John Dale Dunn

John Dale Dunn


  • J.D., Creighton University, Omaha, Nebraska (1979). [1]
  • M.D., Creighton University (1971). [1]
  • B.S., biology, Creighton University (1967). [1]


John Dale Dunn is a practicing physician and has worked as a civilian emergency medicine faculty physician at Carl R. Darnall Army Medical Center in Fort Hood Texas since 2003.

John Dale Dunn is also a policy advisor for the Heartland Institute and the American Council on Science and Health (ACSH).

From 1989 to 1995 he was an instructor on environmental law at Howard Payne University, in Brownwood, Texas from 1989 - 1995. He has been a reviewer for the Annals of Emergency Medicine since 1991 and of Military Medicine since 2006. [1]

Stance on Climate Change

“I assert that warm is good for human health and that global warming, even the most extreme estimates, will not create heat illness or death increases and certainly no changes that are more important than the basic public health measures of vector control, water, nutrition, sewage and water quality, and housing quality.” [2]

Key Quotes

“United States Environmental Protection Agency (EPA)-sponsored and funded 'human health effects science' research is unreliable and makes irresponsible and outrageous claims about how air pollution causes thousands of deaths.” [3]

“The internal documents obtained under FOIA revealed the EPA and enviros were looking for a hook and decided the hook they were looking for was the health of children […] Why not? Nothing better to get politicians moving than marching and chanting women in matching t-shirts on a tear, worried about and advocating for their babies.” [7]

Key Deeds

November 9, 2017

Dunn was a speaker at the Heartland Institute's “America First Energy Conference” at the Marriott Hotel in Houston, Texas.  Dunn spoke on Panel 4B: “Energy, Climate, and Human Health.” His presentation was titled “Noble Lies”: [16]

The event description read as follows: [13]

At the America First Energy Conference, we plan to examine—one year and one day after Trump’s shocking Election Day victory—the following:

Where does Trump’s America First Energy Plan stand?

How much progress has been made in implementing it, and what remains to be done?

What scientific and economic evidence is there that the plan is putting the nation on the right path for economic growth, environmental protection, or both?” [13]

In a fundraising letter obtained by DeSmog, Fred Palmer had promoted the event as having the goal to “review the scientific and economic evidence that exposes the fraud inherent in the Obama-era regulation regime” while discussing “the overwhelming benefits of fossil fuels to us all.” [14]

Many of the other speakers have regularly spoken at the Heartland Institute's past ICCCs. Notable speakers listed so far Joe Bast, Fred PalmerRoger BezdekH. Sterling BurnettHal Doiron, Paul DriessenJohn Dale DunnMyron Ebell, Heartland's new President Tim HuelskampCraig IdsoDavid LegatesJay LehrAnthony LupoRoss McKitrickSteve MilloyTodd MyersJohn Nothdurt, David Schnare, and numerous others. [15]

As reported at the Houston Chronicle, speakers notably included two Trump Administration officials: Richard W. Westerdale II of the State Department and Vincent DeVito of the Department of Interior. David Bernhardt, deputy secretary of the Interior Department, was also formerly listed as a Heartland conference speaker, but apparently withdrew. [17]

Scott Pruitt also addressed the conference in a recorded video, personally thanking Heartland for “what you're doing to advance energy” and “for what you're doing to advance natural resources. [18]

The Climate Investigations Center put up a parody of the America First Energy conference website, complete with profiles on the individual speakers and highlighting their corporate funding and ties to groups such as the Cooler Heads Coalition (CHC)[19]

March 23, 2017

Dunn was a panelist at the Heartland Institute's 12th International Conference on Climate Change (ICCC12), appearing on Panel 4A) “Human Health Effects.” [12]

February 23, 2017

John Dale Dunn 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). [10]

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. [10]

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. [11]

July 7 - 9, 2014

Dunn was a speaker at the Heartland Institute’s Ninth International Conference on Climate Change (ICCC9) in Las Vegas, Nevada. [6]

DeSmogBlog has done in-depth research on the other speakers and sponsors from Heartland's ICCC9, which can be found here.

December 14, 2012

John Dale dunn disputes the relevance of a study that showed significant health benefits to banning smoking in a local restauraunt. Dunn argues that the study had a conflict of interest, and counters with a paper published by the National Bureau of Economic Research and the Rand Corporation. [8]

According to Sourcewatch, the National Bureau of Economic Research has been called non-partisian, “but failed to identify a penny of the $10 million it receives in conservative philanthropic underwriting.” [9]

May 21 - 23, 2012

Dunn was a speaker at the Heartland Institute's Seventh International Conference on Climate Change (ICCC7).

DeSmogBlog researched the co-sponsors behind Heartland's ICCC7 and found that they had collectively received over $67 million from ExxonMobil, the Koch Brothers and the conservative Scaife family foundations.

March 8 - 10, 2009

Dunn was a speaker for the International Conference on Climate Change (2009), hosted by the Heartland Institute. His presentation is titled “Human Health Effects of Warming and Cooling.” [4]

March, 2008

Dunn was a speaker at the Heartland Institute's First International Conference on Climate Change.

See his speech below: [2]



According to a search of Google Scholar, Dunn has published a number of papers in medical journals.

He does not appear to have published any papers related to climate, or climate change and human health.


  1. Heartland Experts: Dr. John Dale Dunn, M.D., J.D.”, The Heartland Institute. Retrieved May 4, 2012.

  2. Will human health suffer with Global Warming?”, YouTube Video uploaded by user “Bushvision,” May 20, 2008.

  3. John Dale Dunn & Steve Milloy: The EPA’s Faulty Science Can Be Stopped,”, April 19, 2012.

  4. Proceedings,” The 2009 International Conference on Climate Change. Archived March 12, 2009.

  5. Scientific Advisors,” American Council on Science and Health. Archived January 10, 2010.

  6. Return of Climate Denial-a-Palooza: Heartland Institute Hitches Anti-Science Wagon to Vegas FreedomFest,” DeSmogBlog, July 7, 2014. Archived July 14, 2014.

  7. Memo Reveals Bogus EPA Climate Strategy,” The Heartlander. January 30, 2015.

  8. John Dale Dunn. “Study on Smoking Bans Mischaracterizes Medical Data,” Heartlander. December 14, 2012.

  9. National Bureau of Economic Research,” SourceWatch. Accessed June 1, 2015.

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

  11. 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.

  12. JOHN DALE DUNN,” Archived April 6, 2017. URL:

  13. About,” America First Energy. Archived October 11, 2017. URL

  14. October 2017 Fundraising letter by Fred Palmer. On file at Desmog.

  15. SPEAKERS,” America First Energy. Archived October 10, 2017. URL

  16. JOHN DALE DUNN,”America First Energy Conference. Archived November 21, 2017. URL

  17. James Osborne. “Trump officials to appear at Houston event hosted by climate skeptics,” Houston Chronicle, November 2, 2017. Archived November 20, 2017. URL

  18. Scott Pruitt,” America First Energy ConferenceArchived November 20, 2017. URL

  19. America First Energy Conference Stacked with Climate Change Deniers,” Climate Investigations Center, November 6, 2017. Archived November 20, 2017. URL

Profile image screenshot from YouTube, John Dale Dunn speaking at the Heartland Institute's 12th International Conference on Climate Change (ICCC12).