97 Articles Refuting The “97% Consensus”

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The 97% “consensus” study, Cook et al. (2013) has been thoroughly refuted in scholarly peer-reviewed journals, by major news media, public policy organizations and think tanks, highly credentialed scientists and extensively in the climate blogosphere. The shoddy methodology of Cook’s study has been shown to be so fatally flawed that well known climate scientists have publicly spoken out against it,

The ‘97% consensus’ article is poorly conceived, poorly designed and poorly executed. It obscures the complexities of the climate issue and it is a sign of the desperately poor level of public and policy debate in this country [UK] that the energy minister should cite it.”

Mike Hulme, Ph.D. Professor of Climate Change, University of East Anglia (UEA)

The following is a list of 97 articles that refute Cook’s (poorly conceived, poorly designed and poorly executed) 97% “consensus” study. The fact that anyone continues to bring up such soundly debunked nonsense like Cook’s study is an embarrassment to science.


Summary: Cook et al. (2013) attempted to categorize 11,944 abstracts of papers (not entire papers) to their level of endorsement of AGW and found 7930 (66%) held no position on AGW. While only 65 papers (0.5%) explicitly endorsed and quantified AGW as +50% (Humans are the primary cause). Their methodology was so fatally flawed that they falsely classified skeptic papers as endorsing AGW, apparently believing to know more about the papers than their authors. Cook et al.’s author self-ratings simply confirmed the worthlessness of their methodology, as they were not representative of the sample since only 4% of the authors (1189 of 29,083) rated their own papers and of these 63% disagreed with their abstract ratings.


[ Journal Coverage ]

Energy PolicyQuantifying the consensus on anthropogenic global warming in the literature: A re-analysis (PDF) (October 2014)
Energy PolicyQuantifying the consensus on anthropogenic global warming in the literature: Rejoinder (PDF) (October 2014)
Science & EducationClimate Consensus and ‘Misinformation’: A Rejoinder to Agnotology, Scientific Consensus, and the Teaching and Learning of Climate Change (PDF) (August 2013)


[ Media Coverage ]

American ThinkerClimate Consensus Con Game (February 17, 2014)
BreitbartObama’s ’97 Percent’ Climate Consensus: Debunked, Demolished, Staked through the heart (September 8, 2014)
Canada Free PressSorry, global warmists: The ’97 percent consensus’ is complete fiction (May 27, 2014)
Financial PostMeaningless consensus on climate change (September 19, 2013)
Financial PostThe 97%: No you don’t have a climate consensus (September 25, 2013)
ForbesGlobal Warming Alarmists Caught Doctoring ’97-Percent Consensus’ Claims (May 30, 2013)
Fox NewsBalance is not bias — Fox News critics mislead public on climate change (October 16, 2013)
Herald SunThat 97 per cent claim: four problems with Cook and Obama (May 22, 2013)
Power LineBreaking: The “97 Percent Climate Consensus” Canard (May 18, 2014)
SpikedGlobal warming: the 97% fallacy (May 28, 2014)
The Daily CallerWhere Did ’97 Percent’ Global Warming Consensus Figure Come From? (May 16, 2014)
The Daily Telegraph97 per cent of climate activists in the pay of Big Oil shock! (July 23, 2013)
The GuardianThe claim of a 97% consensus on global warming does not stand up (June 6, 2014)
The New AmericanGlobal Warming “Consensus”: Cooking the Books (May 21, 2013)
The New AmericanCooking Climate Consensus Data: “97% of Scientists Affirm AGW” Debunked (June 5, 2013)
The New AmericanClimategate 3.0: Blogger Threatened for Exposing 97% “Consensus” Fraud (May 20, 2014)
The Patriot PostThe 97% Consensus — A Lie of Epic Proportions (May 17, 2013)
The Patriot PostDebunking the ‘97% Consensus’ & Why Global Cooling May Loom (August 7, 2014)
The Press-EnterpriseDon’t be swayed by climate change ‘consensus’ (September 10, 2013)
The Tampa TribuneAbout that ’97 percent’: It ain’t necessarily so (May 19, 2014)
The Wall Street JournalThe Myth of the Climate Change ‘97%’ (May 26, 2014)
Troy MediaBandwagon psychology root of 97 per cent climate change “consensus” (February 18, 2014)
WNDBlack Jesus’ Climate Consensus Fantasy (June 25, 2013)


[ Organization Coverage ]

Competitive Enterprise InstituteConsensus Shmensus (September 5, 2013)
Cornwall AllianceClimate Consensus? Nonsense! (June 16, 2014)
Friends of ScienceFriends of Science Challenge the Cook Study for Bandwagon Fear Mongering on Climate Change and Global Warming (May 21, 2013)
Friends of ScienceOnly 65 Scientists of 12,000 Make up Alleged 97% on Climate Change and Global Warming Consensus (May 28, 2013)
Friends of Science97% Consensus? No! Global Warming Math Myths & Social Proofs (PDF) (February 3, 2014)
Friends of ScienceClimate Change Is a Fact of Life, the Science Is Not Settled and 97% Consensus on Global Warming Is a Math Myth (February 4, 2014)
George C. Marshall InstituteThe Corruption of Science (October 5, 2014)
John Locke FoundationThe 97% consensus on global warming exposed (July 3, 2014)
Liberty FundDavid Friedman on the 97% Consensus on Global Warming (February 27, 2014)
Global Warming Policy FoundationConsensus? What Consensus? (PDF) (September 2, 2013)
Global Warming Policy FoundationFraud, Bias And Public Relations: The 97% ‘Consensus’ And Its Critics (PDF) (September 8, 2014)
National Center for Policy AnalysisThe Big Lie of the “Consensus View” on Global Warming (July 30, 2014)
National Center for Public Policy ResearchDo 97% of All Climate Scientists Really Believe Mankind is Causing Catastrophic Global Warming? (February 10, 2014)
Principia Scientific InternationalExposed: Academic Fraud in New Climate Science Consensus Claim (May 23, 2013)
The Heartland InstituteWhat 97 Percent of Climate Scientists Do (May 12, 2014)


[ Weblog Coverage ]

Australian Climate Madness‘Get at the truth, and not fool yourself’ (May 29, 2014)
Bishop Hill‘Landmark consensus study’ is incomplete (May 27, 2013)
Climate AuditUnderCooked Statistics (May 24, 2013)
Climate Etc. (Judith Curry Ph.D.) – The 97% ‘consensus’ (July 26, 2013)
Climate Etc. (Judith Curry Ph.D.) – The 97% ‘consensus’: Part II (July 27, 2013)
Climate Etc. (Judith Curry Ph.D.) – The 97% feud (July 27, 2014)
Climate ResistanceTom Curtis Doesn’t Understand the 97% Paper (July 27, 2013)
JoNovaCook’s fallacy “97% consensus” study is a marketing ploy some journalists will fall for (May 17, 2013)
JoNovaThat’s a 0.3% consensus, not 97% (July 1, 2013)
JoNova“Honey, I shrunk the consensus” – Monckton takes action on Cooks paper (September 24, 2013)
JoNovaJohn Cook’s consensus data is so good his Uni will sue you if you discuss it (May 18, 2014)
JoNovaUni Queensland defends legal threats over “climate” data they want to keep secret (May 21, 2014)
JoNovaCook scores 97% for incompetence on a meaningless consensus (June 6, 2014)
José Duarte (Ph.D.) – Cooking stove use, housing associations, white males, and the 97% (August 28, 2014)
José Duarte (Ph.D.) – The art of evasion (September 9, 2014)
Making Science PublicWhat’s behind the battle of received wisdoms? (July 23, 2013)
Popular Technology.net97% Study Falsely Classifies Scientists’ Papers, according to the scientists that published them (May 21, 2013)
Popular Technology.netThe Statistical Destruction of the 97% Consensus (June 1, 2013)
Popular Technology.netCook’s 97% Consensus Study Game Plan Revealed (June 4, 2013)
Richard Tol (Ph.D.) – The Consensus Project: An update (August 16, 2013)
Richard Tol (Ph.D.) – Biases in consensus data (August 24, 2013)
Richard Tol (Ph.D.) – More irregularities in the consensus data (August 24, 2013)
Richard Tol (Ph.D.) – Open letter to the Vice-chancellor of the University of Queensland (August 27, 2013)
Richard Tol (Ph.D.) – Bootstrap results for initial ratings by the Consensus Project (August 28, 2013)
Richard Tol (Ph.D.) – The 97% consensus (May 10, 2014)
Richard Tol (Ph.D.) – My First Audioslide (May 20, 2014)
Richard Tol (Ph.D.) – A new contribution to the consensus debate (June 4, 2014)
Richard Tol (Ph.D.) – 24 errors? (June 8, 2014)
Richard Tol (Ph.D.) – More Cook data released (July 21, 2014)
Richard Tol (Ph.D.) – Days of rater bias (July 23, 2014)
Richard Tol (Ph.D.) – Days of rater bias (ctd) July 28, 2014)
Richard Tol (Ph.D.) – Another chapter on the 97% nonsensus (August 1, 2014)
Richard Tol (Ph.D.) – ERL does not want you to read this (October 14, 2014)
The Blackboard (Lucia Lundgren Ph.D.) – I Do Not Think it Means What You Think it Means (May 15, 2013)
The Blackboard (Lucia Lundgren Ph.D.) – On the Consensus (May 17, 2013)
The Blackboard (Lucia Lundgren Ph.D.) – Nir Shaviv: One of the 97% (May 17, 2013)
The Blackboard (Lucia Lundgren Ph.D.) – Why Symmetry is Bad (May 19, 2013)
The Blackboard (Lucia Lundgren Ph.D.) – Possible Self-Selection Bias in Cook: Author responses. (May 20, 2013)
The Blackboard (Lucia Lundgren Ph.D.) – Bias Author Survey: Pro AGW (May 21, 2013)
The LidClaim 97% of Climate Scientists Believe In Global Warming is TOTALLY BOGUS! (May 21, 2014)
The State of the ClimateCook’s survey not only meaningless but also misleading (May 17, 2013)
WUWTThe Collapsing ‘Consensus’ (May 22, 2013)
WUWTSelf admitted cyber thief Peter Gleick is still on the IOP board that approved the Cook 97% consensus paper (June 4, 2013)
WUWT‘Quantifying the consensus on global warming in the literature’: a comment (June 24, 2013)
WUWTOn the 97 percenters: ‘You Must Admit, They Were Careful’ (July 28, 2013)
WUWTWhat Is Cook’s Consensus? (July 29, 2013)
WUWTCooks ‘97% consensus’ disproven by a new peer reviewed paper showing major math errors (September 3, 2013)
WUWT97% Climate consensus ‘denial’: the debunkers debunked (September 9, 2013)
WUWTJoin my crowd-sourced complaint about the ‘97% consensus’ (September 20, 2013)
WUWTThe 97% consensus myth – busted by a real survey (November 20, 2013)
WUWT97% of pictures are worth 1000 climate words (February 26, 2014)
WUWTJohn Cook’s 97% consensus claim is about to go ‘pear-shaped’ (May 10, 2014)
WUWTAn Open Letter puts the University of Queensland in a dilemma over John Cook’s ‘97% consensus’ paper (May 22, 2014)
WUWTThe climate consensus is not 97% – it’s 100% (June 11, 2014)
WUWTThe disagreement over what defines ‘endorsment of AGW’ by Cook et al. is revealed in raters remarks, and it sure isn’t a 97% consensus (June 24, 2014)
WUWTIf 97% of Scientists Say Global Warming is Real, 100% Say It Has Nearly Stopped (November 18, 2014)


Rebuttals to Criticisms:

Critism: Tol (2014) was rejected by other journals for being flawed.

Rebuttal: Dr. Tol’s paper was censored by Environmental Research Letters (ERL), which conveniently has multiple alarmists scientists on its editorial board (e.g. Peter Gleick and Stefan Rahmstorf) and rejected by two other journals for being “out of scope” (off topic) not flawed.

Critism: Tol (2014) has 24 errors in it.

Rebuttal: Dr. Tol refuted all of these claims in a post online and in his published rejoinder.

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