Claes Goran Johnson

Claes Göran L. Johnson


  • Docent in Numerical Analysis, Chalmers University of Technology (1978).
  • Ph.D. in Mathematics, Chalmers University of Technology, (1973).
  • Master of Engineering, Chalmers University of Technology, (1969).

Source: [1]


Claes Göran Johnson is a professor of applied mathematics at the Royal Institute of Technology in Stockholm, Sweden. He has produced a series of books titled Applied Mathematics: Body and Soul and has published other work in the area of computational mathematics, finite element methods, mechanics and physics. [2]

Stance on Climate Change

“…climate sensitivity as global warming by doubled CO2, can
be estimated to be smaller than 0.3 °C, to be compared with the 3 °C estimated by IPCC, on the basis of the inflated radiative exchange from 60 to 500 W/m2 resulting from fictional back radiation/DLR.” [3]

Key Quotes

“If thermodynamics is the main mechanism of the atmosphere as an air conditioner or heat transporter, then CO2 will not cause warming, and IPCC climate alarmism collapses.” [4]

“…the realization that carbon dioxide alarmism has no scientific basis spreads rapidly among the world's scientists. Today, there are many scientists who know that the carbon dioxide alarmism preached by the IPCC and the Stockholm Resilience Centre is based on scientific falsehoods revealed partly by Climategate. There are many scholars who know that there is no evidence to suggest that a little more carbon dioxide in the air could be dangerous.” [5]

Key Deeds

February 23, 2017

Claes Göran Johnson 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). [7]

In just a few weeks, more than 300 eminent scientists and other qualified individuals from around the world have signed the petition below,” Lindzen wrote in the letter.

DeSmog investigated the list, and found that only a small handful of the signatories could be considered “even remotely ‘qualified’ or ‘eminent’ — but not in the field of climate science.” The list included individuals “interested in climate,” and one signatory who only identified as an “emailer who wished to sign the petition” while some signers provided no affiliation or address whatsoever. [8]

September 1, 2011

Johnson was a featured speaker at a conference organized by climate change skeptic Anne Debeil and supposedly hosted by “The Climate Change Think-Tank of the SEII.” The original event was to feature climate change skeptics S. Fred Singer as well as Claes-Göran Johnson.

However, the invitation for this event was not sent. According to communications with SEII president Philippe Wauters, the event was initially canceled because the event organizer Henri Masson did not follow proper procedures or notify SEII board members before setting up the conference in their name.

Some suggest the cancelation was influenced by a letter written by Jean-Pascal van Ypersele to the Fondation Universitaire that had pointed out Fred Singer's fossil fuel funding, saying that it would be “scandalous that such a person could be remotely or closely associated with the SEII and to the Fondation Universitaire.” However according to Wauters, this letter was sent after SEII directed Masson to reclassify his event as a private meeting.

The private meeting was by invitation only (PDF) with the seminar titled “Critical Thinking & Complex Systems Analysis applied to the Controversy Climate Change.” [6]

Video of the seminar is available here and here.


Johnson presented on “CO2 Climate Alarmism Debunked by Mathematics” (.ppt) which offers the conclusion that modern climate science may be the “biggest scientific fraud ever” citing supposed manipulation of data. According to his last PowerPoint slide, Johnson suggests that the blogosphere is the perfect “arena of skepticism” because it cannot be censored.


[Pending further investigation]


According to his resume (PDF), Claes Johnson has published 100 scientific articles and 6 books on applied mathematics, partial differential equations, finite element methods and numerical analysis.

While Johnson has a significant number of citations on Google Scholar, it appears he has co-authored only one journal article in the area of climate science titled “Basic Thermodynamics of the Atmosphere,” published in Relation in 2010. Upon closer inspection, the original source of the article appears to be Johnson's personal website, and there is no detailed reference of any scientific journal by the name of “Relation.”


  1. “Curriculum vitae: Claes G L Johnson” (PDF), Accessed September 27, 2012.

  2. Claes Johnson,” The World as Computation, June 4, 2009.

  3. CLIMATE CHANGE: Latest Update,” SEII (undated, unverified). Accessed Oct 10, 2012.

  4. Claes Johnson. “Climate Thermodynamics” (PDF), retrieved from Claes Johnson's personal website at, September 27, 2012.

  5. The question is whether climate jury is impartial (Frågan är om klimatjuryn är opartisk),”, November 2, 2011. Translated from Swedish with Google Translate.

  6. Press Release, “University of Brussels and European engineering academy bowing to pressure from high official IPCC and Greenpeace Activist: Locked doors for the Seminar & Workshop 'CLIMATE CHANGE: Latest update',” The Climate Scam, September 1, 2011. Translated with Google Translate.

  7. PETITION” (PDF), February 23, 2017. Richard Lindzen. PDF Archived at DeSmog.

  8. Graham Readfearn. “Climate Science Denier Richard Lindzen's List of 300 “Scientists” Sent to Trump Is the Usual Parade of Non-Experts,” DeSmog, February 27, 2017.