David Evans

David Evans

Credentials

Background

David M. W. Evans is an editor for the Australian edition of GoldNerds, a company that sells information about gold companies to investors. He also does private mathematics research. Evans works alongside his wife Joanne Nova at Science Speak, a group that describes itself as โ€œa small private scientific modeling and mathematical research companyโ€ that also speaks โ€œabout some science and economic issues.โ€7โ€œDavid Evans: Mathematician and Engineerโ€ (PDF), Sciencespeak.com. Archived .pdf on file at Desmog. 8โ€œAbout,โ€ Science Speak. Archived September 14, 2016. Archive.is URL: https://archive.is/x9OvE

David Evans gained media attention after a 2008 article he wrote in The Australian titled โ€No smoking hot spot.โ€ The article claims that climate change is not caused by C02 emissions because there is no evidence of โ€œa hot spot about 10km up in the atmosphere over the tropics.โ€9David Evans. โ€œNo smoking hot spot,โ€ The Australian, July 18, 2008. Archive.is URL: https://archive.is/T5OLa

His claim has been thoroughly debunked by Tim Lambert, a computer scientist at the University of New South Wales.10Tim Lambert. โ€œThe Australian’s War on Science XV,โ€ Deltoid, July 18, 2008. Archived March 8, 2009. Archive.is URL: https://archive.is/yv6f1

From 1999 to 2005, Evans worked for the Australian Greenhouse Office designing a carbon accounting system that is used by the Australian Government to calculate its land-use carbon accounts for the Kyoto Protocol.11โ€œDavid Evans: Mathematician and Engineerโ€ (PDF), Sciencespeak.com. Archived .pdf on file at Desmog.

While Evans said โ€[He] know[s] a heck of a lot about modeling and computers,โ€ in a 2007 presentation to the Lavoisier Group, he also states clearly that he is โ€œnot a climate modeler.โ€12David Evans. โ€œMy Life With the AGO and Other Reflectionsโ€ (PDF), July 4, 2007. Retrieved from pensee-unique.fr. Archived .pdf on file at Desmog.

Rocket Scientist?

David Evans claims to be a โ€œRocket Scientist,โ€ and conservative news sources have also described him as a โ€Top Rocket Scientist.โ€ While Evans does have a Ph.D. in electrical engineering, there is no evidence that he was ever employed as a rocket scientist.13David Evans. โ€œNo smoking hot spot,โ€ The Australian, July 18, 2008. Archive.is URL: https://archive.is/T5OLa 14Paul Joseph Watson. โ€œTOP ROCKET SCIENTIST: NO EVIDENCE CO2 CAUSES GLOBAL WARMING,โ€ InfoWars, July 22, 2008. Archived September 14, 2016. Archive.is URL: https://archive.is/N3hl4

When DeSmog contacted Evans regarding his claim, Evans replied that โ€œIn US academic and industry parlance, ‘rocket scientist’ means anyone who has completed a PhD in one of the hard sciences at one of the top US institutions.โ€ Evans also claims to be โ€œbuilding a word processor for Windows.โ€ DeSmog contacted Microsoft and they have confirmed that he does not work for them.15Kevin Grandia. โ€œWho is ‘Rocket Scientist’ David Evans?โ€ Desmog, July 22, 2008.

Sciencespeak also responded in similar parlance, saying that โ€œ’Rocket scientist’ is or was a widely used colloquial term in the US to mean anyone capable of doing rocket science, and applies to most hard technical PhDs at the handful of top institutions (and David certainly qualified).โ€ Sciencespeak additionally describes DeSmog as an โ€œattack siteโ€ with the intent of manufacturing โ€œsmears on scientists.โ€16โ€œAttacks and Smears on Us,โ€ Sciencespeak.com. Archived September 14, 2016. Archive.is URL: https://archive.is/nQgg6

Stance on Climate Change

2015/2016

David Evans proposes a โ€œNotch-Delay Solar Theoryโ€ which he summarizes as follows:

โ€œGlobal temperatures will come off the current plateau into a sustained and significant cooling, beginning 2017 or maybe as late as 2021. The cooling will be about 0.3 ยฐC in the 2020s, taking the planet back to the global temperature that prevailed in the 1980s. This was signaled (though not caused) by a fall in underlying solar radiation starting in 2004, one of the three largest falls since 1610 when records started. There is a delay of one sunspot cycle, currently 13 years (2004+13 = 2017).โ€17โ€œThe Notch-Delay Solar Theory,โ€ Science Speak. Archived September 14, 2016. Archive.is URL: https://archive.is/2S2ye

October 2015

โ€œThe model architecture was wrong. Carbon dioxide causes only minor warming. The climate is largely driven by factors outside our control.โ€18Miranda Devine. โ€œMiranda Devine: Perth electrical engineerโ€™s discovery will change climate change debate,โ€ Perth Now, October 3, 2015. Archived September 14, 2016. Archive.is URL: https://archive.is/GyhZx

โ€œYes, CO2 has an effect, but itโ€™s about a fifth or tenth of what the IPCC says it is. CO2 is not driving the climate; it caused less than 20 per cent of the global warming in the last few decades.โ€19Miranda Devine. โ€œMiranda Devine: Perth electrical engineerโ€™s discovery will change climate change debate,โ€ Perth Now, October 3, 2015. Archived September 14, 2016. Archive.is URL: https://archive.is/GyhZx

March 2011

โ€œI understand the evidence, I was once an alarmist, but now am a skeptic. [โ€ฆ] The idea that carbon dioxide is the main cause of the recent global warming is based on a guess that was proved false by empirical evidence during the 1990s. [โ€ฆ] Yes carbon dioxide is a cause of global warming, but itโ€™s so minor itโ€™s not worth doing much about.โ€20โ€œSummary Speech on Global Warming, 2011: Dr David Evansโ€ (PDF), sciencespeak.com, March 23, 2011. Archived .pdf on file at Desmog.

November 2009

  1. โ€œThere is almost no relationship between human emissions and global temperature, so global warming is not mainly due to human emissions of carbon dioxide.
  2. Something other than human emissions caused the global warming prior to 1850.
  3. The steadiness of the underlying temperature trend since 1700 suggests that whatever caused the warming prior to 1850 is still causing warming, and that the effect of human emissions of carbon dioxide is relatively insignificant.โ€21โ€œA Simple Proof that Global Warming Is Not Man-Madeโ€ (PDF), Science Speak, November 29, 2009. Archived .pdf on file at Desmog.

Key Quotes

January 2016

โ€œThere is no empirical evidence that rising levels of carbon dioxide will raise the temperature of the Earthโ€™s surface as fast as the UNโ€™s Intergovernmental Panel on Climate Change (IPCC) predicts. The predictions are entirely based on calculations with models.โ€22David Evans. โ€œClimate Scientists Misapplied Basic Physics โ€” A Summaryโ€ (PDF), Science Speak. Updated January 27, 2016.

April 2011

โ€œThe climate models all predict that as the planet warms, a hot spot of moist air will develop over the tropics about 10 kilometres up, as the layer of moist air expands upwards into the cool dry air above. During the warming of the late 1970s, โ€™80s and โ€™90s, the weather balloons found no hot spot. None at all. Not even a small one. This evidence proves that the climate models are fundamentally flawed, that they greatly overestimate the temperature increases due to carbon dioxide.โ€23David Evans. โ€œClimate models go cold,โ€ Financial Post, April 8, 2011. Archive.is URL: https://archive.is/WrMzM

October 2009

โ€œThe theory that we caused the global warming with our emissions of carbon dioxide is based on two assumptions (guesses), made in the early 1980s when there was insufficient data. One assumption has since been disproved, and the second is looking dubious.โ€24โ€œManufacturing Money and Global Warmingโ€ (PDF), Science Speak, October 25, 2009. Archived .pdf on file at Desmog.

How would anyone really know if global warming is occurring? People simply don’t notice changes as small as 0.5ยฐC, the amount of global warming over the last century. Any perceived cooling can be explained away by alarmists as just โ€œregional variationโ€. It’s beautiful: this scam could go for decades.โ€25โ€œManufacturing Money and Global Warmingโ€ (PDF), Science Speak, October 25, 2009. Archived .pdf on file at Desmog.

July 2008

โ€œIf there is no hot spot then an increased greenhouse effect is not the cause of global warming. So we know for sure that carbon emissions are not a significant cause of the global warming. [โ€ฆ]โ€26โ€œTop Rocket Scientist: No Evidence CO2 Causes Global Warming,โ€ Prison Planet, July 22, 2008. Archive.is URL: https://archive.is/N3hl4

โ€œI am the rocket scientist who wrote the carbon accounting model (FullCAM) that measures Australia’s compliance with the Kyoto Protocol, in the land use change and forestry sector.โ€27David Evans. โ€œNo smoking hot spot,โ€ The Australian, July 18, 2008. Archive.is URL: https://archive.is/T5OLa

Key Deeds

February 4, 2018

In January 2018, more than 200 scientists endorsed an open letter calling on the American Museum of Natural History (AMNH) to remove climate change denier Rebekah Mercer from its board and to โ€œend ties to anti-science propagandists and funders of climate science misinformation.โ€ The New York Times reported that those among the AMNH letter calling for Mercer to step down were Michael E. Mann, director of the Earth System Science Center at Pennsylvania State University, and Katharine Hayhoe, director of the Climate Science Center at Texas Tech University.28Robin Pogrebin and Somini Sengupta. โ€œA Science Denier at the Natural History Museum? Scientists Rebel,โ€ The New York Times, January 25, 2018. Archived February 13, 2018. Archive.is URL: https://archive.is/tAIv4

Evans was among a group of climate change deniers who responded with their own open letter, calling for the AMNH โ€œnot to cave in to this pressure.โ€ The letter was signed by numerous individuals with ties to groups funded by the Mercer Family Foundation such as Will Happer of the CO2 CoalitionRichard Lindzen, a fellow at the Cato InstituteCraig Idso, the chairman of the Center for the Study of Carbon Dioxide and Global Change. There are a number of signatories affiliated with the Heartland Institute, which has received over $5.78 million from the Mercer Family Foundation since 2008.29Graham Readfearn. โ€œClimate Science Deniers Defend New Yorkโ€™s American Museum of Natural History From Calls to Drop Trustee Rebekah Mercer,โ€ DeSmog, February 6, 2018.

The letter reads:30mnh18-feb4-petitionletter (PDF – Untitled). Retrieved from Watts Up With That.

โ€œThe Earth has supported abundant life many times in the geological past when there were much higher levels of carbon dioxide in the atmosphere. It is quite likely that future generations will benefit from the enrichment of Earthโ€™s atmosphere with more carbon dioxide.

โ€œMake no mistake, the agitators are not defending science from quackery โ€” quite the contrary!โ€

February 23, 2017

David Evans was a signatory of a petition (PDF) organized by Richard Lindzen of the Cato Institute urging President Donald Trump to pull the United States out of the United Nations international convention on climate change (UNFCCC).31โ€œPETITIONโ€ (PDF), February 23, 2017. Richard Lindzen. PDF Archived at DeSmog.

โ€œIn just a few weeks, more than 300 eminent scientists and other qualified individuals from around the world have signed the petition below,โ€ Lindzen wrote in the letter.32โ€œPETITIONโ€ (PDF), February 23, 2017. Richard Lindzen. PDF Archived at DeSmog.

DeSmog investigated the list, and found that only a small handful of the signatories could be considered โ€œeven remotely โ€˜qualifiedโ€™ or โ€˜eminentโ€™ โ€” but not in the field of climate science.โ€ The list included individuals โ€œinterested in climate,โ€ and one signatory who only identified as an โ€œemailer who wished to sign the petitionโ€ while some signers provided no affiliation or address whatsoever.33Graham Readfearn. โ€œClimate Science Denier Richard Lindzen’s List of 300 โ€œScientistsโ€ Sent to Trump Is the Usual Parade of Non-Experts,โ€ DeSmog, February 27, 2017.

August 2016

David Evans is listed as a โ€œFounding Memberโ€ of group named Climate Exit (Clexit) led by climate change denier Christopher Monckton. According to Clexit’s founding statement (PDF), โ€œThe world must abandon this suicidal Global Warming crusade. Man does not and cannot control the climate.โ€34โ€œThe Clexit Committee comprisesโ€ (PDF), Clexit.net. Archived.pdf on file at Desmog. 35โ€œAfter Brexit, Clexitโ€ (PDF), Clexit.net. Archived .pdf on file at Desmog.

DeSmog reports on how the group grew in the wake of the UK’s decision to leave the EU. A key member of Clexit’s โ€œ60 well-informed science, business and economic leadersโ€ is Hugh Morgan, a former board member of the Reserve Bank of Australia and former CEO of Western Mining Corporation with close ties to Australia’s Liberal party.36Graham Readfearn. โ€œAfter Brexit, Climate Science Denialists Form New Group to Call for a Clexit,โ€ Desmog, August 3, 2016. 37โ€œHugh Morgan AO,โ€ Australian Government Department of Foreign Affairs and Trade. Archived February 22, 2002. Archive.is URL: https://archive.is/1ObOB

According to Clexit’s founding statement:

โ€œIf the Paris climate accord is ratified, or enforced locally by compliant governments, it will strangle the leading economies of the world with pointless carbon taxes and costly climate and energy policies, all with no sound basis in evidence or science [โ€ฆ]โ€38โ€œAfter Brexit, Clexitโ€ (PDF), Clexit.net. Archived .pdf on file at Desmog.

October 2015

Under the headline โ€œPerth electrical engineerโ€™s discovery will change climate change debate,โ€ News Corp Australia columnist Miranda Devine wrote about the latest theory by David Evans:39Miranda Devine. โ€œMiranda Devine: Perth electrical engineerโ€™s discovery will change climate change debate,โ€ Perth Now, October 3, 2015. Archived September 14, 2016. Archive.is URL: https://archive.is/GyhZx

โ€œIf Dr Evans is correct, then he has proven the theory on carbon dioxide wrong and blown a hole in climate alarmism,โ€ she writes. โ€œHe will have explained why the doomsday predictions of climate scientists arenโ€™t reflected in the actual temperatures.โ€40Miranda Devine. โ€œMiranda Devine: Perth electrical engineerโ€™s discovery will change climate change debate,โ€ Perth Now, October 3, 2015. Archived September 14, 2016. Archive.is URL: https://archive.is/GyhZx

Graham Readfearn comments on the piece in an article in The Guardian, noting that Evans’s theory had arose from a series of over 11 blog posts he had on his wife’s blog (JoNova) where Evans claims to have found fundamental problems with climate models.41Graham Readfearn. โ€œAs Paris talks approach, not even Donald Trump’s fringe can hide desperation of climate science denialists,โ€ The Guardian, October 16, 2015. Archive.is URL: https://archive.is/5yoM5

Prof Matt England, of the University of New South Wales climate change research centre, had this to say:

David Evans has a superb track record of dodgy claims and bizarre climate change theories. He has zero credibility in the field and itโ€™s staggering that any credible journalist could fall for this rubbish.42Graham Readfearn. โ€œAs Paris talks approach, not even Donald Trump’s fringe can hide desperation of climate science denialists,โ€ The Guardian, October 16, 2015. Archive.is URL: https://archive.is/5yoM5

Prof Stefan Rahmstorf, head of Earth System Science at the Potsdam Institute for Climate Impact Research, told Readfearn:

โ€œIโ€™ve been working in climate science for 25 years now, and every few months someone (often they are engineers) comes up with a supposed bombshell refutation of human-caused global warming – none of this has ever stood up to scientific scrutiny. Dr Evans rolls out a number of well-worn false assertions often heard from those outside science who try to discredit climate science. Global warming is not pausing: itโ€™s a measured fact that the globally hottest years on record are 2014, 2010 and 2005. 2015 is already so much warmer than 2014 that it is almost certain to be yet another record year. Models reproduce (and have in fact predicted) the warming of the past forty years well. I am surprised that some journalists are still gullible enough to present such a non-story, based merely on wild claims in a blog.โ€43Graham Readfearn. โ€œAs Paris talks approach, not even Donald Trump’s fringe can hide desperation of climate science denialists,โ€ The Guardian, October 16, 2015. Archive.is URL: https://archive.is/5yoM5

September 18, 2013

David Evans is listed as a Contributing Author to โ€œClimate Change Reconsidered II,โ€ a publication of the Heartland Institute’s Nongovernmental International Panel on Climate Change (NIPCC). It was sponsored by the Center for the Study of Carbon Dioxide and Global Change, The Science and Environmental Policy Project, and the Heartland Institute.44โ€œClimate Change Reconsidered II: Physical Science,โ€ Nongovernmental International Panel on Climate Change. Archived September 14, 2016. Archived .pdf on file at Desmog.

The report’s introduction outlines how it plans to specifically discredit the Independent Panel on Climate Change (IPCC):45โ€œClimate Change Reconsidered II: Physical Scienceโ€ (PDF), Nongovernmental International Panel on Climate Change. PDF Archived at Desmog.

โ€œLike its predecessor reports, this volume provides the scientific balance that is missing from the overly alarmist reports of the United Nationsโ€™ Intergovernmental Panel on Climate Change (IPCC), which are highly selective in their review of climate science and controversial with regard to their projections of future climate change. Although the IPCC claims to be unbiased and to have based its assessment on the best available science, we have found this to not be the case. In many instances conclusions have been seriously exaggerated, relevant facts have been distorted, and key scientific studies have been ignored.โ€46โ€œClimate Change Reconsidered II: Physical Scienceโ€ (PDF), Nongovernmental International Panel on Climate Change. PDF Archived at Desmog.

October 1, 2010

David Evans was a speaker at the Heartland Institute’s Fifth International Conference on Climate Change (ICCC5) in Sydney, Australia. The event was sponsored by Heartland, Americans for Tax Reform, the Property Rights Alliance, and the Institute of Public Affairs.47โ€œICCC-5,โ€ International Conferences on Climate Change. Archived September 14, 2016. Archive.is URL: https://archive.is/GMM1Z

Evans’ speech was titled โ€Is the Western Climate Establishment Corrupt?โ€ Video below:

March 8โ€“10, 2009

Evans made a presentation titled โ€œCarbon Dioxide Not Responsible for 20th Century Warmingโ€ at the Heartland Institute’s 2009 Second International Conference on Climate Change (ICCC2). See video coverage below:48โ€œHeartland Institute/International Conference on Climate Change (2009),โ€ SourceWatch.

DeSmog researched the funding behind the conference and found that sponsor organizations had collectively received over $47 million from energy companies and right-wing foundations, with 78% of that total coming from the Scaife Family of foundations.

Affiliations

Publications

According to his own resume, Evans has not published any peer-reviewed research papers on the subject of climate change. Evans published one paper in 1987, but it was unrelated to climate change.57Kevin Grandia. โ€œWho is ‘Rocket Scientist’ David Evans?โ€ Desmog, July 22, 2008.

Other Resources

Resources

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