John R. Christy
Credentials
- Ph.D. Atmospheric Science, University of Illinois (1987).1โAbout John: Education,โ University of Alabama in Huntsville. Archived April 10, 2023. Archive.is URL: https://archive.is/dfpXh
- M.S., Atmospheric Science, University of Illinois, (1984).2โAbout John: Education,โ University of Alabama in Huntsville. Archived April 10, 2023. Archive.is URL: https://archive.is/dfpXh
- M.Div. Golden Gate Baptist Theological Seminary (1978).3โAbout John: Education,โ University of Alabama in Huntsville. Archived April 10, 2023. Archive.is URL: https://archive.is/dfpXh
- B.A., Mathematics California State University, Fresno (1973).4โAbout John: Education,โ University of Alabama in Huntsville. Archived April 10, 2023. Archive.is URL: https://archive.is/dfpXh
Background
John R. Christy is a professor of Atmospheric Science and Director of the Earth System Science Center of the University of Alabama in Huntsville.5โAbout John,โ University of Alabama in Huntsville. Archive.is URL: https://archive.is/f4FU0 Christy has been Alabama State Climatologist since November, 2000.6โContact Us,โ Earth System Science Center. Archived November 15, 2012. Archive URL: https://archive.ph/wlOHd 7โAbout Us,โ The Alabama State Climatologist. Accessed September 15, 2016. Archive.is URL: https://archive.is/8i4u4
Christy is associated with climate change skeptic Roy Spencer, who is is best known for jointly developing a satellite temperature record. Christy also collaborated with Spencer on a George C. Marshall Institute Roundtable discussion on climate change in April 2006. Christy noted that the two of them had been described as โswimming upstream against the climate change debate.โ8โAbout John,โ University of Alabama in Huntsville. Archive.is URL: https://archive.is/f4FU0 9John Christy and Roy Spencer. โWASHINGTON ROUNDTABLE ON SCIENCE & PUBLIC POLICY: Satellite Temperature Dataโ (PDF), George C. Marshall Institute, April 17, 2006. Archived .pdf on file at Desmog.
John Christy has testified on numerous occasions against the mainstream scientific views on man-made climate change including testimony before the House Energy and Commerce Committee, House Committee on Government Reform, House Ways and Means Committee, and others.10โWritten Statement of John R. Christy The University of Alabama in Huntsville Subcommittee on Energy and Power Committee on Energy and Commerce 8 March 2011โ (PDF), The Energy and Commerce Committee, Subcommittee on Energy and Power, March 8, 2011. Archived .pdf on file at Desmog. 11Chris Mooney. โSo Now They Call in the Scientists?โ Desmog, March 7, 2011. 12โClimate Science and EPA’s Greenhouse Gas Regulations,โ House Energy & Commerce Committee, March 8, 2011. Archived March 16, 2011. Archive.is URL: https://archive.is/QOFTA
Stance on Climate Change
November 2007
Christy wrote in The Wall Street Journal:
โI’m sure the majority (but not all) of my IPCC colleagues cringe when I say this, but I see neither the developing catastrophe nor the smoking gun proving that human activity is to blame for most of the warming we see.โ13โMy Nobel moment.โ November 1, 2007. The Wall Street Journal. Archived .pdf on file at Desmog. Archive.is URL: https://archive.is/Qb9nu
Key Quotes
February 2016
โThe real world is not going along with rapid warming. The models need to go back to the drawing board.โ14โTestimony of John R. Christy University of Alabama in Huntsvilleโ (PDF), U.S. House Committee on Science, Space & Technology Feb 2, 2016. Archived .pdf on file at Desmog.
June 2015
โ[W]e are not morally bad people for taking carbon and turning it into the energy that offers life to humanity in a world that would otherwise be brutal (think of life before modernity). On the contrary, we are good people for doing so.โJ15ohn R. Christy. โAlabama climatologist Dr. John Christy questions Pope’s take on climate change: guest opinion,โ Alabama Local News, June 22, 2015. Archived July 3, 2015. Archive.is URL: https://archive.is/4LD36
April 2015
โCarbon dioxide makes things grow. The world used to have five times as much carbon dioxide as it does now. Plants love this stuff. It creates more food. CO2 is not the problem โฆ There is absolutely no question that carbon energy provides with longer and better lives. There is no question about that.โ16โ7 questions with John Christy and Roy Spencer: Climate change skeptics for 25 years,โ Alabama.com, April 1, 2015. Archived September 16, 2016. Archive.is URL: https://archive.is/WxjXu
August 2013
โI was at the table with three Europeans, and we were having lunch. And they were talking about their role as lead authors. And they were talking about how they were trying to make the report so dramatic that the United States would just have to sign that Kyoto Protocol.โ17โUN Scientists Who Have Turned on UNIPCC Man-Made Climate Fears – A Climate Depot Flashback Report,โ Climate Depot, August 21, 2013. Archive.is URL: https://archive.is/OOZPl
February 2013
โIf you choose to make regulations about carbon dioxide, thatโs OK. You as a state can do that; you have a right to do it. But itโs not going to do anything about the climate. And itโs going to cost, thereโs no doubt about that.โ18Nikki Wentling. โLegislature considering delays in renewable energy standards,โ Lawrence Journal World, February 5, 2013. Archive.is URL: https://archive.is/wM1zc
March 2011
โโฆit is fairly well agreed that the surface temperature will rise about 1ยฐC as a modest response to a doubling of atmospheric CO2 if the rest of the component processes of the climate system remain independent of this response.โ19John R. Christy’s testimony (PDF) to the Subcommittee Energy and Power on March 8, 2011. Archived .pdf on file at Desmog.
May 2009
โAs far as the AGU, I thought that was a fine statement because it did not put forth a magnitude of the warming. We just said that human effects have a warming influence, and that’s certainly true. There was nothing about disaster or catastrophe. In fact, I was very upset about the latest AGU statement [in 2007]. It was about alarmist as you can get.โ20Jon Birger. โWhat if global-warming fears are overblown?โ Fortune Magazine, May 14, 2009. Archived September 16, 2016. Archive.is URL: https://archive.is/1fxEV
February 2009
โWe utilize energy from carbon, not because we are bad people, but because it is the affordable foundation on which the profound improvements in our standard of living have been achieved โ our progress in health and welfare.โ21Written testimony (PDF) of John R. Christy at the House Ways and Means Committee, February 25, 2009. Archived .pdf on file at Desmog.
December 2003
In a 2003 interview with the San Francisco Chronicle, Christy describes himself as โ a strong critic of scientists who make catastrophic predictions of huge increases in global temperatures and tremendous rises in sea levels.โ22David Perlman. โEarth warming at faster pace, say top science group’s leaders / Statement by American Geophysical Union’s council warns temperature change is real and human-caused,โ SFGate, December 18, 2003. Archived September 16, 2016. Archive.is URL: https://archive.is/eYn4F
Christy also added:
โIt is scientifically inconceivable that after changing forests into cities, turning millions of acres into farmland, putting massive quantities of soot and dust into the atmosphere and sending quantities of greenhouse gases into the air, that the natural course of climate change hasn’t been increased in the past century.โ23David Perlman. โEarth warming at faster pace, say top science group’s leaders / Statement by American Geophysical Union’s council warns temperature change is real and human-caused,โ SFGate, December 18, 2003. Archived September 16, 2016. Archive.is URL: https://archive.is/eYn4F
Keyย Actions
February 11, 2022
Christy published a โ(largely) nontechnical reportโ based on an examination of โclimate metrics that are of interest to Alabamians.โ In the report, he claimed there were โno significant changes associated with the increasing concentrations of greenhouse gasesโ and โimportant Alabama climate variables.โ24John R. Christy. “A Practical Guide to Climate Change in Alabama” (PDF), January 20, 2022. Retrieved from The Alabama State Climatologist (nsstc.uah.edu/aosc). Archived .pdf on file at DeSmog.
โThe latest theoretical climate model simulations have been unable to replicate the types of changes in climate variables that Alabama has experienced since the late 19th century and so offer little guidance for the future,โ Christy claimed in the guide.
September 2020
Talking to E&E News after the recent appointment of David Legates and Ryan Maue in positions at the U.S. National Oceanic and Atmospheric Administration (NOAA), Christy told E&E News that he had been previously offered a position working at NOAA under the Trump administration.25Scott Waldman. โTrump White House recruited climate science critics to work at NOAA,โ E&E News, September 28, 2020. Republished by Science. Archived October 27, 2020. Archive URL:https://archive.vn/BwWg7
โThe pitch was I would have new influence on the future direction of the agency,โ Christy told E&E. He said if he had accepted the job, he would โredirect money from the climate modeling project into the weather modeling project.โ He was unable to take the position due to academic commitments.26Scott Waldman. โTrump White House recruited climate science critics to work at NOAA,โ E&E News, September 28, 2020. Republished by Science. Archived October 27, 2020. Archive URL:https://archive.vn/BwWg7
Christy had passed the offer on to Judith Curry, however she also declined.27Scott Waldman. โTrump White House recruited climate science critics to work at NOAA,โ E&E News, September 28, 2020. Republished by Science. Archived October 27, 2020. Archive URL:https://archive.vn/BwWg7
May 8, 2019
Christy gave a presentation to the UK-based climate science denial group the Global Warming Policy Forum, a transcript of which was published on its website under the title โPutting Climate Change Claims to the Testโ. In the talk, Christy said:28Dr John Christy. โPutting Climate Change Claims to the Test,โ Global Warming Policy Forum, June 18, 2019. Archived June 20, 2019. Archive.fo URL: https://archive.fo/s2pOy
โThe weather we really care about isnโt changing, and Mother Nature has many ways on her own to cause her climate to experience considerable variations in cycles. If you think about how many degrees of freedom are in the climate system, what a chaotic nonlinear, dynamical system can do with all those degrees of freedom, you will always have record highs, record lows, tremendous storms and so on. Thatโs the way that system is.โ29Dr John Christy. โPutting Climate Change Claims to the Test,โ Global Warming Policy Forum, June 18, 2019. Archived June 20, 2019. Archive.fo URL: https://archive.fo/s2pOy
January 31, 2019
Acting EPA Administrator Andrew Wheeler appointed Christy to the agencyโs Science Advisory Board, putting him in position to take an active role in guiding agency policies and regulations.30Timothy Cama. โEPA puts climate change skeptic, conservative think tank scholar on science board,โ The Hill, January 31, 2019. Archived February 1, 2019. Archve.is URL: http://archive.is/7HvrZ 31โMembers of the Science Advisory Board.โ EPA.gov. Accessed February 1, 2019. Archived February 1, 2019. Archive.is URL: http://archive.is/tabOz
May 2017
John Abraham, a professor of thermal science, writes at The Guardian about additional errors identified in Roy Spencer and John Christy’s temperature estimates. According to Abraham, Spencer and Christy’s claims that troposphere and stratosphere temperatures have not been rising are wrong:32John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
โThey errantly include stratosphere temperatures in their lower atmosphere readings; and they have incorrect temperature calibration on the satellites,โ Abraham writes.33John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
He also points to a recent paper that had questioned Christy and Spencer’s decision to use preliminary data in their congressional testimony while it was still in the peer review stage:34John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
โAt present, the UAH v6 (most recent Christy/Spencer data) results are preliminary and a fifth revision has now been released as v6beta5 (Spencer 2016). The release of the UAH version 6 products before publication is unusual, and Spencer recently stated that a manuscript has been submitted for a peer-reviewed publication. While some may find it scientifically inappropriate to utilize UAH v6b6 data before publication, these data have already been presented in testimony during congressional hearings before both the U.S. House and Senate and have also appeared on websites and in public print articles,โ Abraham quotes the January 207 paper.35John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
Abraham adds, โletโs not be deluded into thinking these satellites are more accurate than thermometers (as some people suggest).โ36John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
March 29, 2017
John Christy was a witness in a house committee hearing titled โClimate Science: Assumptions, Policy Implications, and the Scientific Methodโ chaired by Lamar Smith.37โClimate Science: Assumptions, Policy Implications, and the Scientific Method,โ House Committee on Science, Space, & Technology, March 29, 2017. Archived March 31, 2017. Archived .mp4 on file at DeSmog. The hearing also featuring testimony from Judith Curry, Michael Mann, and Roger Pielke, Jr. DeSmog reported that the House Committee on Science, Space and Technology hearings โhave officially turned into theater to stage climate science denial,โ noting that Michael Mann was the only witness on the committee to represent the 97% consensus view that humans cause climate change.38Ben Jervey. โHouse Science Committee Hearing Pits Three Fringe Climate Deniers Against Mainstream Climate Scientist Michael Mann,โ DeSmog, March 29, 2017.
Officially, the hearing was organized to โexamine the scientific method and process as it relates to climate changeโ and โfocus on the underlying science that helps inform policy decisions.”39Ben Jervey. โHouse Science Committee Hearing Pits Three Fringe Climate Deniers Against Mainstream Climate Scientist Michael Mann,โ DeSmog, March 29, 2017.
Rep. Suzanne Bonamici, a Democrat from Oregon, noted from the outset that โThe witness panel does not really represent the vast majority of climate scientists.โ For an accurate representation of the science, she said to โVisualize 96 more climate scientists that agree with the mainstream consensus. [โฆ] For a balanced panel weโd need 96 more Dr. Manns.โ40โClimate Science: Assumptions, Policy Implications, and the Scientific Method,โ House Committee on Science, Space, & Technology, March 29, 2017. Archived March 31, 2017. Archived .mp4 on file at DeSmog.
The Global Warming Policy Foundation (GWPF) published the written testimonies by Curry, Christy, Mann, and Pielke online.41โCLIMATE SCIENCE: Assumptions, policy implications, and the scientific methodโ (PDF), Global Warming Policy Foundation (Report 24). Archived .pdf on file at DeSmog.
February 2, 2016
John R. Christy testified at a Congressional hearing, where he claims that climate change models should not be trusted.42Paul Gatis. โClimate expert John Christy to Congress: ‘I would not trust model projections‘,โ Alabama.com, February 3, 2016. Archived September 16, 2016. Archive.is URL: https://archive.is/YmKK0
โI would not trust model projections on which all policy is based here because they just don’t match facts,โ said Christy. โThe message here is very simple โ the theory does not match the observations as measured independently by both satellites and balloons.โ43Paul Gatis. โClimate expert John Christy to Congress: ‘I would not trust model projections‘,โ Alabama.com, February 3, 2016. Archived September 16, 2016. Archive.is URL: https://archive.is/YmKK0
When asked about extreme weather events, Christy also downplays the influence of man-made climate change:
โThere’s a little bit of hyperbole in things that people see changing right now,โ Christy said. โThey’ve always changed, I suspect.โ44Paul Gatis. โClimate expert John Christy to Congress: ‘I would not trust model projections‘,โ Alabama.com, February 3, 2016. Archived September 16, 2016. Archive.is URL: https://archive.is/YmKK0
Christy offers the following summary in his full written testimony (PDF) is also available. Full video of the hearing below.45โTestimony of John R. Christy University of Alabama in Huntsvilleโ (PDF), U.S. House Committee on Science, Space & Technology Feb 2, 2016. Archived .pdf on file at Desmog.
โThe messages of the two points outlined in the extract above are: (1) the claims about increases in frequency and intensity of extreme events are generally not supported by actual observations and, (2) official information about climate science is largely controlled by agencies through (a) funding choices for research and (b) by the carefullyselected (i.e. biased) authorship of reports such as the EPA Endangerment Finding and the National Climate Assessment.โ
December 8, 2015
Set to coincide with the Paris COP21 (Conference of the Parties), John Christy testified at a hearing of the Subcommittee on Space, Science, and Competitiveness convened by U.S. Sen. Ted Cruz (R-Texas) titled โData or Dogma? Promoting Open Inquiry in the Debate over the Magnitude of Human Impact on Earthโs Climate.โ46โData or Dogma? Promoting Open Inquiry in the Debate over the Magnitude of Human Impact on Earthโs Climateer,โ U.S. Senate Committee on Commerce, Science, & Transportation. Archived December 4, 2015. Archive.is URL: https://archive.is/9SbTE
Christy suggests that a climate โRed Teamโ be developed which would โproduce an assessment that expresses legitimate, alternative hypothesesโ for climate change. John Christy’s full testimony document is available here (PDF).47โTestimony of John R. Christyโ (PDF), U.S. Senate Committee on Commerce, Science, & Transportation Subcommittee on Space, Science and Competitiveness, Dec 8 2015. Archived .pdf on file at DeSmog.
According to the event description, the hearing will focus on โthe ongoing debate over climate science, the impact of federal funding on the objectivity of climate research, and the ways in which political pressure can suppress opposing viewpoints in the field of climate science.โ48โData or Dogma? Promoting Open Inquiry in the Debate over the Magnitude of Human Impact on Earthโs Climateer,โ U.S. Senate Committee on Commerce, Science, & Transportation. Archived December 4, 2015. Archive.is URL: https://archive.is/9SbTE
Other listed witnesses include:
- Dr. Judith Curry
- Dr. William Happer
- Mr. Mark Steyn
- Dr. David Titley (Rear Admiral, USN (ret.)
June 2015
In response to the release of Pope Francis’s Encyclical on the Environment, John R. Christy published an opinion piece suggesting that burning fossil fuels is actually a good thing:49John R. Christy. โAlabama climatologist Dr. John Christy questions Pope’s take on climate change: guest opinion,โ Alabama Local News, June 22, 2015. Archived July 3, 2015. Archive.is URL: https://archive.is/4LD36
โ[W]e are not morally bad people for taking carbon and turning it into the energy that offers life to humanity in a world that would otherwise be brutal (think of life before modernity). On the contrary, we are good people for doing so,โ Christy said.50John R. Christy. โAlabama climatologist Dr. John Christy questions Pope’s take on climate change: guest opinion,โ Alabama Local News, June 22, 2015. Archived July 3, 2015. Archive.is URL: https://archive.is/4LD36
Christy concludes that carbon becomes a โpositive moral imperative to consider.โ51John R. Christy. โAlabama climatologist Dr. John Christy questions Pope’s take on climate change: guest opinion,โ Alabama Local News, June 22, 2015. Archived July 3, 2015. Archive.is URL: https://archive.is/4LD36
April 2015
John Christy and Roy Spencer were the subject of an interview with Alabama.com.52โ7 questions with John Christy and Roy Spencer: Climate change skeptics for 25 years,โ Alabama.com, April 1, 2015. Archived September 16, 2016. Archive.is URL: https://archive.is/WxjXu According to The Guardian, which describes the interview as โrevealing,โ Christy offers an inaccurate response on the 97% consensus on human-caused global warming:53Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
โThe American Meteorological Society did their survey and they specifically asked the question, Is man the dominate controller of climate over the last 50 years? Only 52 percent said yes. That is not a consensus at all in science โฆ Roy and I have both made the statement that we are in the 97 percent because we believe in some (man-made) effect.โ54Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
While Spencer and Christy claim to be oart of the 97%, The Guardian argues that they are now:
โSpencer and Christy each authored five papers captured in our climate science literature survey. Among those papers, we classified one of Spencerโs and two of Christyโs as minimizing or rejecting the human influence on global warming, and the others as not taking a position on the issue.
That makes both of them authors of the less than 3% of peer-reviewed climate science papers rejecting the consensus on human-caused global warming. This is an indisputable fact โ the 97% consensus figure is based on our teamโs categorization of the scientific literature, and we put their research outside the 97% consensus.โ55Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
Below are some other notable quotes pulled from the Alabama.com interview, including Spencer and Christy’s take on government agencies and fossil fuel interests:
โNASA, NOAA, EPA, DOE, those are agencies. Agency leaders are appointed by the government, by the current administration. They do not represent objective independent scientific organizations,โ Christy said. โThey canโt. They are appointed by the head. They try. People who come out with different views in their organizations are found to be squashed. There is an agenda in those agencies โฆ There are skeptics in NASA and NOAA, a good number. But they are quiet. They know in this administration, they donโt speak out.56Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
Discussing fossil fuels, Christy repeats the common denier argument that more CO2 will boost plant growth:
โCarbon dioxide makes things grow. The world used to have five times as much carbon dioxide as it does now. Plants love this stuff. It creates more food. CO2 is not the problem โฆ There is absolutely no question that carbon energy provides with longer and better lives. There is no question about that.โ57Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
January 8, 2014
John Christy was part of a โreview workshopโ chaired by Steve Koonin on the American Physical Society’s climate change statement. Ben Santer, a climate researcher at Lawrence Livermore National Laboratory, later described the exercise as similar to โred-team, blue-teamโ exercises that Koonin advocated in the future. Santer was a member of the โblue teamโ in the APS exercise, along with Isaac Held from the Geophysical Fluid Dynamics Lab and Bill Collins from UC Berkeley and Lawrence Berkeley National Laboratory. The โred teamโ members opposing established climate science were Richard Lindzen, John Christy, and Judith Curry.58โAMERICAN PHYSICAL SOCIETY 4 CLIMATE CHANGE STATEMENT REVIEW WORKSHOPโ (PDF), American Physical Society, January 8, 2014. Archived .pdf on file at DeSmog.
โI did not think that the red team arguments were successful,โ Santer commented in 2017.59โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
โFor example, John Christy showed this figure, A not equal to B, and was asked by one of the physicists in the room, well, why? Why, Professor Christy, what’s going on? How do you explain this divergence in warming rates between the models and the observations? What’s going on there? And John, Christy shrugged his shoulders and said Mother Nature’s going to do what Mother Nature’s going to do.โ
According to the APS proceedings transcript, Christy had commented on the models as follows:60โAMERICAN PHYSICAL SOCIETY 4 CLIMATE CHANGE STATEMENT REVIEW WORKSHOPโ (PDF), American Physical Society, January 8, 2014. Archived .pdf on file at DeSmog.
โMy comment to the committee when something like that was asked to me a month ago was, ‘Mother Nature has within her all the necessary tools to generate extreme events that exceed what we have seen in the past 50 years.’ So, whatever we have seen out there, Mother Nature already has the ability to do it.โ
Santer added: โJohn Christy was not interested in understanding the why. Why are there these differences in warming rate in the early twenty first century that really aren’t there in the late 20th century? What’s going on? That’s where the science is. That’s what you want to know. The why the understanding and his answer to that question was Mother Nature’s going to do what Mother Nature’s going to do. He made no attempt to provide an explanation as to what he thought physically was going on there. And that was that was telling.โ61โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
Santer suggested another โtellingโ moment was when all of the team members were asked if isotope data supported the conclusion that about 75% of the increase in atmospheric CO2 since the Industrial Revolution was due to the burning of fossil fuels, and Christy was the only member who disagreed.62โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
โOf course, those isotopic measurements have been made by labs around the world. You know, it’s very, very well established science. But John Christie did not agree. And when Professor Koonin asked him, well, why don’t you agree? John Christie said, because I did not make the measurements myself. And again, you could sort of see the amazement in in the room, the the import of that statement is that I am not going to trust anyone else, no measurements unless I’ve made them myself.โ63โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
Santer concluded:
โSo the red the red team lost, the red team was not convincing to the members of the American Physical Society, Steve Koonin stepped down as chair of this subcommittee charged with updating the statement. And now he’s calling for the same red team blue team process, even though the process that he presided over. Did not yield a result that that he liked, that he was comfortable with.โ64โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
December 11, 2013
John Christy joined climate change denier Roger Pielke Jr. to testify before the US Congress Committee on Science, Space, and Technology, chaired by Lamar Smith. After their testimony, Chairman Smith summarized that โThe fact is there is little evidence that climate change causes extreme weather events.โ65(Press Release). โLittle Evidence Linking Climate Change to Extreme Weather Events,โ Committee on Science, Space, and Technology, December 11, 2013. Archived December 30, 2013. Archive.is URL: https://archive.is/oBSQV
According toThe Guardian, โ Unfortunately, like many such hearings, the purpose of the event appeared to be more about reinforcing preconceived notions than educating committee members. This was made clear by a simple examination of the invited witnesses.โ Christy’s opening statement was a often-used climate denier myth: โAs the global temperature failed to warm over the past 15 yearsโฆโ66Dana Nuccitelli. โRepublicans in Congress got the testimony they wanted to keep playing climate Russian roulette,โ The Guardian, December 26, 2013. Archive.is URL: https://archive.is/geX5X
February 14, 2012
Christy released a study that claimed snowfall in the Sierra Nevada has remained consistent for 130 years, with no noticeable effect from climate change.67Peter Fimrite. โStudy: Sierra snowfall consistent over 130 years,โ San Francisco Chronicle, February 15, 2012. Archive.is URL: https://archive.is/Vfdae
James Taylor of the Heartland Institute penned a Forbes article where he claimed that Christy’s findings โrefute frequent assertions by global warming alarmists that global warming is adversely affecting Sierra Nevada snowfall and snowpack.โ The climate change skeptic blog Watts Up With That also publicized the story.68James Taylor. โDear Global Warming Alarmists: We’re Still Waiting for Declining Snowfall,โ Forbes, February 29, 2012. Archive.is URL: https://archive.is/q8vDK
When asked about the reaction to his paper, Christy said โIn general, it depends on what religion you have. If you believe Man is doing horrible things to the planet, then you canโt believe this report. If you believe the other way, then this is a chapter in your bible.โ
David Pearce, one of John Christy’s colleagues, feels that Christy has gone beyond the data in his study, and that Christy is making claims in the media that have not been backed up by the study itself. Pearce adds that it โis unfortunate because peer-review is the process that filters out unsupported personal opinion from what is backed by evidence.โ69Mark Robison. โNews analysis: Does Sierra snow study buck fears of warming?,โ Reno Gazette-Journal, April 7, 2012. Republished by Lake Tahoe News (Original no longer available online). Archived September 15, 2016. Archive.is URL: https://archive.is/f8a7n
March 8, 2011
John R. Christy testified (PDF)70โWritten Statement of John R. Christy The University of Alabama in Huntsville Subcommittee on Energy and Power Committee on Energy and Commerce 8 March 2011โ (PDF), The Energy and Commerce Committee, Subcommittee on Energy and Power, March 8, 2011. Archived .pdf on file at Desmog. at a hearing hosted by the Energy and Power Subcommittee to discuss โClimate Science and EPA‘s Greenhouse Gas Regulations.โ71โWritten Statement of John R. Christy The University of Alabama in Huntsville Subcommittee on Energy and Power Committee on Energy and Commerce 8 March 2011โ (PDF), The Energy and Commerce Committee, Subcommittee on Energy and Power, March 8, 2011. Archived .pdf on file at Desmog. 72Chris Mooney. โSo Now They Call in the Scientists?โ Desmog, March 7, 2011. 73โClimate Science and EPA’s Greenhouse Gas Regulations,โ House Energy & Commerce Committee, March 8, 2011. Archived March 16, 2011. Archive.is URL: https://archive.is/QOFTA
Christy concluded that โif the country deems it necessary to de-carbonize civilization’s main energy sources, sound and indeed compelling reasons beyond human-induced climate change need to be offered. Climate change alone is a weak leg on which to stand for such a massive undertaking.โ74โWritten Statement of John R. Christy The University of Alabama in Huntsville Subcommittee on Energy and Power Committee on Energy and Commerce 8 March 2011โ (PDF), The Energy and Commerce Committee, Subcommittee on Energy and Power, March 8, 2011. Archived .pdf on file at Desmog.
February 25, 2009
Testified (PDF) before the House Ways and Means Committee at the โHearing on Scientific Objectives for Climate Change Legislation.โ75โHouse Ways and Means Committee 25 February 2009 Written Testimony John R. Christy, University of Alabama in Huntsville,โ House Ways and Means Committee, February 25, 2009. Archived .pdf on file at Desmog. 76โSummary of Hearings on Climate Change (12/7/10),โ American Geosciences Institute, December 7, 2010. Archive.is URL: https://archive.is/UwlBh
The American Geosciences Institute offers a summary of Christy’s testimony:
โDr. John Christy was skeptical whether there was any way for the U.S. to make detectable changes in global warming. He feared that the scale of carbon emissions is ‘simply too enormous,’ and the only possible solution is to start a large nuclear energy campaign. According to Christy, ‘The actions being considered to โstop global warmingโ will have an imperceptible impact on whatever the climate will do, while making energy more expensive, and thus have a negative impact on the economy as a whole’.โ77โSummary of Hearings on Climate Change (12/7/10),โ American Geosciences Institute, December 7, 2010. Archive.is URL: https://archive.is/UwlBh
One source responded to Christy’s testimony, concluding that โJohn Christy has added to the science of atmospheric modeling, but he has undercut his credibility by making claims far exceeding his data and by ignoring findings that disagree with his arguments. Then he sins by distorting his testimony for a purely political agenda.โ78โUAH’s John Christy’s US House Ways & Means Committee testimonyโฆ examined,โ Citizens’ Challenge, January 8, 2011. Archive.is URL: https://archive.is/bHBqV
May 2, 2007
Appeared on the Glenn Beck Special, โExposed: The Climate of Fear.โ Other prominent climate skeptics featured in the film included:79โExposed: The Climate of Fear,โ CNN.com, 2007. Archived video on file at Desmog. Archive.is URL: https://archive.is/X4oYk
- Tim Ball,
- Patrick Michaels,
- Patrick Moore,
- Chris Horner,
- Bjorn Lomborg,
- George Taylor,
- David Legates,
- and Roy Spencer.
March 8, 2007
Christy appeared in The Great Global Warming Swindle documentary.80โThe Great Global Warming Swindle Full Movie,โ YouTube Video uploaded by user Apollo, April 2, 2014. Archived video on file at Desmog.
The Great Global Warming Swindle also starred fellow skeptics:
- Tim Ball, Roy Spencer,
- Fred Singer,
- Pat Michaels,
- Nir Shaviv,
- Nigel Lawson,
- Ian Clark,
- Piers Corbyn,
- Philip Stott,
- Paul Reiter,
- Richard Lindzen,
- Patrick Moore,
- Patrick Michaels,
- Syun-Ichi Akasofu,
- Fred Singer,
- Paul Driessen, and others.
July 27, 2006
John R. Christy testified (PDF) at a hearing hosted by the House Committee on Energy and Commerce on the subject of โQuestions Surrounding the ‘Hockey Stick’ Temperature Studies: Implications for Climate Change Assessments Part II.81โTestimony of John R. Christy, Ph.D. (PDF), House Committee on Energy and Commerce Subcommittee on Oversight and Investigations, July 27, 2006. Archived .pdf on file at DeSmog. 82โSummary of Hearings on Climate Change (12-8-06),โ American Geosciences Institute, December 8, 2006. Archive.is URL: https://archive.is/5ju6Z
Christy cites his previous studies that concluded โgreenhouse gases are increasing in concentration is clearly true and therefore the radiation budget of the atmosphere will be altered. In response, the surface temperature should rise due to this additional forcing. In our observational work however, we have not been able to show clear support for the manner or magnitude of this response as has been depicted by the present set of climate models (Christy, 2002, Christy et al. 2006a, Christy and Norris 2006, Christy et al. 2006b).โ83Testimony of John R. Christy, Ph.D. (PDF), House Committee on Energy and Commerce Subcommittee on Oversight and Investigations, July 27, 2006. Archived .pdf on file at DeSmog.
July 20, 2006
Testified before the House Committee on Government Reform in a Hearing titled โClimate Change: Understanding the Degree of the Problem.โ84โSummary of Hearings on Climate Change (12-8-06),โ American Geosciences Institute, December 8, 2006. Archive.is URL: https://archive.is/5ju6Z
April 17, 2006
John Christy and Roy Spencer presented at the George C. Marshall Institute’s Washington Roundtable on Science and Public Policy to discuss โSatellite Temperature Dataโ (PDF).85John Christy and Roy Spencer. โWASHINGTON ROUNDTABLE ON SCIENCE & PUBLIC POLICY: Satellite Temperature Dataโ (PDF), George C. Marshall Institute, April 17, 2006. Archived .pdf on file at Desmog.
According to the event moderator William O’Keefe, Spencer and Christy โpioneered the work in satellite measurements of the earthโs temperature.โ
โSomeone described Roy and me as โswimming upstream against the climate change debate’,โ Christy said in his introduction. โI corrected him on the air and said we are not swimming upstream; we are just swimming downstream a lot more slowly than everyone else. I reminded him that those who swim the fastest downstream always end up getting to the money and the media first.โ
The presentation was followed with a Q&A session with Spencer and Christy. Christy argues that it would not be possible to measure the benefits of any carbon-dioxide-reducing regulations, as โ the scientific answer is you cannot detect the effect of such a regulation. Except perhaps in economic indicators, where you might see some downturn. But in terms of the climate, we could not detect such an effect.โ86John Christy and Roy Spencer. โWASHINGTON ROUNDTABLE ON SCIENCE & PUBLIC POLICY: Satellite Temperature Dataโ (PDF), George C. Marshall Institute, April 17, 2006. Archived .pdf on file at Desmog.
โI showed some evidence that humans are causing warming in the surface measurements that we have, but it is not the greenhouse relation,โ Christy said. โAre we going to return the Central Valley to a desert? Are we going to tell all the people in Africa they cannot burn wood anymore? Well, we could if we gave them coal-fired electricity, I suppose, which would be better for the environment because their forests are being destroyed. The habitat for the wild animals is going away because these people are chopping down the forests to survive.โ87John Christy and Roy Spencer. โWASHINGTON ROUNDTABLE ON SCIENCE & PUBLIC POLICY: Satellite Temperature Dataโ (PDF), George C. Marshall Institute, April 17, 2006. Archived .pdf on file at Desmog.
August 12, 2005
According to a New York Times article, John Christy along with fellow skeptic Roy Spencer admitted they made a mistake in their satellite data research that they said demonstrated a cooling in the troposphere (the earth’s lowest layer of atmosphere). It turned out that the exact opposite was occurring and the troposphere was getting warmer.88Andrew C. Revkin. โErrors Cited in Assessing Climate Data,โ The New York Times, August 12, 2005. Archive.is URL: https://archive.is/zfd3D
โThese papers should lay to rest once and for all the claims by John Christy and other global warming skeptics that a disagreement between tropospheric and surface temperature trends means that there are problems with surface temperature records or with climate models,โ said Alan Robock, a meteorologist at Rutgers University.89Andrew C. Revkin. โErrors Cited in Assessing Climate Data,โ The New York Times, August 12, 2005. Archive.is URL: https://archive.is/zfd3D
July 28, 2003
John Christy was a co-author of the Independent Institute report โNew Perspectives in Climate Change: What the EPA Isn’t Telling Usโ that criticized the EPA‘s 2001 Climate Action Report.90S. Fred Singer, John R. Christy, Robert E. Davis, David R. Legates, Wendy M. Novicoff. โNew Perspectives on Climate Change: What the EPA Isn’t Telling Us,โ (PDF), The Independent Institute, July 2003. Archived .pdf on file at Desmog.
Other authors of the report included S. Fred Singer, Robert E. Davis, David R. Legates, and Wendy M. Novicoff. The report accused The IPCC‘s 2001 assessment on climate change of being โmisleading, inaccurate, unreliable, or simply wrong.โ91S. Fred Singer, John R. Christy, Robert E. Davis, David R. Legates, Wendy M. Novicoff. โNew Perspectives on Climate Change: What the EPA Isn’t Telling Us,โ (PDF), The Independent Institute, July 2003. Archived .pdf on file at Desmog.
December 12, 2003
Spoke at an event hosted by the Cato Institute titled โGlobal Warming: The State of the Debate.โ92โGlobal Warming: The State of the Debate,โ Cato Institute. Archived June 15, 2006. Archive.is URL: https://archive.is/9snGF
According tot he Cato Institute, the event summarizes โwhat is known about the science and economics surrounding greenhouse gas concentrations and abatement. Moreover, it tackles squarely what is perhaps the most relevant policy issue at the momentโthe potential costs and benefits involved in dealing with scientific uncertainty.โ
Affiliations
- Heartland Institute โ โExpert.โ93โJohn Christy,โ The Heartland Institute. Archived September 15, 2016. Archive.is URL: https://archive.is/3z4HO
- Cato Institute โ Speaker at a Cato-sponsored event on global warming.94โGlobal Warming: The State of the Debate,โ Cato Institute. Archived June 15, 2006. Archive.is URL: https://archive.is/9snGF
- Competetive Enterprise Institute (CEI) โ โContributor.โ95โDr. John R. Christy,โ Competitive Enterprise Institute. Archived September 16, 2016. Archive.is URL: https://archive.is/hkHq8
- Independent Institute โ On Institute’s โPanel on Global Warming.โ96(Press Release).โNationโs Leading Global Warming Experts Unveil New Findings on Climate Change,โ The Independent Institute, July 28, 2003. Archive.is URL: https://archive.is/cxft2
Publications
Some sample publications (not a complete list) by John R. Christy below:
- Christy, J.R. โWhen was the hottest summer? A state climatologist struggles for an answer.โ Bull. Amer. Meteor. Soc., 83, 723-734. 2002.
- Christy, J.R. and R.W. Spencer. โCorrecting temperature data sets.โ Science, 310, 972. 2005.
- Christy, J.R., W.B. Norris, K. Redmond and K.P. Gallo. โMethodology and results of calculating Central California surface temperature trends: Evidence of human-induced climate change.โ J. Climate, 19, 548-563. 2006.
- Christy, J.R. and W.B. Norris. โSatellite and VIZ radiosondes intercomparison for diagnosis of non-climatic influences.โ J. Atmos. Oc. Tech. 2006
- Christy, J.R., W.B. Norris, R.W. Spencer and J.J. Hnilo. โTropospheric temperature change since 1979 from tropical radiosonde and satellite measurements.โ J. Geophys. Res.2006.
- S. Fred Singer, John R. Christy, Robert E. Davis, David R. Legates, Wendy M. Novicoff. โNew Perspectives on Climate Change: What the EPA Isn’t Telling Us.โ The Independent Institute.
- โSatellite Temperature Data.โ George C. Marshall Institute. Transcript from the Marshall Institute’s Washington Roundtable on Science and Public Policy. April 17, 2006.
Other Resources
Resources
- 1โAbout John: Education,โ University of Alabama in Huntsville. Archived April 10, 2023. Archive.is URL: https://archive.is/dfpXh
- 2โAbout John: Education,โ University of Alabama in Huntsville. Archived April 10, 2023. Archive.is URL: https://archive.is/dfpXh
- 3โAbout John: Education,โ University of Alabama in Huntsville. Archived April 10, 2023. Archive.is URL: https://archive.is/dfpXh
- 4โAbout John: Education,โ University of Alabama in Huntsville. Archived April 10, 2023. Archive.is URL: https://archive.is/dfpXh
- 5โAbout John,โ University of Alabama in Huntsville. Archive.is URL: https://archive.is/f4FU0
- 6โContact Us,โ Earth System Science Center. Archived November 15, 2012. Archive URL: https://archive.ph/wlOHd
- 7โAbout Us,โ The Alabama State Climatologist. Accessed September 15, 2016. Archive.is URL: https://archive.is/8i4u4
- 8โAbout John,โ University of Alabama in Huntsville. Archive.is URL: https://archive.is/f4FU0
- 9John Christy and Roy Spencer. โWASHINGTON ROUNDTABLE ON SCIENCE & PUBLIC POLICY: Satellite Temperature Dataโ (PDF), George C. Marshall Institute, April 17, 2006. Archived .pdf on file at Desmog.
- 10โWritten Statement of John R. Christy The University of Alabama in Huntsville Subcommittee on Energy and Power Committee on Energy and Commerce 8 March 2011โ (PDF), The Energy and Commerce Committee, Subcommittee on Energy and Power, March 8, 2011. Archived .pdf on file at Desmog.
- 11Chris Mooney. โSo Now They Call in the Scientists?โ Desmog, March 7, 2011.
- 12โClimate Science and EPA’s Greenhouse Gas Regulations,โ House Energy & Commerce Committee, March 8, 2011. Archived March 16, 2011. Archive.is URL: https://archive.is/QOFTA
- 13โMy Nobel moment.โ November 1, 2007. The Wall Street Journal. Archived .pdf on file at Desmog. Archive.is URL: https://archive.is/Qb9nu
- 14โTestimony of John R. Christy University of Alabama in Huntsvilleโ (PDF), U.S. House Committee on Science, Space & Technology Feb 2, 2016. Archived .pdf on file at Desmog.
- 15ohn R. Christy. โAlabama climatologist Dr. John Christy questions Pope’s take on climate change: guest opinion,โ Alabama Local News, June 22, 2015. Archived July 3, 2015. Archive.is URL: https://archive.is/4LD36
- 16โ7 questions with John Christy and Roy Spencer: Climate change skeptics for 25 years,โ Alabama.com, April 1, 2015. Archived September 16, 2016. Archive.is URL: https://archive.is/WxjXu
- 17โUN Scientists Who Have Turned on UNIPCC Man-Made Climate Fears – A Climate Depot Flashback Report,โ Climate Depot, August 21, 2013. Archive.is URL: https://archive.is/OOZPl
- 18Nikki Wentling. โLegislature considering delays in renewable energy standards,โ Lawrence Journal World, February 5, 2013. Archive.is URL: https://archive.is/wM1zc
- 19John R. Christy’s testimony (PDF) to the Subcommittee Energy and Power on March 8, 2011. Archived .pdf on file at Desmog.
- 20Jon Birger. โWhat if global-warming fears are overblown?โ Fortune Magazine, May 14, 2009. Archived September 16, 2016. Archive.is URL: https://archive.is/1fxEV
- 21Written testimony (PDF) of John R. Christy at the House Ways and Means Committee, February 25, 2009. Archived .pdf on file at Desmog.
- 22David Perlman. โEarth warming at faster pace, say top science group’s leaders / Statement by American Geophysical Union’s council warns temperature change is real and human-caused,โ SFGate, December 18, 2003. Archived September 16, 2016. Archive.is URL: https://archive.is/eYn4F
- 23David Perlman. โEarth warming at faster pace, say top science group’s leaders / Statement by American Geophysical Union’s council warns temperature change is real and human-caused,โ SFGate, December 18, 2003. Archived September 16, 2016. Archive.is URL: https://archive.is/eYn4F
- 24John R. Christy. “A Practical Guide to Climate Change in Alabama” (PDF), January 20, 2022. Retrieved from The Alabama State Climatologist (nsstc.uah.edu/aosc). Archived .pdf on file at DeSmog.
- 25Scott Waldman. โTrump White House recruited climate science critics to work at NOAA,โ E&E News, September 28, 2020. Republished by Science. Archived October 27, 2020. Archive URL:https://archive.vn/BwWg7
- 26Scott Waldman. โTrump White House recruited climate science critics to work at NOAA,โ E&E News, September 28, 2020. Republished by Science. Archived October 27, 2020. Archive URL:https://archive.vn/BwWg7
- 27Scott Waldman. โTrump White House recruited climate science critics to work at NOAA,โ E&E News, September 28, 2020. Republished by Science. Archived October 27, 2020. Archive URL:https://archive.vn/BwWg7
- 28Dr John Christy. โPutting Climate Change Claims to the Test,โ Global Warming Policy Forum, June 18, 2019. Archived June 20, 2019. Archive.fo URL: https://archive.fo/s2pOy
- 29Dr John Christy. โPutting Climate Change Claims to the Test,โ Global Warming Policy Forum, June 18, 2019. Archived June 20, 2019. Archive.fo URL: https://archive.fo/s2pOy
- 30Timothy Cama. โEPA puts climate change skeptic, conservative think tank scholar on science board,โ The Hill, January 31, 2019. Archived February 1, 2019. Archve.is URL: http://archive.is/7HvrZ
- 31โMembers of the Science Advisory Board.โ EPA.gov. Accessed February 1, 2019. Archived February 1, 2019. Archive.is URL: http://archive.is/tabOz
- 32John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
- 33John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
- 34John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
- 35John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
- 36John Abraham. โMore errors identified in contrarian climate scientists’ temperature estimates,โ The Guardian, May 11, 2017. Archived May 12, 2017. Archive.is URL: https://archive.is/2bqE3
- 37โClimate Science: Assumptions, Policy Implications, and the Scientific Method,โ House Committee on Science, Space, & Technology, March 29, 2017. Archived March 31, 2017. Archived .mp4 on file at DeSmog.
- 38Ben Jervey. โHouse Science Committee Hearing Pits Three Fringe Climate Deniers Against Mainstream Climate Scientist Michael Mann,โ DeSmog, March 29, 2017.
- 39Ben Jervey. โHouse Science Committee Hearing Pits Three Fringe Climate Deniers Against Mainstream Climate Scientist Michael Mann,โ DeSmog, March 29, 2017.
- 40โClimate Science: Assumptions, Policy Implications, and the Scientific Method,โ House Committee on Science, Space, & Technology, March 29, 2017. Archived March 31, 2017. Archived .mp4 on file at DeSmog.
- 41โCLIMATE SCIENCE: Assumptions, policy implications, and the scientific methodโ (PDF), Global Warming Policy Foundation (Report 24). Archived .pdf on file at DeSmog.
- 42Paul Gatis. โClimate expert John Christy to Congress: ‘I would not trust model projections‘,โ Alabama.com, February 3, 2016. Archived September 16, 2016. Archive.is URL: https://archive.is/YmKK0
- 43Paul Gatis. โClimate expert John Christy to Congress: ‘I would not trust model projections‘,โ Alabama.com, February 3, 2016. Archived September 16, 2016. Archive.is URL: https://archive.is/YmKK0
- 44Paul Gatis. โClimate expert John Christy to Congress: ‘I would not trust model projections‘,โ Alabama.com, February 3, 2016. Archived September 16, 2016. Archive.is URL: https://archive.is/YmKK0
- 45โTestimony of John R. Christy University of Alabama in Huntsvilleโ (PDF), U.S. House Committee on Science, Space & Technology Feb 2, 2016. Archived .pdf on file at Desmog.
- 46โData or Dogma? Promoting Open Inquiry in the Debate over the Magnitude of Human Impact on Earthโs Climateer,โ U.S. Senate Committee on Commerce, Science, & Transportation. Archived December 4, 2015. Archive.is URL: https://archive.is/9SbTE
- 47โTestimony of John R. Christyโ (PDF), U.S. Senate Committee on Commerce, Science, & Transportation Subcommittee on Space, Science and Competitiveness, Dec 8 2015. Archived .pdf on file at DeSmog.
- 48โData or Dogma? Promoting Open Inquiry in the Debate over the Magnitude of Human Impact on Earthโs Climateer,โ U.S. Senate Committee on Commerce, Science, & Transportation. Archived December 4, 2015. Archive.is URL: https://archive.is/9SbTE
- 49John R. Christy. โAlabama climatologist Dr. John Christy questions Pope’s take on climate change: guest opinion,โ Alabama Local News, June 22, 2015. Archived July 3, 2015. Archive.is URL: https://archive.is/4LD36
- 50John R. Christy. โAlabama climatologist Dr. John Christy questions Pope’s take on climate change: guest opinion,โ Alabama Local News, June 22, 2015. Archived July 3, 2015. Archive.is URL: https://archive.is/4LD36
- 51John R. Christy. โAlabama climatologist Dr. John Christy questions Pope’s take on climate change: guest opinion,โ Alabama Local News, June 22, 2015. Archived July 3, 2015. Archive.is URL: https://archive.is/4LD36
- 52โ7 questions with John Christy and Roy Spencer: Climate change skeptics for 25 years,โ Alabama.com, April 1, 2015. Archived September 16, 2016. Archive.is URL: https://archive.is/WxjXu
- 53Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
- 54Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
- 55Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
- 56Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
- 57Dana Nuccitelli. โA revealing interview with top contrarian climate scientists,โ The Guardian, April 6, 2015. Archive.is URL: https://archive.is/4K22h
- 58โAMERICAN PHYSICAL SOCIETY 4 CLIMATE CHANGE STATEMENT REVIEW WORKSHOPโ (PDF), American Physical Society, January 8, 2014. Archived .pdf on file at DeSmog.
- 59โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
- 60โAMERICAN PHYSICAL SOCIETY 4 CLIMATE CHANGE STATEMENT REVIEW WORKSHOPโ (PDF), American Physical Society, January 8, 2014. Archived .pdf on file at DeSmog.
- 61โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
- 62โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
- 63โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
- 64โBen Santer on the Climate Red Team,โ YouTube video uploaded by user โgreenmanbucket,โ October 5, 2020. Archived .mp4 on file at DeSmog.
- 65(Press Release). โLittle Evidence Linking Climate Change to Extreme Weather Events,โ Committee on Science, Space, and Technology, December 11, 2013. Archived December 30, 2013. Archive.is URL: https://archive.is/oBSQV
- 66Dana Nuccitelli. โRepublicans in Congress got the testimony they wanted to keep playing climate Russian roulette,โ The Guardian, December 26, 2013. Archive.is URL: https://archive.is/geX5X
- 67Peter Fimrite. โStudy: Sierra snowfall consistent over 130 years,โ San Francisco Chronicle, February 15, 2012. Archive.is URL: https://archive.is/Vfdae
- 68James Taylor. โDear Global Warming Alarmists: We’re Still Waiting for Declining Snowfall,โ Forbes, February 29, 2012. Archive.is URL: https://archive.is/q8vDK
- 69Mark Robison. โNews analysis: Does Sierra snow study buck fears of warming?,โ Reno Gazette-Journal, April 7, 2012. Republished by Lake Tahoe News (Original no longer available online). Archived September 15, 2016. Archive.is URL: https://archive.is/f8a7n
- 70โWritten Statement of John R. Christy The University of Alabama in Huntsville Subcommittee on Energy and Power Committee on Energy and Commerce 8 March 2011โ (PDF), The Energy and Commerce Committee, Subcommittee on Energy and Power, March 8, 2011. Archived .pdf on file at Desmog.
- 71โWritten Statement of John R. Christy The University of Alabama in Huntsville Subcommittee on Energy and Power Committee on Energy and Commerce 8 March 2011โ (PDF), The Energy and Commerce Committee, Subcommittee on Energy and Power, March 8, 2011. Archived .pdf on file at Desmog.
- 72Chris Mooney. โSo Now They Call in the Scientists?โ Desmog, March 7, 2011.
- 73โClimate Science and EPA’s Greenhouse Gas Regulations,โ House Energy & Commerce Committee, March 8, 2011. Archived March 16, 2011. Archive.is URL: https://archive.is/QOFTA
- 74โWritten Statement of John R. Christy The University of Alabama in Huntsville Subcommittee on Energy and Power Committee on Energy and Commerce 8 March 2011โ (PDF), The Energy and Commerce Committee, Subcommittee on Energy and Power, March 8, 2011. Archived .pdf on file at Desmog.
- 75โHouse Ways and Means Committee 25 February 2009 Written Testimony John R. Christy, University of Alabama in Huntsville,โ House Ways and Means Committee, February 25, 2009. Archived .pdf on file at Desmog.
- 76โSummary of Hearings on Climate Change (12/7/10),โ American Geosciences Institute, December 7, 2010. Archive.is URL: https://archive.is/UwlBh
- 77โSummary of Hearings on Climate Change (12/7/10),โ American Geosciences Institute, December 7, 2010. Archive.is URL: https://archive.is/UwlBh
- 78โUAH’s John Christy’s US House Ways & Means Committee testimonyโฆ examined,โ Citizens’ Challenge, January 8, 2011. Archive.is URL: https://archive.is/bHBqV
- 79โExposed: The Climate of Fear,โ CNN.com, 2007. Archived video on file at Desmog. Archive.is URL: https://archive.is/X4oYk
- 80โThe Great Global Warming Swindle Full Movie,โ YouTube Video uploaded by user Apollo, April 2, 2014. Archived video on file at Desmog.
- 81โTestimony of John R. Christy, Ph.D. (PDF), House Committee on Energy and Commerce Subcommittee on Oversight and Investigations, July 27, 2006. Archived .pdf on file at DeSmog.
- 82โSummary of Hearings on Climate Change (12-8-06),โ American Geosciences Institute, December 8, 2006. Archive.is URL: https://archive.is/5ju6Z
- 83Testimony of John R. Christy, Ph.D. (PDF), House Committee on Energy and Commerce Subcommittee on Oversight and Investigations, July 27, 2006. Archived .pdf on file at DeSmog.
- 84โSummary of Hearings on Climate Change (12-8-06),โ American Geosciences Institute, December 8, 2006. Archive.is URL: https://archive.is/5ju6Z
- 85John Christy and Roy Spencer. โWASHINGTON ROUNDTABLE ON SCIENCE & PUBLIC POLICY: Satellite Temperature Dataโ (PDF), George C. Marshall Institute, April 17, 2006. Archived .pdf on file at Desmog.
- 86John Christy and Roy Spencer. โWASHINGTON ROUNDTABLE ON SCIENCE & PUBLIC POLICY: Satellite Temperature Dataโ (PDF), George C. Marshall Institute, April 17, 2006. Archived .pdf on file at Desmog.
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