The answer to global warming is in the abolition of private property and production for human need. Louis Proyect, Columbia University
This is treason. And we need to start treating them [opponents of global warming] as traitors. Robert F Kennedy, 21st January 2008
If you have to ask me now what the chances are our civilisation reaching the turn of the century I would have to say one or two per cent if we are lucky. Dr Paul Ehrlich, author Eco-Catastrophe! Horizon, BBC 1971
Environmental organizations are fermenting false fears in order to promote agendas and raise money. Michael Crichton
Very little to do with science and ecology ... I realised that the movement I had started was being taken over by politicos. Dr Patrick Moore, cited Penn & Teller, Bullshit! s1e13: Environmental Hysteria
These days if you are sceptical about the litany around climate change, you’re suddenly like as if you are a holocaust denier. The environmental movement – it is really a political activist movement, and they have become hugely influential at a global level. And every politician is aware of that today. Patrick Moore
We’re just being told lies; that’s what it boils down to. Nigel Calder, former editor New Scientist
Spitting fury at anybody who disagrees with them, and that is not the scientific way. The whole global warming business has become like a religion, and people who disagree are called heretics. Nigel Calder
Few things annoy me more than to hear people talking about carbon dioxide as being a pollutant. Nigel Calder
In The Weather Machine [1974] we reported the mainstream opinion of the time which was global cooling and the threat of a new ice age. Nigel Calder
I have often heard it said that there is a consensus of thousands of scientists on the global warming issue, and that humans are causing a catastrophic change to the climate system. Well I am one scientist and there are many that simply think that is not true. Professor John Christy, IPCC
A quasi-religious register of doom, death, judgement, heaven and hell, using such words as catastrophe, chaos and havoc. Gill Ereaut and Nat Segnit, ‘Warm Words: How Are We Telling the Climate Story and Can We Tell It Better?’ August 2006
No I wouldn’t think there was any evidence for a catastrophic change in our climate at the present time. There is no evidence at all. Professor Reginald Newell
I don’t know why they are taking the models seriously. Professor Reginald Newell
There were periods for example in Earth’s history when we had for three times as much CO2. Or periods when we had ten times as much CO2. Professor Nir Shaviv, Institute of Physics University of Jerusalem
There are in fact two distinct warmings here ... Global warming is real ... Get over it. Dr Patrick Michaels, sceptics’ conference speech
Anyone who goes around and says that carbon dioxide is responsible for most of the warming of the twentieth century hasn’t looked at the basic numbers. Patrick Michaels
We should remember that when I was going to graduate school it was gospel that the new ice age was about to start. And to tell the truth I had trouble warming up to that one too. Patrick Michaels
The entire global climate change hysteria is driven by computer models. Patrick J Michaels
When people say, Well you don’t believe in global warming, I say, No I believe in global warming; I don’t believe that human CO2 is causing that warming. Professor Tim Ball
About five thousand years ago the world was much warmer than it is today. Tim Ball
Climate change due to humans is shown to be wrong. Tim Ball
Inevitably, the moment politicians put their weight behind something and attach their name to it, in some ways of course money will flow. Professor Philip Stott
The sun is driving climate change: CO2 is irrelevant. Dr Piers Corbyn
The origin of our solar weather technique of long-range forecasting came originally from the study of sun spots and a desire to predict those. Piers Corbyn, Weather Action
I think most scientists I know feel it would be very difficult to say anything about this record as it stands. Professor Richard Lindzen
If you look at the real world let’s say over the past hundred, hundred and fifty years or so, and you find that there has been no significant warming. Dr Sherwood Idso
CO2 has an influence but it’s certainly not significant enough for us to worry about. Professor Tim Patterson, Canadian parliamentary testimony 10th February 2005
Many things we thought we knew about the climate system just a few years ago are now proving to be highly uncertain or quite mistaken. ibid.
We can’t say that CO2 will drive climate. It certainly never did in the past. Professor Ian Clark
51,438. There is no evidence of humans being the cause. There is however overwhelming evidence of natural causes. Professor Ian Clark
But taken as a whole, you cannot say that there has been statistically speaking any significant change in sea-ice concentration throughout the Antarctic. Dr Julian Paren, British Antarctic Survey
What A Climate Con! Glaciers that don’t melt, polar bears that aren’t dying, temperatures that haven’t increased – why global warming is nonsense. Daily Express headline
Now there are lies, damned lies and global warming. Daily Express article
The truth about global warming – it’s the Sun to blame. Telegraph online article 17th July 2004
The alarmists have an awful lot of explaining to do – they receive an awful lot more in industry and industry-related funding every year. Chris Horner, author Politically Incorrect Guide to Global Warming
Much of the mainstream media has subverted its role as an objective source of information on climate change. Senator James Inhofe, chairman Environment and Public Works Committee, 6th December 2006
There is no question that climate change is happening; the only arguable point is what part humans are playing in it. David Attenborough
[W]hen we look at the graphs of rising ocean temperatures, rising carbon dioxide in the atmosphere and so on, we know that they are climbing far more steeply than can be accounted for by the natural oscillation of the weather ... What people (must) do is to change their behavior and their attitudes ... If we do care about our grandchildren then we have to do something, and we have to demand that our governments do something. David Attenborough
Right now we are facing our greatest threat in thousands of years: climate change. Scientists across the globe are in no doubt that at the current rate of warming we risk a devastating future … We are facing a man-made disaster on a global scale. David Attenborough, Climate Change: The Facts, BBC 2019
If we have not taken dramatic action in the next decade, we could face irreversible damage to the natural world and the collapse of our societies. We are running out of time but there is still hope. ibid.
If we do not change our negative habits toward climate change, we can count on worldwide disruptions in food production, resulting in mass migration, refugee crises and increased conflict over scarce natural resources like water and farm land. This is a recipe for major security problems. Michael Franti
How is it that, in the face of overwhelming scientific evidence, there are still some who would deny the dangers of climate change? Not surprisingly, the loudest voices are not scientific, and it is remarkable how many economists, lawyers, journalists and politicians set themselves up as experts on the science. Nicholas Stern
The basic scientific conclusions on climate change are very robust and for good reason. The greenhouse effect is simple science: greenhouse gases trap heat, and humans are emitting ever more greenhouse gases. Nicholas Stern