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Climate change is fake [mod warning - controversial topic - enter at your own risk]

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Western Lord

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Most of the world's scientists may believe in man made climate change and they may be right, but I have zero faith in scientists ability to predict the future. If you had put top scientists in a room a hundred years ago and told them that the population of the UK would be 65 million by the early part of the 21st century and asked them what the implications would be for energy supply, they would have said that there would have to be a massive increase in coal mining. Electricity was produced using coal, gas was produced using coal, people heated their homes with coal, the railways ran on coal etc. We now know they would have been wrong, but what we now know is not all that we will ever know, unless you believe that we have discovered everything that can be discovered and invented everything that can be invented.
I am not convinced that there are more extreme weather events than in the past. We just hear more about them as today we live in a world of instant worldwide communication whereas a hundred and fifty years ago it could take weeks for news from the other side of the world to reach us and it would usually not be widely reported if, as The Times allegedly used to put it, "no British were involved". Weather events that affect thousands of people today would have gone unnoticed in the past as a location that is currently a town of a hundred thousand people would, one hundred and fifty years ago, been a couple of fishermen's huts. There's more people on the planet to be affected by weather events and it seems they've almost all got smart phones.
 
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rdeez

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You’re picking on the wrong part of the argument. Understanding of science has never stopped evolving and never will. A lot can change and be discovered in centuries based on better understanding and better experimentation. I’m not a climate change denier, but I’m a rational scientist. It would be silly to assume we already understand everything about our vast planet and its mechanisms.

Still a non-argument. On that basis, we should ignore everything we think we know now because we might find something different in a century.

I get your point, but I don't see how it is helpful in any way. If we don't act on what we know now and it proves to be right, the consequences are disastrous. We do not have the luxury of sitting back and waiting to see how things pan out.

If you're really a "rational scientist", on the basis of the evidence already available, you should be advocating precautionary action.
 

tony_mac

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I am not convinced that there are more extreme weather events than in the past. We just hear more about them as today we live in a world of instant worldwide communication whereas a hundred and fifty years ago it could take weeks for news from the other side of the world to reach us and it would usually not be widely
Do you know that this has occurred to scientists as well? It's pretty basic to take that sort of thing into account whenever you try to compare from different data sources.

If you had put top scientists in a room a hundred years ago and told them that the population of the UK would be 65 million by the early part of the 21st century and asked them what the implications would be for energy supply, they would have said that there would have to be a massive increase in coal mining
Some might have done, but many would have had other ideas. I'm sure that they would have all said 'we don't really know what technology might be available in 100 years' - electricity generation by coal was still a new industry, so they would all have been aware that things change.
(Btw - the population 100 years ago was about 40 million, so it isn't such a massive change. The population in the previous 100 years had actually grown by a much greater amount.)

I imagine that if you knew a bit more about science then you might actually trust scientists a bit more.
 

Western Lord

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Do you know that this has occurred to scientists as well? It's pretty basic to take that sort of thing into account whenever you try to compare from different data sources.


Some might have done, but many would have had other ideas. I'm sure that they would have all said 'we don't really know what technology might be available in 100 years' - electricity generation by coal was still a new industry, so they would all have been aware that things change.
(Btw - the population 100 years ago was about 40 million, so it isn't such a massive change. The population in the previous 100 years had actually grown by a much greater amount.)

I imagine that if you knew a bit more about science then you might actually trust scientists a bit more.

Don't be so patronising. You have no knowledge of my knowledge of science.
 

edwin_m

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You’re picking on the wrong part of the argument. Understanding of science has never stopped evolving and never will. A lot can change and be discovered in centuries based on better understanding and better experimentation. I’m not a climate change denier, but I’m a rational scientist. It would be silly to assume we already understand everything about our vast planet and its mechanisms.
If we had that sort of knowledge then we could predict in detail what was going to be happening and what had to be done to stop it. Unfortunately that lack of certainty gives people wiggle room to ignore or deny the issue. As far as I'm concerned there's enough certainty to warrant action now, because if we wait until we are absolutely certain it will be too late to do anything about it.
 

Busaholic

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Donald Trump and Piers Corbyn (close to his brother Jeremy) have in common their disbelief in climate change; says it all, really :lol:
 

DynamicSpirit

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Don't be so patronising. You have no knowledge of my knowledge of science.

You have however written a post that arguably no-one with a decent understanding of science and of how science works would have written - because it's so obviously flawed in the assumptions it makes about science. From that, I'd say that it's possible to infer quite a bit about your knowledge of/your attitude towards science.
 
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Bevan Price

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Some politicians' views can be dependent from where they - or their party - receive "political donations".
If you get a lot of money from the "fossil energy" industry, you are much more likely to be sceptical about global warming.
If you get a lot of money from the "arms industry", you are likely to oppose gun control, etc., etc.

And likewise, if scientists are funded by "certain industries", you may possibly need to be sceptical about some of their statements relating to those industries. Some have high principles, and will always publish their version of the truth; others - as used to happen with tobacco - will be reluctant to publish anything that might interfere with future funding.
 
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Western Lord

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You have however written a post that arguably no-one with a decent understanding of science and of how science works would have written - because it's so obviously flawed in the assumptions it makes about science. From that, I'd say that it's possible to infer quite a bit about your knowledge of/your attitude towards science.
You come across as a rather arrogant person who believes that their own interpretation is the only one, which is not very scientific. I made no scientific claims at all. Your faith in scientists is misplaced. It was, presumably, scientists who told the government that diesel cars would be a good thing.
 

AM9

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You come across as a rather arrogant person who believes that their own interpretation is the only one, which is not very scientific. I made no scientific claims at all. Your faith in scientists is misplaced. It was, presumably, scientists who told the government that diesel cars would be a good thing.
Actually, diesel cars were determined to be less of a threat to climate change, (which is still true). Their CO2 contribution is about half that of petrol engines. So inn promoting them in preference to petrol combustion, the climate scientists were and are correct.
Diesel engines in close proximity to people, particularly densely populated areas is a health hazard, which together with the creative engineering of fuel management systems by most of the major engine manufacturers, once made public caused the current panic. The elephant in the room is the continued use of IC engines for urban and other short distance travel, not whether they are diesel or petrol fuelled. In 50 years time, diesels will probably still be in common use, although not as domestic run-arounds, vans or local buses. Developments in removing harmful particulates and NOx pollution will probably ensure that they can still be used where offering the appropriate solution for stand-alone power, where their lower CO2 emissions can be accommodated.
 

yorkie

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You come across as a rather arrogant person who believes that their own interpretation is the only one, which is not very scientific. I made no scientific claims at all. Your faith in scientists is misplaced. It was, presumably, scientists who told the government that diesel cars would be a good thing.
On the contrary; your views are misplaced and the other members who are disagreeing with you are posting accurate information and come across very well, in my opinion.
 

DerekC

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. It was, presumably, scientists who told the government that diesel cars would be a good thing.

Diesel cars are actually rather a good example - and kind of on-topic. Anyone who listened carefully to the designers of diesel engines would have heard that they are inherently more fuel efficient than petrol engines, so emit less carbon dioxide (so good for global warming), but more smoke particles and oxides of nitrogen (NOx) (so bad for people who live near roads). The smoke and NOx can be reduced, but at the expense of some of the fuel efficiency. So it's a balance. And for a while it seemed that the better fuel efficiency and less CO2 was more important so diesels were good.
Then a combination of poor regulatory standards and VW (and others) cheating made it look as though you could have both very good fuel efficiency and low NOx emissions. Then petrol engines got more efficient, people got more concerned about the effects of direct pollution and VW got found out, so diesels are bad.

It kind of boils down to that you can't have everything, advances in technology are unpredictable and governments regularly get things wrong, none of which should be a surprise to anybody - but the important point for me is that the science behind it hasn't changed and is what you should base your own judgements on.

It's not hard for anybody to understand the science behind climate change. Yes, of course the sun affects the global temperature and it varies a bit, but we definitely can't fix that. If you look at the evidence over millions of years (not thousands as shown in the graphs shown earlier in this thread) it's very clear that man-made emissions are driving the planet into uncharted territory. I don't want my grandchildren to have to cope with the consequences.
 

DynamicSpirit

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You come across as a rather arrogant person who believes that their own interpretation is the only one, which is not very scientific. I made no scientific claims at all. Your faith in scientists is misplaced. It was, presumably, scientists who told the government that diesel cars would be a good thing.

Again, you're demonstrating that you don't really understand how science works. I'd really advise you to get yourself a bit better informed before you keep commenting on things that you clearly don't understand. Science doesn't really deal with value judgements (although of course, individual scientists are human beings and will make value judgements). The decision to promote diesel cars back in the 2000s was a political decision, not a scientific one.

Of course none of us have access to the detailed thinking that lead to that policy on diesel cars, but making some educated guesses: I would think it's most likely that would have happened is this: Back in the 2000's, the scientists would have told the Government what was understood about diesel engines: That they produce less CO2 per mile travelled but produce more particulates. Someone in the Government (presumably, a politician or a civil servant) then made the value judgement that the Government should care more about CO2 emissions than about particulates - and therefore started promoting diesel cars. A policy that we now know with hindsight was very misguided - especially as more evidence emerged over the next decade or so of just how bad particulates are for people's health.

You seem to be trying to make out the diesel cars things was all the scientists fault and trying to present diesel cars as a reason for distrusting scientists. It's not. It's rather a demonstration of how careful you have to be when politicians interact with scientists!
 

Western Lord

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On the contrary; your views are misplaced and the other members who are disagreeing with you are posting accurate information and come across very well, in my opinion.
Really? Which "views" do you believe that I have expressed are misplaced. I have not expressed any views on the subject, you and a couple of others, have decided that they know what my views are. You don't. I do not believe that scientists know everything and are infallible, nor do I believe that they can predict the future. They are making guesses. Informed guesses perhaps, but guesses nonetheless
 

GW43125

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Donald Trump and Piers Corbyn (close to his brother Jeremy) have in common their disbelief in climate change; says it all, really :lol:
Piers Corbyn once came into my school to talk about his beliefs around climate change. Cue an entire hall of students trying not to hit him.

And the moon landings were faked
If they were, the Russians would've said something and not given the Americans the glory. They followed it all the way there.
 

DynamicSpirit

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You don't. I do not believe that scientists know everything and are infallible, nor do I believe that they can predict the future.

So, do you believe that the well established science of climate change is correct, and that the climate is changing rapidly as a result of human activiities (primarily CO2 emissions), or not?

They are making guesses. Informed guesses perhaps, but guesses nonetheless

That's unfair. What the climate scientists are doing is more robust than simply guessing. They are essentially doing mathematical modelling, based on the huge amount of data they have about the change in composition of the atmosphere over time, about human activities, about the known physical properties of the oceans and the atmosphere and other aspects of our eco-systems. And they are backing that up with experimental evidence - such as comparing previous predictions with what subsequently happened. It's not really much different in principle from what - say - an engineer would do when he does mathematical modelling to test - for example - how aerodynamic and crash-resistant a particular design of vehicle is likely to be. It's an awful long way from sticking your finger in the air and making a random guess.
 

cb a1

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You come across as a rather arrogant person who believes that their own interpretation is the only one, which is not very scientific.
Saw a pertinent tweet today.

"When people call you intelligent it is almost always because they agree with you. Otherwise, they would call you arrogant.
Nassim Nicholas Taleb"

I liked it so much I've made it my signature.
 

AlterEgo

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You come across as a rather arrogant person who believes that their own interpretation is the only one, which is not very scientific. I made no scientific claims at all. Your faith in scientists is misplaced. It was, presumably, scientists who told the government that diesel cars would be a good thing.

The same person who boasts a good knowledge of science also says scientists shouldn’t be trusted. The cognitive dissonance is palpable.
 

DerekC

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That's unfair. What the climate scientists are doing is more robust than simply guessing. They are essentially doing mathematical modelling, based on the huge amount of data they have about the change in composition of the atmosphere over time, about human activities, about the known physical properties of the oceans and the atmosphere and other aspects of our eco-systems. And they are backing that up with experimental evidence - such as comparing previous predictions with what subsequently happened. It's not really much different in principle from what - say - an engineer would do when he does mathematical modelling to test - for example - how aerodynamic and crash-resistant a particular design of vehicle is likely to be. It's an awful long way from sticking your finger in the air and making a random guess.

Whilst I agree it's a long way from guesswork, the problem is that you can't do physical tests to validate the modelling in the way you do with aerodynamics or crash-resistance, so there is more room for doubt. But the potential consequences of getting it wrong are so huge that we have to go with the the vast majority of expert opinion based on the theory, the evidence and the prediction. I can understand honest disagreement- that's fine. What makes me cross is people who make out that it's all a fake - i.e. a story made up for some ulterior purpose.
 

whhistle

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I don't doubt some of the information, but I'm in NO doubt humans are not helping the Earth's situation.
Even in the past few years, I've noticed how we're getting more extreme weather, but much milder winters overall.
 

squizzler

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I'm not surprised that the establishment 133t want us not to pay any heed to climate change because their stranglehold on a fossil fuel drive economy is being disrupted by the dispersal of energy generation allowed by renewables.

Trying to convince us it does not exist might, I fear, perhaps be a little ambitious even for people with large sections of the mainstream media in their pocket. Fair play for trying though!
 

Confused52

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So, do you believe that the well established science of climate change is correct, and that the climate is changing rapidly as a result of human activiities (primarily CO2 emissions), or not?



That's unfair. What the climate scientists are doing is more robust than simply guessing. They are essentially doing mathematical modelling, based on the huge amount of data they have about the change in composition of the atmosphere over time, about human activities, about the known physical properties of the oceans and the atmosphere and other aspects of our eco-systems. And they are backing that up with experimental evidence - such as comparing previous predictions with what subsequently happened. It's not really much different in principle from what - say - an engineer would do when he does mathematical modelling to test - for example - how aerodynamic and crash-resistant a particular design of vehicle is likely to be. It's an awful long way from sticking your finger in the air and making a random guess.

The model data as I understand it is input in to what is essentially a weather forecasting engine, since it solves the same equations. The area involved is much greater and the resolution more coarse. The current state of weather forecasting I have heard is that it is generally believe to be impossible to forecast more than two weeks ahead. This is because the weather is a chaotic (non-linear) system. That means that the assumptions, that is the parameters in the model pretty much guarantee a particular outcome. The reality is that there is no set of parameters which I have ever heard of that can correctly predict what has happened in the past on a basis that continues to work past the point for which the parameters were set.

In essence, that says to me, that the models do not actually work.

There is still the basic Physics that tells us of warming by greenhouse gases but there is much dispute about the sensitivity to that concentration by scientists that are not cranks, although they may be inconvenient - such as Judith Curry.

The main IPCC reports are written by civil servants who summarise what scientists have said to meet political objectives. So you need to read the detail of the science reports, which are encyclopaedic and often conflicting between the groups, and not the headlines.

That report that said that 97% of Scientists believe in Anthropogenic Climate Change has been demonstrated to be an engineered result that should be disregarded. The evidence is out there to be found, but if your confirmation bias troubles you don't bother looking - or berating me about it either.

Science does not work on consensus, a point made with great clarity by the likes of Albert Einstein and Richard Feynman in the past
 

DerekC

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The model data as I understand it is input in to what is essentially a weather forecasting engine, since it solves the same equations. The area involved is much greater and the resolution more coarse. The current state of weather forecasting I have heard is that it is generally believe to be impossible to forecast more than two weeks ahead. This is because the weather is a chaotic (non-linear) system. That means that the assumptions, that is the parameters in the model pretty much guarantee a particular outcome. The reality is that there is no set of parameters which I have ever heard of that can correctly predict what has happened in the past on a basis that continues to work past the point for which the parameters were set.

In essence, that says to me, that the models do not actually work.

I think you are mixing up climate and weather. The models may well be inaccurate in predicting what the impact of climate change in a particular area will be, but it appears to me inescapable that global temperatures will rise, ice will continue to melt and sea levels will rise substantially. That in itself should be sufficient for us to try to avoid it, without the probable consequences in terms of loss of food production if the predictions of desertification are right.
 

Confused52

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I think you are mixing up climate and weather. The models may well be inaccurate in predicting what the impact of climate change in a particular area will be, but it appears to me inescapable that global temperatures will rise, ice will continue to melt and sea levels will rise substantially. That in itself should be sufficient for us to try to avoid it, without the probable consequences in terms of loss of food production if the predictions of desertification are right.
No I'm not mixing up climate and weather, I said that the equations were the same but the time period is much longer for climate. What is described by you as inescapable is at present a matter of faith to which you are entitled but I don't have to subscribe to without a good deal better proof than I have seen so far from the IPCC.
 

edwin_m

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No I'm not mixing up climate and weather, I said that the equations were the same but the time period is much longer for climate. What is described by you as inescapable is at present a matter of faith to which you are entitled but I don't have to subscribe to without a good deal better proof than I have seen so far from the IPCC.
The increasing level of CO2 in the atmosphere can be measured by comparing today with trapped air from ice cores and similar. The relationship of increased CO2 to less outward radiation of heat seems to me to be a matter of fairly simple atmospheric physics. So it should be possible to estimate the increased amount of heat in the atmosphere and by estimating the thermal mass of the air and sea to get some understanding of what it does for temperature in a simple system.

Only then does it start getting complicated, because the planet has many feedback mechanisms both positive and negative. But the simple calculation ought to be enough to establish that more solar heat is reaching the planet than the amount radiated out, and therefore that some degree of global warming is a reality. From there I'd suggest the precautionary principle takes over and it becomes necessary to take serious notice because we have big problems even towards the lower end of the range of predicted consequences. This would be the right course of action even if it turns out scientific opinion has got it wrong and there isn't actually a problem. Britain hasn't been invaded for several centuries but I don't hear many people saying we should disband the armed forces.
 

DynamicSpirit

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The model data as I understand it is input in to what is essentially a weather forecasting engine, since it solves the same equations. The area involved is much greater and the resolution more coarse. The current state of weather forecasting I have heard is that it is generally believe to be impossible to forecast more than two weeks ahead. This is because the weather is a chaotic (non-linear) system. That means that the assumptions, that is the parameters in the model pretty much guarantee a particular outcome. The reality is that there is no set of parameters which I have ever heard of that can correctly predict what has happened in the past on a basis that continues to work past the point for which the parameters were set.

That is not my understanding. You are correct that it's very hard to predict the weather on a particular date far in advance because the weather is chaotic and can vary so much from day-to-day. However, predicting the climate is more akin to predicting the average weather - and that is a very different - and arguably much simpler problem. And will certainly not involve all the same equations. It's a bit like: You may be able to predict that the average temperature in February in a certain location will be between 1C and 5C, even though you can't predict what the weather will be at 4pm on 16th February at that location.

In essence, that says to me, that the models do not actually work.

The trouble is, when you say that, what you're essentially saying is that climate scientists don't know how to do their jobs. And that's a pretty huge statement to make (Imagine if I came on railforums and, as a non-train-driver, I accused most train drivers of not being able to do their jobs. Can you imagine what the reaction would be! But that's the equivalent of what you're doing).

I myself worked in physics research for some time (so not a climate science specialist, though I did have some contact with climate scientists) so I have some first-hand knowledge of how science works. And a key thing is that, in academic science, there is a huge kudos associated with being able to find a flaw in existing theories or in someone else's published work - precisely because that's one of the main ways that science advances. So you have thousands of scientists, all of whom have some personal interest in being able to spot flaws in established climate science. You can be pretty certain that, in that situation, if there was a problem with the models not working, it would get noticed and acted on pretty quickly. The fact that the overwhelming consensus amongst climate scientists remains that the models are good therefore amounts to extremely good evidence that the models are in fact pretty good.

There is still the basic Physics that tells us of warming by greenhouse gases but there is much dispute about the sensitivity to that concentration by scientists that are not cranks, although they may be inconvenient - such as Judith Curry.

Yes those people exist, but they remain in a tiny minority. I would say that, really, unless you are a climate scientist and therefore are in a position to independently evaluate what each individual is saying, the responsible position to take is to assume that the majority opinion is probably correct.

The main IPCC reports are written by civil servants who summarise what scientists have said to meet political objectives. So you need to read the detail of the science reports, which are encyclopaedic and often conflicting between the groups, and not the headlines.

That report that said that 97% of Scientists believe in Anthropogenic Climate Change has been demonstrated to be an engineered result that should be disregarded. The evidence is out there to be found, but if your confirmation bias troubles you don't bother looking - or berating me about it either.

Well, firstly, I'm well aware of the problem of politicians or civil servants who don't understand science writing reports. That's why I take my information about climate science from well respected scientific institutions - such as the Royal Society. As far as I can tell, IPCC etc. reports, do not significantly conflict with what scientific bodies are saying. Secondly, I have looked atr climate sceptic sites - in response to previous discussions. I have yet to find any climate-sceptic site that shows understanding of science or of how science works. To some extent this comes from looking at those sites with my background as an ex-physics researcher, and it is somewhat hard to explain this... but whenever I've looked at those sites, it's very obvious to me that they are making basic scientific errors and often using conspiracy theory or emotive language in a way that is not scientific and would not be done by trained scientists - but in a way that most laymen would probably not be able to spot. Based on all that experience, I simply do not believe you that the evidence is to be found: Simply because all my experience is that sites that claim this evidence is there are invariably sites that distort or misrepresent science.
 
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Bevan Price

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There have always been people who refuse to accept scientific evidence. For example, there are still people who believe that the earth is flat - despite the vast amount of evidence to the contrary, e.g.
https://wiki.tfes.org/Flat_Earth_-_Frequently_Asked_Questions

So hardly surprising that some people refuse to recognise that climate change is real. And even less surprising that some people who oppose methods to reduce global warming are also people with financial interests in the continued production & use of fossil fuels.
 

Confused52

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The trouble is, when you say that, what you're essentially saying is that climate scientists don't know how to do their jobs. And that's a pretty huge statement to make (Imagine if I came on railforums and, as a non-train-driver, I accused most train drivers of not being able to do their jobs. Can you imagine what the reaction would be! But that's the equivalent of what you're doing).

No I am not saying that. They are doing the best they can but if you ask then for the potential error in their estimates they are huge. This is because the problem of simulating a non-linear system the size of the whole earth is huge. Anyone who says they understand all the mechanisms is proved wrong on an almost daily basis.

Interesting that you quote the Royal Society, who merely parroted what was in the IPCC summary so are unlikely to be seen by you to disagree, they did no original work. I am surprised that you include Richard Tol in that broadside ( http://richardtol.blogspot.com/2015...3/now-almost-two-years-old-john-cooks-97.html), Richard was an IPPC lead author and contributed to the Economics working group.
 
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