Christopher Essex


Christopher Essex


  • Ph.D. York 1982
  • M.Sc. Rice 1978
  • B.Sc. U.W.O. 1976

Source: [1]


Essex is a professor of applied mathematics at the University of Western Ontario.

He was an author of the Fraser Institute's 2007 “Independent Summary for Policymakers”, and a 2002 book titled Taken By Storm: The Troubled Science, Policy and Politics of Global Warming.

Essex's page at the University of Western Ontario's website displays a photo of him ice skating with the caption, “I skate on global warming.”

Stance on Climate Change

“There is no such thing as global temperature. And if there is no global temperature, how can there be global warming?” [2]

Key Quotes

“The world is not going to end because of climate change, at least not in the near future.” [3]

Key Deeds

November 5, 2014

The Heartland Institute's “environmental science and policy experts” published comments following the United Nations' Intergovernmental Panel on Climate Change's (IPCC) release of its “Synthesis Report,” completing the IPCC's Fifth Assessment Report (AR5). [13]

Christopher Essex commented in Heartland's press release, writing that “the probabilities cited by [IPCC] aren’t scientific; they aren’t actual probabilities. They are just the opinions of fallible human beings dressed up to look scientific.” [13] Essex also remarked that the “ludicrous echoes,” between the IPCC and the global media, which Essex believes to have a “unique co-dependent relationship,” continue to “make the news again and again as fresh as spring flowers.” [13]

March 30, 2009

Essex's signature is displayed alongside a full-page ad funded by the CATO institute that appeared in numerous newspapers including the Washington Post, the New York Times and the Chicago Tribune in 2009.

The advertisement responds to President Obama's declaration that “few challenges facing America and the world are more urgent than combating climate change. The science is beyond dispute and the facts are clear” by saying that “with all due respect Mr. President, that is not true.” It goes on to describe how “there has been no net global warming for over a decade,” and how global warming is “grossly overstated.” [4]

March 8-10, 2009 

Essex was a speaker at the Heartland Institute's 2009 International Conference on Climate Change.

Heartland described the conference as “a platform for scientists and policy analysts from around the world who question the theory that global warming is a crisis.” One of the main purposes of the conference was to cast doubt on the findings of the most recent IPCC report.

February, 2007

Essex was on the “writing team” for the Fraser Institute's 2007 independent summary for policymakers (ISPM).

The ISPM's conclusion is that “there will remain an unavoidable element of uncertainty as to the extent that humans are contributing to future climate change, and indeed whether or not such change is a good or bad thing.” [5]

Other authors included well known global warming skeptics such as Joseph D'aleo, Madhav Khandekar, William KininmonthWibjorn Karlen, Ian Clark, and Tad Murty.

December 13, 2007 

Essex is a signatory of the December 2007 open letter to the UN Secretary-General Ban Ki-Moon.

The letter describes global warming as a natural phenomenon, and expresses how carbon dioxide is a “non-polluting gas that is essential to plant photosynthesis.” The letter further claims that the IPCC reports are “inadequate as justification” for implementing climate change policy. [6]

November, 2006

Canada's Conservative government appointed Essex to the 21-member Natural Sciences and Engineering Research Council of Canada, which oversees research grants to Canadian universities.

Critics were concerned his appointment would weaken support for climate research. “If you put someone in who doesn't believe in climate change and sees no urgency to fight against human-related climate change, you then skew the entire debate,” said New Democratic Party member of Parliament Nathan Cullen. “It's a Republican-style approach where you fund the skeptics.” [7]


Christopher Essex and Ross McKitrick publish Taken By Storm: The Troubled Science, Policy and Politics of Global Warming. The book won the 2002 Donner Book Prize, a $10K award “paid for in part by the Donner Canadian Foundation, which contributed $20K toward writing the book in 2002.” [12]



According to a search of 22,000 academic journals, Essex has published over 25 original research papers in peer-reviewed journals, mainly in the area of applied mathematics. 

Essex co-authored a book with Ross McKitrick in 2002 titled Taken by Storm: the troubled science, policy and politics of global warming.

Science blogger Tim Lambert examined the book, and determined that Essex's claims were based on miscalculations. [9]


  1. Christopher Essex: Professor and Associate Chair,” Department of Applied Mathematics at the University of Western Ontario. Accessed December 8, 2011.

  2. There is no global 'temperature'”, National Post, June 23, 2007.

  3. A worldwide fervor over climate change orthodoxy: Christopher Essex,” The Toronto Sun, February 22, 2010.

  4. Climate Change Reality,” The Cato Institute.

  5. “Independent Summary for Policymakers: IPCC Fourth Assessment Report” (PDF), The Fraser Institute, March 2, 2007.

  6. Open Letter to the Secretary-General of the United Nations,” The Science and Public Policy Institute, Reprint. December 13, 2007.

  7. Bill Curry, “Opposition parties vow to 'clean the Clean Air Act': As critics await chance to amend bill, controversy erupts over research awards,” The Globe and Mail (Canada), November 2, 2006.

  8. “Independent Summary for Policymakers IPCC Fourth Assessment Report” (PDF), The Fraser Institute, March 2, 2007.

  9. Corrections to the McKitrick (2002) Global Average Temperature Series,” Deltoid, May 20, 2004.

  10. Christopher Essex,” SourceWatch Profile.

  11. On Chris Essex, Politics, Accountability and Climate Change Denial,” DeSmogBlog, November 2, 2006.

  12. Ross McKitrick,” SourceWatch profile.

  13. Heartland Institute Experts Comment on Latest United Nations Climate Report,” Heartland Institute, November 5, 2014.