Here is a very small sampling of what current and former UN scientists have to say about the UN's claims and its scientific methods. (Presumably, these skeptical UN scientists did not get Trenberth's memo on how to avoid being "poorly informed.")
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.” - UN IPCC Japanese Scientist Dr. Kiminori Itoh, an award-winning PhD environmental physical chemist.
“The IPCC has actually become a closed circuit; it doesn't listen to others. It doesn't have open minds... I am really amazed that the Nobel Peace Prize has been given on scientifically incorrect conclusions by people who are not geologists.” - Indian geologist Dr. Arun D. Ahluwalia at Punjab University and a board member of the UN-supported International Year of the Planet.
“Temperature measurements show that the [climate model-predicted mid-troposphere] hot zone is non-existent. This is more than sufficient to invalidate global climate models and projections made with them!”- UN IPCC Scientist Dr. Steven M. Japar, a PhD atmospheric chemist who was part of Intergovernmental Panel on Climate Change's (IPCC) Second (1995) and Third (2001) Assessment Reports, and has authored 83 peer-reviewed publications and in the areas of climate change, atmospheric chemistry, air pollutions and vehicle emissions.
UN IPCC Scientist Kenneth P. Green Declares 'A Death Spiral for Climate Alarmism' - September 30, 2009 - 'We can expect climate crisis industry to grow increasingly shrill, and increasingly hostile toward anyone who questions their authority' - Dr. Kenneth Green was a Working Group 1 expert reviewer for the United Nations' Intergovernmental Panel on Climate Change (IPCC) in 2001
'The whole climate change issue is about to fall apart -- Heads will roll!' -South African UN Scientist Dr. Will Alexander, April 12, 2009 - Professor Alexander, is Emeritus of the Department of Civil and Biosystems Engineering at the University of Pretoria in South Africa, and a former member of the United Nations Scientific and Technical Committee on Natural Disasters.
"I was at the table with three Europeans, and we were having lunch. And they were talking about their role as lead authors. And they were talking about how they were trying to make the report so dramatic that the United States would just have to sign that Kyoto Protocol," Christy told CNN on May 2, 2007. - Alabama State Climatologist Dr. John Christy of the University of Alabama in Huntsville, served as a UN IPCC lead author in 2001 for the 3rd assessment report and detailed how he personally witnessed UN scientists attempting to distort the science for political purposes.
“Gore prompted me to start delving into the science again and I quickly found myself solidly in the skeptic camp...Climate models can at best be useful for explaining climate changes after the fact.” -Meteorologist Hajo Smit of Holland, who reversed his belief in man-made warming to become a skeptic, is a former member of the Dutch UN IPCC committee.
“The quantity of CO2 we produce is insignificant in terms of the natural circulation between air, water and soil... I am doing a detailed assessment of the UN IPCC reports and the Summaries for Policy Makers, identifying the way in which the Summaries have distorted the science.” - South African Nuclear Physicist and Chemical Engineer Dr. Philip Lloyd, a UN IPCC co-coordinating lead author who has authored over 150 refereed publications.
“The claims of the IPCC are dangerous unscientific nonsense” - declared IPCC reviewer and climate researcher Dr Vincent Gray, of New Zealand in 2007. Gray was an expert reviewer on every single draft of the IPCC reports going back to 1990, author of more than 100 scientific publications. (LINK) & (LINK)
“After reading [UN IPCC chairman] Pachauri's asinine comment [comparing skeptics to] Flat Earthers, it's hard to remain quiet.” -Climate statistician Dr. William M. Briggs, who specializes in the statistics of forecast evaluation, serves on the American Meteorological Society's Probability and Statistics Committee and is an Associate Editor of Monthly Weather Review.
UN IPCC Lead Author Tom Tripp Dissents on man-made warming: 'We're not scientifically there yet' - July 16, 2009
Trenberth's claim that the UN IPCC is an "very open" also needs examining. The IPCC summary for policymakers is used to scare politicians and goad the public into action. The UN is all about politics.
UN special climate envoy Dr. Gro Harlem Brundtland declared "it's completely immoral, even, to question" the UN's alleged global warming "consensus," according to a May 10, 2007 article. Sounds scientific, doesn't it?
Dr. John Brignell, a UK Emeritus Engineering Professor at the University of Southampton who held the Chair in Industrial Instrumentation at Southampton, accused the UN of “censorship” on July 23, 2008. “Here was a purely political body posing as a scientific institution. Through the power of patronage it rapidly attracted acolytes. Peer review soon rapidly evolved from the old style refereeing to a much more sinister imposition of The Censorship. As Wegman demonstrated, new circles of like-minded propagandists formed, acting as judge and jury for each other. Above all, they acted in concert to keep out alien and hostile opinion. 'Peer review' developed into a mantra that was picked up by political activists who clearly had no idea of the procedures of science or its learned societies. It became an imprimatur of political acceptability, whose absence was equivalent to placement on the proscribed list,” Brignell wrote.Research by Australian climate data analyst John McLean revealed that the IPCC's peer-review process for the Summary for Policymakers leaves much to be desired. (LINK) (LINK) (LINK) & (LINK) McLean's research revealed that the UN IPCC peer-review process is "an illusion." McLean's study found that very few scientists are actively involved in the UN's peer-review process. The report contained devastating revelations to the central IPCC assertion that 'it is very highly likely that greenhouse gas forcing has been the dominant cause of the observed global warming over the last 50 years." The analysis by McLean states: "The IPCC leads us to believe that this statement is very much supported by the majority of reviewers. The reality is that there is surprisingly little explicit support for this key notion. Among the 23 independent reviewers just 4 explicitly endorsed the chapter with its hypothesis, and one other endorsed only a specific section. Moreover, only 62 of the IPCC's 308 reviewers commented on this chapter at all." Repeating: Only four UN scientists in the IPCC peer-review process explicitly endorsed the key chapter blaming mankind for warming the past 50 years, according to this recent analysis. To be continued .....