Kiminori Itoh

Kiminori Itoh


  • Ph.D., Industrial Chemistry, University of Tokyo (1978). [1]


Dr. Kiminori Itoh received his Ph.D. in industrial chemistry from University of Tokyo in 1978. Presently, he is a faculty member of the Engineering Department at the Yokohama National University.

Dr. Kiminori Itoh declares himself a “physical chemist familiar with environmental sciences, and not particularly specialized in climate science.” He is the author of the Japanese-language book Lies and Traps in the Global Warming Affairs.

He is listed as one of the “10 Most-Respected Global Warming Skeptics” by Business Insider.

Stance on Climate Change

Itoh concludes his book on climate change with the following points: [2]

  1. “The global temperature will not increase rapidly if at all. There is sufficient time to think about future energy and social systems.”

  2. “The climate system is more robust than conventionally claimed. For instance, the Gulf Stream will not stop due to fresh water inflow.”

  3. “There are many factors that cause the climate changes, particularly in regional and local scales. Considering only greenhouse gasses is nonsense and harmful.”

  4. “A comprehensive climate convention is necessary. The framework-protocol formulism is too old to apply to modern international issues.”

  5. “Reconsider countermeasures for the climate changes. For instance, to reduce Asian Brown Cloud through financial and technical aid of developed countries is beneficial from many aspects, and can become a Win-Win policy.”

  6. “The policy makers should be ‘Four-ball jugglers.’ Multiple viewpoints are inevitable to realize sustainable societies.”

Key Quotes

“Warming fears are the “worst scientific scandal in the history… When people come to know what the truth is, they will feel deceived by science and scientists.” [8]

“I also took a patent on sunspot number anticipation, and did some contribution to the IPCC AR4 as an expert reviewer. This is no doubt surprising for an environmental physical chemist like me. I am now even feeling that my original expertise, metrology, was all along close to meteorology; that is, 'meteorology' is formed by putting 'eo' inside 'metrology'.” [1]

Key Deeds

March 30, 2009

Itoh's signature is appended to a full-page ad funded by the right-wing CATO institute that appeared in numerous newspapers including the Washington Post, the New York Times and the Chicago Tribune in 2009.

The advertisement criticizes President Obama's declaration that “few challenges facing America and the world are more urgent than combating climate change,” stating that “with all due respect Mr. President, that is not true.”

The ad claims that “there has been no net global warming for over a decade,” and that the dangers of global warming are “grossly overstated.” [4]


Itoh's name appears in the 2008 U.S. Senate Minority Report by senator James Inhofe that lists 650 global warming dissenters within the scientific community. 

Itoh's statement in the report appears to be an amalgamation of the title of the preface to his book, “The Worst Scientific Scandal In History,” and a statement given by Dr. Syun-Ichi Akasofu: “When people know what the truth is, they will feel deceived by science and scientists.”


On his profile on the Heartland Institute, Itoh is described as an IPCC (Independent Panel on Climate Change) AR4Expert Reviewer.” 

This title can be misleading, as it does not mean he was officially asked by the IPCC to review material.  Rather, virtually anyone who requests to view a draft IPCC report and agrees not to publicly comment on the material is considered an expert reviewer.


According to Google Scholar and Yokohama National University, Dr. Itoh has not published any work in the area of climate change in peer-reviewed science journals.

Itoh has written four books on the subject of global warming, all in Japanese. His most recent book, translated to Lies and Traps in the Global Warming Affairs, is divided up as follows:

Introduction: “The global warming issue as an environmental terrorism.”
Chapter 1: “Is the earth really warming?”
Chapter 2: “What drives the temperature change?”
Chapter 3: “Are abnormal weathers really abnormal?”
Chapter 4: “Adhockery of “An Inconvenient Truth.”
Chapter 5: “Future perspective from the reflection of Kyoto Protocol.”

Itoh also writes “points for policy makers” such as how “the global temperature will not increase rapidly if any,” so there “is sufficient time to think about future energy and social systems,” and that “the climate system is more robust than conventionally claimed.”


  1. Guest Weblog By Dr. Kiminori Itoh Of Yokohama National University,” Climate Science: Roger Pielke Sr. Research Group News.  June 17, 2008. Archived Feb 15, 2009.

  2. Japanese IPCC scientists says global warming 'worst scientific scandal',” The Orange County Register, June 18, 2008.

  3. Heartland Experts: Kiminori Itoh,” The Heartland Institute, Accessed November 20, 2011.

  4. Climate Change Reality,” The Cato Institute.

  5. Joe Weisenthal. “The 10 Most-Respected Global Warming Skeptics,” Business Insider,

  6. July 30, 2009.”Guest Weblog By Kiminori Itoh 'Soot And The Arctic Ice – A Win-Win Policy Based On Chinese Coal Fired Power Plants',” Pielke Research Group, August 21, 2009.

  7. UN Blowback: More Than 650 International Scientists Dissent Over Man-Made Global Warming Claims,” U.S. Senate Committee on Environment and Public Works, Minority Page, December 10, 2008.

  8. UN Scientists Who Have Turned on UNIPCC Man-Made Climate Fears - A Climate Depot Flashback Report,” Climate Depot, August 21, 2013