The World Meteorology Organisation (WMO), the agent of the UN, intervened in 1998 to unify world temperature data sets. This came after the National Oceanic and Atmospheric Administration, led by Tom Karl, had posted a global temperature of 62.45 degrees Fahrenheit (16.91 degrees Celsius) in the previous year. NOAA in its explanation for the higher reading in 1997, failed to mention it had been using the same method of measuring for 97 years, since 1900, when it recorded a global temperature of 61.50 F (16.38 C). NOAA were then asked to peg their 1997 temperature back to 14.42 C, just below WMO at 14.44 C. From then on all the world data sets were kept within tenths of a degree of each other. The fact that the global temperatures below were later reduced by more than two degrees Celsius would suggest that there was never any record of global temperatures up to 1997 and the archived temperature data sets published today were simply made up.                WMO baseline reference (1961-1990) was 14.00 C (57.20 F)  WMO 1995  WMO 1996   WMO 1997  WMO 1998

1997 Hottest Year Ever?                       NEW YORK TIMES

According to the data presented by Mr. Karl, combined land and ocean temperatures last year averaged three-quarters of a degree Fahrenheit above normal, the mean temperature for the years from 1961 to 1990. The temperatures exceeded the record, set in 1990, by fifteen-hundredths of a degree. The actual average surface temperature last year (1997) was a little more than 62 degrees Fahrenheit, said the report by the National Climatic Data Center. NYT

The other, maintained by the NASA Goddard Institute for Space Studies in New York, shows the average 1995 temperature at 59.7 degrees F, (15.38 C) slightly ahead of 1990 as the warmest year since record-keeping began in 1866. But the difference is within the margin of sampling error, and the two years essentially finished neck and neck. NYT

NOAA in 1995 recorded a temperature of 62.30 F (16.83 C), almost 1.5 C warmer than that recorded by NASA. NOAA’s own graphs showed temperatures of approximately 62.00 F+ for 1991 and a temperature of 62.45 F for 1997. The graph above appears to show that NOAA had used a higher baseline temperature (61.70 F) for the period between 1900-1997

As early as February 4, 1988: The British readings showed that the average global temperature in 1988 was 0.612 degrees Fahrenheit higher than the long-term average for the period 1950 through 1979, which is a base for comparing global temperatures. Average worldwide temperature for that 30-year period is roughly 59 degrees (15.0 C) Fahrenheit, the British researchers said. The 1988 average temperature was 0.018 degrees higher than the average for 1987, the previous high year. Therefore the global temperature in 1988 was 59.62 F (15.344 C) and 1987 59.62 F (15.334 C) at 0.18 F less than 1988. NYT

NOAA 1997

NOAA recorded a temperature of 62.30 F/(16.83 C) in 1995 and 62.45 F/(16.91 C) in 1997 this was two degrees C warmer than recorded by NOAA in their most recent report in 2019 at 58.73 F/(14.85 C).

First Temperature Data

Prior to this temperature measuring authorities such as the British Meteorology office and NASA were similarly at odds: NASA Goddard Institute for Space Studies in New York, showed the average 1995 temperature at 59.7 F, (15.38 C) slightly ahead of 1990 as the warmest year since record-keeping began in 1866″. “But the difference is within the margin of sampling error, and the two years essentially finished neck and neck”. “Both the 1995 record high temperature and the strikingly warm half-decade of the early 1990’s are “consistent with the sort of expectation we have of the interplay between natural and man made influences,” said Dr. Tom M. L. Wigley of the National Center for Atmospheric Research in Boulder, Colo. Dr. Wigley was a member of a subcommittee of the United Nations panel that dealt specifically with detecting a human role in climate change”.

It is patently obvious that the long term temperature data sets of today must have been configured after these reports were published. It was the UN who changed the NOAA temperature data reducing temperature from 16.91 C in 1997 to 14.44 C in 1998.

A change of temperature was often masked by the publication of an anomaly in reference to a baseline period, which is not always revealed, rather than stating what actual temperature was. We may never know how much the world is actually warming and the use of modeling has not worked. The role of the UN appears to have changed from peace keeper and provider of aid.



  1. John Carmody says:

    It is frightening to learn that NOAA had wiped 97 years off its own records to be part of this deception. I can’t help thinking this could be connected to Michael Mann’s hide the decline which resulted in a dramatic upward surge in world temperatures from 1900.

  2. Hal Armstrong says:

    JAN. 9, 1991
    ROB STEIN UPI Science Editor

    WASHINGTON — Earth’s average surface temperature was higher in 1990 than any other year on record, possibly a sign of dreaded global warming, scientists reported Wednesday.
    An analysis of data collected at 2,000 meterological stations around the globe found 1990 was warmest year in records dating back to 1880 — with temperatures averaging 59.8 degrees Fahrenheit.
    That represents a half-degree rise in average global temperature from 1989 and an increase of 0.8 degrees over the average from 1951 to 1980, said James Hansen, director of the NASA Goddard Institute for Space Studies in New York.
    NOAA graph you have featured is interesting!

  3. Stuart says:

    The only explanation is that allowance had to be made for the different measuring techniques used in earlier years and transposing the higher temperatures to the lower readings of present day. That would depend on how far you could go back without messing things up. The fact that they have not provided more detail in the 1998 WMO data is worrying.

  4. Dougie Come Furst says:

    There will be too many of us well before the world gets too hot. Why are we ignoring the elephant in the room ..OVERPOPULATION.. duh..duh

  5. Anonyme says:

    We needed a large dose of reality and the Covid-19 has provided that.

  6. Sel Murray says:

    The US and British temperature data was all over the place prior to 1998 which is probably the reason why the UN stepped in. Apart from the NOAA graph there were NO archived annual temperature data sets published by either one at that time. It is significant that the WMO/UNEP Intergovernmental Panel on Climate Change (IPCC) held their first session on the 9-11 November 1988 in Geneva, Switzerland. Global cooling (the ice age cometh) had just finished a few years earlier.It was during this year that NOAA first published temperature data.

  7. Len Marinko says:

    For the calendar year of 1999, according to NOAA, the United States experienced its third warmest year since 1895 with a preliminary average value for 1999 of 54.5 degrees F. This follows 1998’s all time record of 54.9 degrees”. However the NOAA 1997 report had posted a temperature of 62.45 degrees. NOAA did admit that all their previous temperature values were incorrect which I assume stretched back to 1895!

  8. Angela Garby says:

    According to WMO records the global temperature was 14.43 C (57.96 F) compared to 16.91 C (62.45 F) recorded by NOAA in 1997. WMO recorded a temperature of 14.40 C (57.92 F) compared to 62.30 (16.83 C) by NOAA in 1995.

  9. Ray Garby says:

    Imagine how accurate temperature records were in 1850. Everyone was on horseback then and the pony express was not established till 1860.
    Most of the early values were based on tree ring data which we know can vary widely depending on the growing conditions.

  10. Ray Garby says:

    The global temperature records might not have been published until 1998. Prior to 1998, in the period 1988-1997, Tom Karl of NOAA, James Hansen of NASA and Phil Jones of the British Met Office were publishing annual temperatures that were more than two degrees Celsius warmer than what appears in the records today. Today all world temperature data sets are within tenths of a degree of each other.

  11. John Carsons says:

    It might be possible, now that we have satellites, to measure the earth’s temperatures but to list records that go back to 1880 and use them to gauge the rate of temperature change is ridiculous. Collusion and Mendacity are the alarmists tools of trade

  12. H Lashwood says:

    NOAA have an impeccable record and NASA have put people on the Moon so you would think their data would be precise. It is incredible that they could be sidelined by the UN who seem to have been running the show. The temperatures recorded by NOAA, NASA and Met Office, up to 1997, were two degrees centigrade warmer than WMO. In 1998 all their previous temperature history was erased and replaced by WMO data. These changes do not appear in official records.
    This story was published back in 2012 but there was no public interest as I recall.

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