"As a practical matter of politics, nobody knows what Kyoto is or what it commits us to."

"The Kyoto Protocol is a political solution to a non-existent problem without scientific justification."

"Isn't the only hope for the planet that the industrialized civilizations collapse? Isn't it our responsibility to bring that about?"

"Consensus is the business of politics. If it's consensus, it isn't science. If it's science, it isn't consensus. Period."

“Until a continuous climate observing system is established, both climate models and observations will remain uncertain.”

“We can no longer absolutely conclude whether globally the troposphere is cooling or warming relative to the surface.”

"We only understand 10 percent of the climate issue. That is not enough to wreck the world economy with Kyoto-like measures".

“The minute you begin to believe your own hypothesis, you’re a dead duck as a scientist.”

"We've got to ride the global-warming issue. Even if the theory of global warming is wrong, we will be doing the right thing, in terms of economic policy and environmental policy."

"Not only do journalists not have a responsibility to report what skeptical scientists have to say about global warming, they have a responsibility not to report what these scientists say."

"I would freely admit that on global warming we have crossed the boundary from news reporting to advocacy."

"I think if we don't overthrow capitalism, we don't have a chance of saving the world ecologically."

"No matter if the science is all phony, there are collateral environmental benefits...Climate change provides the greatest chance to bring about justice and equality in the world."

"Skepticism is the highest of duties, and unverified belief the one unpardonable sin"

"Some people will do anything to save the earth . . . except take a science course".

“A global warming treaty must be implemented even if there is no scientific evidence to back the [enhanced] greenhouse effect.”

"We have to offer up scary scenarios (about global warming) ... …each of us has to decide what the right balance is between being effective and being honest."

"I’ve just completed Mike’s Nature trick … to hide the decline."

"Mike, Can you delete any emails you may have had with Keith regarding the latest IPCC report? Keith will do likewise. …Can you also email Gene and get him to do the same?”

“There is no reason to give them any data, in my opinion, and I think we do so at our own peril!”

"The fact is that we can't account for the lack of warming at the moment and it is a travesty that we can't.”

“We are nowhere close to knowing where energy is going or whether clouds are changing to make the planet brighter … We are not close to balancing the energy budget.”

"No reviewer has ever asked to see the data"

“Kevin and I will keep them out [of the IPCC Report] somehow—even if we have to redefine what the “peer-review literature” is!”

“If they [McIntyre and McKitrick] ever hear there is a Freedom of Information Act now in the United Kingdom, I think I’ll delete the file rather than send it to anyone.”

“If I were on the greenhouse deniers’ side, I would .. focus on the wide range of paleoclimatology results and the differences between them as an argument for dismissing them all.”

“Very little research has ever been funded to search for natural mechanisms of warming... it has simply been assumed that global warming is manmade.”

“Everyone in IPCC WG3 should be terminated and, if the institution is to continue, it should be re-structured from scratch.”

"Why should I make the data available to you, when your aim is to try and find something wrong with it?" Phil Jones, Director of Climate Research Unit, UEA, UK.

"Mike, the figure you sent is very deceptive [...] there have been a number of dishonest presentations of model results by individual authors and by IPCC"

“Observations do not show rising temperatures throughout the tropical troposphere ... This is just downright dangerous.”

“The trick may be to decide on the main message and use that to guide what's included and what is left out [of the IPCC Reports].”

“But it will be very difficult to make the MWP [Medieval Warm Period] go away in Greenland.”

“What if climate change appears to be just mainly a multidecadal natural fluctuation? They'll kill us probably”

“Weighting the solar irradiance more strongly in the models, then much of the 19th to mid 20th century warming can be explained from the sun alone.”

“I am not convinced that the "truth" is always worth reaching if it is at the cost of damaged personal relationships”

“This will reduce the 1940-1970 cooling in Northern Hemisphere temperatures. Explaining the cooling with sulphates won't be quite as necessary.”

“It is interesting to see the lower tropospheric warming minimum in the tropics in all three plots, which I cannot explain. ...it is remarkably robust against my adjustment efforts.”

“I also got recently a paper from Rob which says "London's UHI [Urban Heat Island effect] has indeed become more intense since the 1960s especially during spring and summer".”

“We found the [urban warming] effect is pretty big in the areas we analyzed. Unfortunately, when we sent our comments to the IPCC AR4, they were mostly rejected.”

“I'm sure you agree--the Mann/Jones GRL paper was truly pathetic and should never have been published.”

“How can we be critical of Crowley for throwing out 40-years in the middle of his calibration, when we're throwing out all post-1960 data”

“It will not be models or theory, but observation that will provide the answer to the question of how the climate will change in many decades time.”

“There is no individual model that does well in all of the SST [sea surface temperature] and water vapor tests we've applied.”

“I doubt the modeling world will be able to get away with this [tuning] much longer”

“So using the 20th century for tuning [the IPCC models] is just doing what some people have long suspected us of doing”

“Basic problem is that all models are wrong - not got enough middle and low level clouds.”

“I've been told that IPCC is above national FOI Acts. One way to cover yourself and all those working in AR5 would be to delete all emails at the end of the process”

“Any work we have done in the past is done on the back of the research grants we get - and has to be well hidden.”