Skeptical Authors on Climate Science

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This table lists the 17 people who appeared in the UK television deocumentary The Great Global Warming Swindle by Martin Durkin, tagged as TGGWS; this including those who objected to the way their views were presented - tagged as (TGGWS) in parentheses. Combined with this are the 37 names who signed a letter of complaint about scientific inaccuracies in the film, tagged as noSw07

Next to each person's name is their standing in the overall list of climate authors, in the same sort order as this table.

Notes column tinted this colour for signers of these 'activist' statements:
SCS03: 2003 'State of Climate Science' letter from 1011 scientists to U.S. congress (81 tagged)
CMOS06: 2006 statement from 120 scientists at the Canadian Meteorological and Oceanographic Society (all tagged)
CMOS08: 2008 statement from 130 scientists at the Canadian Meteorological and Oceanographic Society (all tagged)
RealClimate 'activist' website by ten climate scientists, founded 2004
noSw07: April 2007 letter from 37 scientists to Martin Durkin protesting inaccurate portrayal of climate science in his film The Great Global Warming Swindle (all tagged)
Bali07: 2007 appeal letter by 212 scientists from 25 countries, to delegates at the Bali climate talks (all tagged)
CCSP08: 2008 Assessment Report from the U.S. Climate Change Science Program [10 authors tagged so far; not a petition/declaration]
UCS08: 2008 Union of Concerned Scientists' declaration from 1700 U.S. scientists and economists (165 tagged)
Monaco09: Jan. 2009 Monaco Declaration on ocean acidification from 155 ocean scientists from 26 countries (152 tagged)
CLI09June 2009 Open letter to Obama and Congress calling for agressive action on climate change; signed by 20 scientists (all listed)
UKsc09: Dec. 2009 'Statement from the UK science community' re-affirming climate change science and data after East Anglia email break-in, signed by 1700 UK scientists from 67 universities and 55 other institutions (106 listed, 2010-1-17).
Notes column tinted this colour for signers of these 'skeptic' statements
SEPP92 1992 'Statement by Atmospheric Scientists on Greenhouse Warming' from the 'Science and Environment Policy Project', 46 signers
LZ95: 1995 'Leipzig Declaration' organized by Fred Singer, signed by 80 scientists and 25 weathermen
CA02: 2002 skeptics letter to Canadian P.M. Jean Chretien
CA03: 2003 skeptics letter to Canadian P.M. Paul Martin
CA06: 2006 skeptics letter to Canadian P.M. Stephen Harper
UN07: 2007 skeptics letter to U.N. Sec. General Ban Ki-Moon
TGGWS: 2007 TV film The Great Global Warming Swindle interviewees
NIPCC: 2008 Heartland Inst. document Nature, Not Human Activity, Rules the Climate, ed. S. Fred Singer, 24 listed contributors
MHND: 2008 'Manhattan Declaration' from skeptics' conference in NYC
Cato09: 2009 newspaper ad by the Cato Institute challenging President Obama's stance on climate change; 115 signers
APS09: 2009 Petition to the American Physical Society to amend their statement on climage change
CCC09: 2009 'Copenhagen Climate Challenge' 158 signers
LISTS column tinted this colour for names who did not sign any skeptic declarations, yet are included on a list of 'skeptic' names by someone else:
JIMM08: Named on 2008 list from U.S. Sen. James Inhofe's staffer Marc Morano
LSDeniers: Profiled in Lawrence Solomons's 2006-7 'The Deniers' column series in Canada's National Post
LISTS column tinted this colour for someone who did sign one of the above skeptic statements, and is also included on a list of 'skeptic' names by someone else.

Some major compilations

I've also tagged authors included in a few major compilations of climate science articles. These are not petitions or calls for action, but further illustrate the author's standing in the literature.For details on these declarations and how I've annotated for them, see notes on open letters

Names are sorted in descending order of number of published works that match the word 'climate' in Google Scholar. This total could include non-refereed pieces such as commentary, editorials, or letters to the editor. (Note that citation stats were collected by hand, over a few months, so exact order might vary slightly as papers continue to gain citations as time passes.)

Anyone working in the field of climate science should have a significant number of hits on this search. The median number for IPCC wg1 authors is 93 articles; for all of the roughly 1800 authors I've checked up to July 2009, including skeptics, the median is 56. For the 386 names I've checked so far who were signers of a climate skeptics' statement, the median is two (2).

70% of the skeptics have fewer than 10 published works that mentions of climate and 60% have fewer than five. At the top of the rankings, there are 25 skeptics who have more than the overall median of 56 works mentioning 'climate', and just 12 above the IPCC median of 93.

In the overall list, there are 908 names with 56 or more works mentioning climate, and 593 names with at least 93 works. In this light, self-declared skeptics make up only 2.75% of the first group, or 2.03% of the second.

Mouse over column heading for explanation

Rank hereNotesListsName (homepage)NAT.PhD yearIPCCGS queriesmost cites2nd most3rd most4th mostClimate totalWikipedia?Areas of researchAffiliation
1  2: Michael Hulme, FRMS1985 All PAPS CLIM 1223569481435 728 WP? W.P? climate data assimilationfounding Director and visiting Fellow, Tyndall Ctr
2Bali07 UCS08 CLI09 5: Stephen H Schneider, MNAS, FAAAS, FRANS, MacArthur1971AR3 wg2 CLA AR4All PAPS CLIM 1015279277267 683 WP? W.P? climate predictionStanford U
3CCSP08 8: Dennis P Lettenmaier, FAGU, FAAAS1975 All PAPS CLIM 460421222217 585 WP? W.P? BOREAS, hydrologyCivil Eng., U Washington, Seattle
4FB03 67: Eric F Wood, FAGU1974 ScD All PAPS CLIM 434300259212 291 WP? W.P? hydrology and climatePrinceton U
5SCS03 realclimate UCS08 CLI09NPFhost 93: Michael E Mann1971AR3 wg1 chairAll PAPS CLIM 806759232217 266 WP? W.P? climate history, attributionUCLA
6SotP09 UKsc09ESI01#1797: Jonathan M Gregory1990AR4 wg1All PAPS CLIM 815530508467 263 WP? W.P? modeling, sensitivityU. Reading / Hadley Ctr
7UKsc09NPFhost153: Richard W Katz1974AR4 wg1All PAPS CLIM 363189160129 220 WP? W.P? winds, extreme events, teleconnectionsNCAR, Boulder
8 C&O187: David A Hodell, FAGU1986 All PAPS CLIM 254186179115 206 WP? W.P? paleo, droughtU Cambridge
9CCSP04 TGGWSJIMM08231: John R Christy1987AR4 wg1 leadAll PAPS CLIM 13312410788 186 WP? W.P? MSU satellite temp measurementU Alabama, Huntsville
10  254: Russ K Monson1982 All PAPS CLIM 492244217190 180 WP? W.P? carbon balance of forestsCIRES fellow
11Bali07 268: Peter J Webster, FAGU, FAAAS1972 All PAPS CLIM 596587501434 176 WP? W.P? monsoon prediction, modeling, ENSOGeorgia Tech
12  315: Klaus DethloffPhDAR4 wg1All PAPS CLIM 48474229 162 WP? W.P? modeling arcticAlfred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Germany
13SEPP92 LZ95 CA02 CA03 CA06 TGGWS Cato09JIMM08359: Patrick J Michaels1979 All PAPS CLIM 73434037 149 WP? W.P? heat-related mortality, temp. recordsU Virginia
14SEPP92 LZ95 CA02 CA03 CA06 TGGWS UN07 Cato09 CCC09LSDeniers JIMM08399: Richard Lindzen, FAGU1964 All PAPS CLIM 372335295274 140 WP? W.P? QBO, maritime clouds, iris effect?M.I.T., Cambridge, MA
15  413: Anne M Thompson, FAMS, FAGU, FAAAS1978 All PAPS CLIM 30114112799 137 WP? W.P? biogeochem, remote sensingPenn State U
16  447: Sunling L Gongno cvAR4 wg1All PAPS CLIM 115969694 131 WP? W.P? aerosolsAir Quality Researcch Division, Science & Technology Branch, Environment Canada, Canada
17SCS03 UCS08 487: Katharine HayhoeMScAR4All PAPS CLIM 1821078966 123 WP? W.P? risks, impacts, cost of mitigationTexas Tech U
18SEPP92 LZ95 CA02 CA03 CA06 TGGWS UN07 MHND NIPCC08 APS09JIMM08562: S Frederick Singer, FAGU1948 All PAPS CLIM 56343331 110 WP? W.P? Skeptic of: AGW, CFC-ozone link, 2nd-hand smokeformer director, US NWS, emeritus prof. U Virginia
19  579: Greg Holloway1976 All PAPS CLIM 111989789 107 WP? W.P? topography, eddiesInst of Ocean Sciences, Sidney, BC
20  584: Greg Bodeker1994AR4 wg1All PAPS CLIM 1811616352 107 WP? W.P? ozoneNational Institute of Water and Atmospheric Research, New Zealand
21 ESI01#23 ESI06#20602: Andrew A Lacis1970 All PAPS CLIM 620320281278 104 WP? W.P? aerosolsLamont-Doherty Earth Obs, Columbia U
22  678: Kaz HiguchiPhD All PAPS CLIM 401896247 95 WP? W.P? ocean circ, carbon uptakeEnv. Canada
23CA03 CCSP04 CA06 TGGWS UN07 MHND Cato09 CCC09JIMM08704: Roy W Spencer1981 All PAPS CLIM 212178133124 92 WP? W.P? MSU satellite temp measurementU Alabama, Huntsville
24UKsc09 734: Catherine A Seniorno webAR4 wg1All PAPS CLIM 858548514176 88 WP? W.P? greenhouse effect, carbon feedbacksHadley Centre for Climate Prediction and Research, Met Office, UK
25Bali07 777: Will Steffen1975AR4 wg1All PAPS CLIM 452318308192 83 WP? W.P? terrestrial carbon sinksAustralian National University, Australia
26Nobel Prize 1995 UCS08NPFhost812: Mario J Molina, FAGU, MNAS1972AR4 wg1All PAPS CLIM 1389262216225 80 WP? W.P? atm chemistry, ozone lossScripps Institution of Oceanography, UCSD, La Jolla, CA
27 C&O842: Michel Magny__ All PAPS CLIM 110646158 78 WP? W.P? paleo, glaciers, variabilityLCE, CNRS-UMR, Besancon
28UKsc09ESI0#141045: Christopher D Jonesno cvAR4 wg1All PAPS CLIM 994224170145 61 WP? W.P? feedbacks, carbon cycleHadley Centre for Climate Prediction and Research, Met Office, UK
29  1146: NI Barkov__ All PAPS CLIM 1687354218215 52 WP? W.P? ice coresAARI, St. Petersburg
30 NPFhost1160: Geoffrey A Blake1986 All PAPS CLIM 464323245198 51 WP? W.P? atm chem, BGC cyclesDGPS, Calif Inst of Tech, Pasadena, CA
31UCS08 1165: Louisa K Emmons1994 All PAPS CLIM 26813412583 51 WP? W.P? atm chem, remote sensingNCAR, Boulder, CO
32(TGGWS) ?(LSDeniers) (JIMM08)1291: Eigil Friis-Christensen, FAGU1971 All PAPS CLIM 4263908887 43 WP? W.P? GCRs, solar cycle effect on climateDirector, Danish Space Research Inst
33SotP09 1332: Michael P Russelle1982 All PAPS CLIM 148797069 39 WP? W.P? plant biogeochemUSDA-ARS, U Minnesota, St. Paul, MN
34SCS03 CA06 TGGWSLSDeniers JIMM081366: Paul Reiterno cvAR3 wg2 (resigned)All PAPS CLIM 323138130126 37 WP? W.P? medical entomology, disease vectors, malariaPasteur Inst., Paris
35 C&O1443: J Murray Mitchell Jr.__ All PAPS CLIM 113958469 32 WP? W.P? early 60s-70s climatologistOffice of Climatology, US Weather Bureau, Wash.DC
36TGGWSLSDeniers JIMM081449: Nir Shaviv1996 All PAPS CLIM 198625842 32 WP? W.P? GCRsHebrew University, Jerusalem
37CA03 CA06 TGGWS UN07 MHND Cato09 CCC09JIMM081450: Ian D Clark1987 All PAPS CLIM 693383830 32 WP? W.P? isotope hydrogeology, paleoU Ottawa, Ontario
38UN07 CCC09JIMM081458: Raphael WustPhD All PAPS CLIM 191186 32 WP? W.P? marine geology, sedimentologyJames Cook U
39CA02 CA03 UN07 MHND Cato09 NIPCC09 CCC09JIMM081594: Craig D Idso1998 All PAPS CLIM 43292220 24 WP? W.P? temp recordsHeartland Institute
40LZ95 1600: Robert C Whitten__ All PAPS CLIM 1361299886 23 WP? W.P? atnm chem, aerosolsex of NASA Ames, Moffat Field, CA
41TGGWSJIMM081609: Philip Stott__ All PAPS CLIM 37353029 23 WP? W.P? biogeographySOAS, U London (emeritus)
42CMOS06 CMOS08 1612: William Mark BuhayPhD All PAPS CLIM 39372927 23 WP? W.P? paleo, radiocarbon datingCtr for Forest Interdisciplinary Res., U Winnipeg, MB
43TGGWSJIMM081618: Nigel Calderno All PAPS CLIM 55432117 23 WP? W.P? ice ages, solar influenceauthor, screenwriter, former editor of New Scientist (no academic career)
44MHND CCC09 1673: George V Chilingar1956 All PAPS CLIM 58383728 20 WP? W.P? petroleum geology, sedimentsU Southern Calif, CA
45CMOS06 CMOS08 1684: John J Cullen1980 All PAPS CLIM 265205151121 19 WP? W.P? marine photosynthesis, ozone depletionDalhousie U, Halifax, NS
46noSw07 1797: Richard R Kirby__ All PAPS CLIM 20191715 12 WP? W.P? sea temperature and fish ecologyU Portsmouth
47  1798: Katherine L Moulton   __ All PAPS CLIM 69401511 12 WP? W.P? paleo - silicate weatheringYale U
48CA02 CA03 CA06 TGGWS UN07 MHND CCC09JIMM081848: Timothy BallPhD All PAPS CLIM 131098 10 WP? W.P? historical record, northern CanadaNat. Resources Stewardship Project (think tank)
49TGGWS 2097: Paul K DriessenJD All PAPS CLIM 11431 1 WP? W.P? criticism of environmental action groups author and columnist, former Senate staffer (no academic career)
50TGGWS MHND Cato09 NIPCC09 CCC09JIMM082104: Piers CorbynMSc All PAPS CLIM 2100 1 WP? W.P? meteorologyindep. Weather forecaster (no academic career)
51TGGWS UN07JIMM082217: Lord Nigel Lawsonno All PAPS CLIM 0000 0 WP? W.P? criticism of IPCC and Stern Review(no academic/research career)
52TGGWSJIMM082218: Patrick Moore1972 All PAPS CLIM 0000 0 WP? W.P? ecology; co-founder of Greenpeaceenvironmental activist (no academic/research career)
53MHND 2224: Josef ZborilMSc All PAPS CLIM 1000 0 WP? W.P? mettalurgyConfederation of Industry, Prague

Compiled by Jim Prall, Toronto, Canada, Nov. 2008 - present