Center for the Study of Carbon Dioxide and Global Change

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Center for the Study of Carbon Dioxide and Global Change
CO2 Science logo.jpg
Founded 1998
Type 501(c)(3)
Focus CO2 Science
Key people
Sherwood B. Idso, President
Craig D. Idso, Chairman
Keith E. Idso, Vice-President

The Center for the Study of Carbon Dioxide and Global Change is a 501(c)(3) non-profit organization based in Tempe, Arizona.[1] The Center produces a weekly online science newsletter called CO2Science.

The Center was founded and is run by Craig D. Idso, along with Sherwood B. Idso, his father, and Keith E. Idso, his brother. They came from backgrounds in agriculture and climate. According to the Idsos, they became involved in the global warming controversy through their study of earth's temperature sensitivity to radiative perturbations and plant responses to elevated CO2 levels and carbon sequestration. The Center sharply disputes the consensus scientific opinion on climate change shown in IPCC assessment reports, and believes that global warming will be beneficial to mankind.


The Center does not discuss their funding, saying, "we believe that ideas about the way the world of nature operates should stand or fall on their own merits, irrespective of the source of support for the person or organization that produces them."[2][excessive quote][third-party source needed]

According to IRS records, the ExxonMobil Foundation provided a grant of $15,000 to the center in 2000.[3] Another report states that ExxonMobil has funded an additional $55,000 to the center.[4] ExxonMobil stated it funded, "organizations which research significant policy issues and promote informed discussion on issues of direct relevance to the company. [...] These organizations do not speak on our behalf, nor do we control their views and messages."[5]

Sherwood Idso attributed the funding to, "they probably liked what we typically had to say about the issue. But what we had to say then, and what we have to say now, came not, and comes not, from them or any other organization or person. Rather, it was and is derived from our individual scrutinizing of the pertinent scientific literature and our analyses of what we find there, which we have been doing and subsequently writing about on our website on a weekly basis without a single break since 15 Jul 2000, and twice-monthly before that since 15 Sep 1998 ... and no one could pay my sons and me enough money to do that."[2][excessive quote][third-party source needed]

The center was also funded by Peabody Energy, America’s biggest coalmining company.[6]


The Center's stated purpose is to "disseminate factual reports and sound commentary on new developments in the world-wide scientific quest to determine the climatic and biological consequences of the ongoing rise in the air's CO2 content."[7][third-party source needed]

  • Medieval Warm Period Project: intended to document peer-reviewed studies of the Medieval Warm Period (MWP), and to determine:
    • Was MWP global in extent?
    • How warm was MWP compared to the Current Warm Period (CWP)?
    • Was MWP longer or shorter than the CWP? [8][third-party source needed]
  • Nongovernmental International Panel on Climate Change (NIPCC), the NIPCC website states that its reports were boosted when Craig Idso agreed to combine the Center's collections of reviews of science with the work of the NIPCC which had been conceived and founded by Fred Singer.[9]


A December 2009 article in Mother Jones magazine said the Center was a promoter of climate disinformation.[10]


  1. ^ "Center for the Study of Carbon Dioxide and Global Change". National Center for Charitable Statistics (NCCS). Retrieved 2012-08-19. 
  2. ^ a b Idso, Sherwood B. "What Motivates the Center for the Study of Carbon Dioxide and Global Change?". Center for the Study of Carbon Dioxide and Global Change. Retrieved 2012-08-18. 
  3. ^ Nesmith, Jeff (June 1, 2003). "Foes of global warming theory have energy ties". Seattle Post-Intelligencer. Retrieved 2012-08-18. 
  4. ^ "Put a Tiger In Your Think Tank". Mother Jones. May 2005. Retrieved October 20, 2015. 
  5. ^ Lawless, Jill (September 20, 2006). "Exxon accused of funding groups that mislead on climate change". USA Today. Retrieved 2012-08-18. 
  6. ^
  7. ^ "Mission Statement". Center for the Study of Carbon Dioxide and Global Change. Retrieved 2010-03-09. 
  8. ^ MWP Project Overview
  9. ^ About the NIPCC Archived 2014-02-08 at the Wayback Machine.[third-party source needed]
  10. ^ Harkinson, Josh (December 4, 2009). "The Dirty Dozen of Climate Change Denial". Mother Jones. Retrieved August 17, 2015. 

External links[edit]