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

— Henk Tennekes, former research director, Dutch Royal Meteorological Institute

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

— Gabriele Hegerl, Nicholas School for the Environment and Earth Sciences, Duke University

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

— Thorne et al, BAMS Oct 2005

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

— Wielicki et al. Science June 21, 2002

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.

— Stephen Schneider, Stanford University environmentalist

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

— Michael Crichton, author

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

— Tim Osborn, Climatic Research Unit, UEA, UK

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

— Tim Osborn, Climatic Research Unit, UEA, UK

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

— Tim Barnett, Scripps Institution of Oceanography, USA

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

— Phil Jones, Director of Climate Research Unit, UEA, UK.

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

— Phil Jones, Director of Climate Research Unit, UEA, UK.

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.

— Phil Jones, Director of Climate Research Unit, UEA, UK.

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

— Phil Jones, Director of Climate Research Unit, UEA, UK.

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

— P. J. O'Rourke, author, journalist

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

— Maurice Strong, former advisor to UN Secr-General Kofi Annan