and are willing to latch onto any stupid claim that comes down the pike.

    Sales of tinfoil hats remain steady.

    1. Dan Marks

      Note to Mr. O’Neill, three things, please.
      First, the article noted that “corrections” to the data record were made on several occasions between the years 2010 and 2012, inclusive. Your pointing out no one saw this mishandling of the data for 30 years is not reasonable is it? In the last 2 or 3 years, I have seen several people who looked at the several data sets make note that someone has been modifying the historical base data in the recent period.
      Second, each time the data is changed it is changed toward making the past trend upward, never downward. If the changes were mere “corrections,” would not at least some of the corrections be in the other direction?
      Third, you have to admit that with the recent flattening of the Earth’s temperature measurements, it is only by said manipulations that the alarmists could show an upward trend and thereby maintain the alarms. Do you see that, if there were no continued warming, there would be no reason to continue the ruse?
      Think it over, my friend. Surely reason must prevail over irrationality.

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  9. Bob B

    NASA/NOAA have been caught/exposed several times now for altering data. So was East Anglia.

    The climate models have been proven to be wrong and once fixed actually reflect the raw data : http://www.perthnow.com.au/news/opinion/miranda-devine-perth-electrical-engineers-discovery-will-change-climate-change-debate/news-story/d1fe0f22a737e8d67e75a5014d0519c6

    Non tree ring data shows the world has a long running temperature fluctuation that stays within a range. Loehle and McCulloch published this: http://www.econ.ohio-state.edu/jhm/AGW/Loehle/Loehle_McC_E&E_2008.pdf

    That study by Loehle and McCulloch coincides with solar activity. During low periods of solar activity (minimums), Earth’s temps fall. We are entering another minimal solar activity period which is expected to cause temps to fall for the next 50 years or so.

    The biggest flaw in the theories/claims of global warming supporters is that CO2 has such a large effect on Earth’s temperature, it does not. CO2 changes actually follow temperature changes, not the other way around. CO2 is only 0.04% of the atmosphere and satellite data shows that temps are not going up even though CO2 has risen slightly. That is the same trend you see going back thousands of years… temps go up then CO2 levels rise.

    As for peer review, it’s worthless now. Studies have been done showing that papers that contained nothing but gibberish were given peer reviewed status. That kind of thing destroys any validity or credibility that the peer reviewed process ever had.

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  11. Chris Twining

    I’ve said it before and I’ll say it again. Man does not now, nor has he ever before, possessed the ability to alter the climate over any period of time and to believe such is a level of unbelievable arrogance. One question… Who was responsible for climate change 100 year ago, 1000 years ago, 1 million years ago?

    1. Doug R

      Even the Church has jumped enthusiastically onto the AGW bandwagon! People think the environment revolves around Man. How humiliated will the credulous be, when a few years from now the environment is ultimately proven to be functionally heliocentric?

      Basically this stands to be “Galileo II” for the Church, and if it is, the Church’s credibility on anything for centuries will emerge very damaged.

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  15. Hans Henrik Hansen

    Another good example of ‘data adjustment’ is shown here:
    The explanatory text is:
    “Diagram showing the adjustment made since May 2008 by the National Climatic Data Center (NCDC) in the anomaly values for  the two months January 1915 and January 2000. See also this diagram. Last diagram update 18 November 2015”.
    ‘See also this diagram’ refers to:

    H/T professor Ole Humlum, Oslo

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