Redress the Lack of Scientific Integrity of the UN’s Climate Change Panel (IPCC)

Letter to: UN Secretary General Ban Ki-moon,           14th of July, 2008

Copied to the G8 leaders


Dear Secretary General Ban Ki-moon,


The UN Climate Change Panel must be called to account and cease its deceptive practices  - Policies based on false science must be ended


We, an independent group of experts in various aspects of science and the environment, ask you to redress the lack of scientific integrity of the UN’s Climate Change Panel (IPCC) and to stop making reactionary and futile ‘Climate Change’ recommendations that hold back the developing world.


As you read this, policies that you endorse are already causing misery and starvation for the world's poor.


On the 14th of April this year some of us wrote to the Chair of the IPCC, Dr Rajendra Pachauri, copied below and available on the UN CAPSA site (ref E), asking him to present clear and graphic evidence of the theory that carbon dioxide (CO2) drives global temperature. We pointed out that no such evidence exists and offered charts and references that refute the man-made global warming theory.


Dr. Pachauri has failed to respond. Perhaps he lacks the knowledge to defend his position. Nevertheless, the IPCC's 51 ‘drafting and draft-contributing authors’ of the Summary for Policymakers (ref A) – not thousands as claimed - includes scientists who are surely obliged to provide such evidence if any exists.


For your illumination we refer you to:

(i)  The chart in our letter of 14 April (page 3) which shows, using official data, that for the last decade World Temperatures have been falling whilst CO2 keeps rising, and


(ii)  A geological (Greenland ice core) chart of polar climate covering the last 10,000 years (Ref B) which shows that while CO2 levels have been rising, temperatures have been falling since the Bronze Age around 4,000 years ago (see page 2).


The assertion that the recent rapid rise of CO2 is unique and dangerous is both deceptive and irrelevant because CO2 does not drive the world's climate. Claims that such rapid rises have not happened before are not supported by ice-core or other geological records (ref C).


Either the IPCC is simply failing to notice these gross discrepancies or it is consciously evading or covering-up observations that challenge its theories.


Given the facts (i) above, from observations over the last decade alone, there can be no justification for trying to restrict CO2 levels and retard third-world development while temperatures are in fact falling (also see Note D). Considering data over the last 4,000 years (ii), in its Summary for Policymakers and in its Full Report, the IPCC depicts CO2 rising but fails to depict a corresponding fall in temperature.


From its obstinate resistance to answer inquiries — an insult to the public, let alone to other scientists — one can only conclude that the IPCC is engaged in a self-serving distortion of data acquired at public expense.


Whatever might have seemed the case ten years ago, now, with better data and understanding, there is clearly no evidence for the CO2-based theory of global warming. Indeed, there is only evidence against it. Therefore, as a matter of utmost importance we urge you to:


1.     Call the IPCC to account - Hold an Inquiry into its operations. Insist that it adhere to the same ‘prove and predict’ norms as other sciences. Further, noting its impotence in the face of contradictory evidence, lead the UN into abandoning the CO2-based theory of global warming and nullifying its former recommendations.


2.     Immediately announce your opposition to biofuels – whose large-scale production entails the displacement of food crops, thus raising the price of food and bringing starvation to the poor.


Please do not hesitate to ask us for further information or assistance and we will provide it directly or through other independent, qualified colleagues.


Yours sincerely,

Piers Corbyn

Astrophysicist & forecaster, WeatherAction, UK

Vincent Gray

IPCC Expert Reviewer, Climate Consultant, NZ

Richard Courtney

IPCC Exp. Rev., Energy & Envir. Consultant, UK

Hans Labohm

IPCC Expert Reviewer, Economist & Author, Holland

Will Alexander

Prof. Em. Dept. Civil & Biosystems, South Africa

Don Parkes

Prof. Human Ecology (Ret.) Australia & Japan

Joseph D’Aleo

Certified Consultant Meteorologist, Fellow AMS, USA

Svend Hendriksen

Nobel Peace Prize 1988 (shared), Greenland

Alan Siddons

Climate Researcher, USA

Bob Ashworth

Chem. Eng. (Energy & Environment), USA

Norm Kalmanovitch

Geophysicist, Canada,

Jim Peden

Atmospheric Physicist (Ret.), USA

Hans Schreuder

Analytical Chemist (Ret.), UK




A) IPCC Summary for Policymakers (Fig SPM1 on page 4 fails to include temperature data alongside CO2 estimates over the last 4,000 years or more): . The Full report (via ) similarly fails to include the available data required.


B) Greenland Ice data page 49.


C) CO2 is a gas and diffuses through many centuries of ice layers when absorbed hence rapid ‘spike’ changes in CO2 in recent decades will be smudged out to small blips in 1,000 years time. Past peaks are also smudged out and invisible now. Stomatal pore data from geological studies shows that there have been sharp peaks in CO2 concentrations in the past: page 6 of pdf; p10 and p12.


D) Leaving aside the question as to whether warming is really a problem in the first place - the Bronze Age having been described as the ‘Climate Optimum’ of the period since the last ice age (the ‘Holocene').


E) UN CAPSA site -





Copy of Letter 14 April (as on UN CAPSA site -


Dr. Rajendra Pachauri

Chairman Intergovernmental Panel on Climate Change

c/o World Meteorological Organization

7bis Avenue de la Paix

C.P. 2300 CH- 1211 Geneva 2,


14 April 2008


Dear Dr. Pachauri and others associated with IPCC,


We are writing to you and others associated with the IPCC position – that man’s CO2 is a driver of global warming and climate change – to ask that you now in view of the evidence retract support from the current IPCC position [as in footnote 1] and admit that there is no observational evidence in measured data going back 22,000 years or even millions of years that CO2 levels (whether from man or nature) have driven or are driving world temperatures or climate change.


If you believe there is evidence of the CO2 driver theory in the available data please present a graph of it.


We draw your attention to three observational refutations of the IPCC position (and note there are more). Ice-core data from the ACIA (Arctic Climate Impact Assessment) shows that temperatures have fallen since around 4,000 years ago (the Bronze Age Climate Optimum) while CO2 levels have risen, yet this graphical data was not included in the IPCC Summary for Policymakers (Fig. SPM1 Feb07) which graphed the CO2 rise.


More recent data shows that in the opposite sense to IPCC predictions world temperatures have not risen and indeed have fallen over the past 10 years while CO2 levels have risen dramatically. The up-dated temperature measurements have been released by the NASA’s Microwave Sounding Unit (MSU) [1] as well as by the UK’s Hadley Climate Research Unit (Temperature v. 3, variance adjusted – Hadley CRUT3v) [2]. In parallel, readings of atmospheric concentrations of CO2 have been released by the Mauna Loa Observatory in Hawaii [3]. They have been combined in graphical form by Joe D’Aleo [4], and are shown below.


These latest temperature readings represent averages of records obtained from standardized meteorological stations from around the planet, located in both urban as well as rural settings. They are augmented by satellite data, now generally accepted as ultimately authoritative, since they have a global footprint and are not easily vulnerable to manipulation nor observer error. What is also clear from the graphs is that average global temperatures have been in stasis for almost a decade and may now even be falling.


A third important observation is that contrary to the CO2 driver theory, temperatures in the upper troposphere (where most jets fly) have fallen over the past two decades. [Footnote 2]


IPCC policy is already leading to economic and unintended environmental damage. Specifically the policy of burning food – maize as biofuel – has contributed to sharp rises in food prices which are causing great hardship in many countries and is also now leading to increased deforestation in Brazil, Malaysia, Indonesia, Togo, Cambodia, Nigeria, Burundi, Sri Lanka, Benin and Uganda for cultivation of crops [5].


Given the economic devastation that is already happening and which is now widely recognised will continue to flow from this policy, what possible justification can there be for its retention?

We ask you and all those whose names are associated with IPCC policy to accept the scientific observations and renounce current IPCC policy.


Yours sincerely,

Hans Schreuder Piers Corbyn Dr Don Parkes Svend Hendriksen

Analytical Chemist UK Astrophysicist UK Prof. Human Ecology (Ret) Nobel Peace Prize 1988 (shared)

mMensa Dir. Australia and Japan Greenland

Cc: IPCC’s

Tim Yeo MP (Chairman Environmental Audit Committee) Lord Martin Rees (President Royal Society)