Ten Years Later, CRU Still Hiding The Decline

Ten years ago I wrote my first climate article at The Register.

Two authorities provide us with analysis of long-term surface temperature trends. Both agree on the global temperature trend until 1998, at which time a sharp divergence occurred. The UK Meteorological Office’s Hadley Center for Climate Studies Had-Crut data shows worldwide temperatures declining since 1998. According to Hadley’s data, the earth is not much warmer now than it was than it was in 1878 or 1941.

Is the earth getting warmer, or cooler? • The Register

This was the Had-Crut graph in the article.

This is the current Had-Crut graph.

HadCRUT4.png (630×730)

Note that the post-1998 cooling has since disappeared.

Since my 2008 article, NASA has also cooled the past and warmed the present.

graph.png (1130×600)

The year after I wrote that article, the Climategate E-Mails were released.

“I’ve just completed Mike’s Nature trick of adding in the real temps to each series for the last 20 years (ie from 1981 onwards) and from 1961 for Keith’s to hide the decline.”

  • Phil Jones CRU

The original context of “Hiding The Decline” was not hiding the post-1998 decline in temperatures, as this 2011 BBC article pointed out. Richard Black at the BBC angrily announced that CRU was not hiding the post-1998 decline, before he realized that isn’t what people were complaining about.

The original “hide the decline” claim is one of the most easily de-bunked in the entire pantheon of easily-debunkable “sceptic” claims. Phil Jones wrote the email in 1999, immediately following what still ranks as one of the hottest years on record, and well before the idea of a “slowdown” or “hiatus” or even “decline” in warming gained currency. So it can’t have had anything to do with hiding a global temperature decline.

‘Hide the decline’ revisited – BBC News

But now, CRU is hiding the post-1998 decline.

And the hiatus which the BBC wrote about in 2011 has since been officially disappeared by the climate mafia.

Even though it was central to the last IPCC report

Global warming pause ‘central’ to IPCC climate report – BBC News

This article appeared on Real Clear Politics in 2009.  But since then, the political left has lost any remaining shred of integrity they might have had,

Deceitful manipulation of data, concealment or straightforward destruction of inconvenient evidence, vindictive conspiracies to silence critics, are par for the course in all scientific debate. But in displaying all these characteristics, the CRU e-mails graphically undermine the claim of the Warmers that they command the moral as well as scientific high ground.

Anthropogenic Global Warming is a Farce | RealClearPolitics

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6 Responses to Ten Years Later, CRU Still Hiding The Decline

  1. GW Smith says:

    Great article from 2009 has proven clearly true today, yet the left acts like they’re vindicated. They never quit, they just morph, like a virus.

  2. CO2isLife says:

    People should focus on tying the cause to the effect. CO2 is claimed to cause the temperature increase. If that is the case, experiments should be run to isolate the impact of CO2 on temperature. While that is difficult for a climate system, generalities can be made. Here is an example of how to isolate the impact of CO2 on temperature using a scientific approach, not a computer model.

    Isolating the Contribution of CO2 on Atmospheric Temperature
    In any serious scientific experiment, efforts are made to “control” for as many exogenous factors as possible. The whole purpose is to isolate the impact of the independent variable on the dependent variable. ΔWeightloss = ΔCaloric Intake + ΔExercise + ΔBase Metabolism + error. To minimize the error of the model (maximize explanatory power), variables outside … Continue reading

  3. garyh845 says:

    Let’s not forget Michael Mann, and friends 2017 paper:

    Making sense of the early-2000s warming slowdown

    John C. Fyfe, Gerald A. Meehl, Matthew H. England, Michael E. Mann, Benjamin D. Santer, Gregory M. Flato, Ed Hawkins, Nathan P. Gillett, Shang-Ping Xie, Yu Kosaka & Neil C. Swart

    It has been claimed that the early-2000s global warming slowdown or hiatus, characterized by a reduced rate of global surface warming, has been overstated, lacks sound scientific basis, or is unsupported by observations. The evidence presented here contradicts these claims.

    Here: https://www.nature.com/articles/nclimate2938?foxtrotcallback=true

  4. Bruce of Newcastle says:

    You’re making headway Tony. This is in Investors Business Daily today:

    The Stunning Statistical Fraud Behind The Global Warming Scare

    What NOAA does aren’t niggling little changes, either.

    As Tony Heller at the Real Climate Science web site notes, “Pre-2000 temperatures are progressively cooled, and post-2000 temperatures are warmed. This year has been a particularly spectacular episode of data tampering by NOAA, as they introduce nearly 2.5 degrees of fake warming since 1895.”

    So the global warming scare is basically a hoax.


  5. Adam Gallon says:

    “Hide the decline” wasn’t connected with instrumental temperature measurements, but with the decline in proxy temperatures.

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