Jones and CRU exonerated

Furthermore each chapter has it's own authors and reviewes. No one has ever claimed 2500 people reviewed every part of the report.
More on this,

The UN Climate Change Numbers Hoax (Canada Free Press)

An example of rampant misrepresentation of IPCC reports is the frequent assertion that ‘hundreds of IPCC scientists’ are known to support the following statement, arguably the most important of the WG I report, namely “Greenhouse gas forcing has very likely caused most of the observed global warming over the last 50 years.”

In total, only 62 scientists reviewed the chapter in which this statement appears, the critical chapter 9, “Understanding and Attributing Climate Change”. Of the comments received from the 62 reviewers of this critical chapter, almost 60% of them were rejected by IPCC editors. And of the 62 expert reviewers of this chapter, 55 had serious vested interest, leaving only seven expert reviewers who appear impartial.
Peer Review? What Peer Review? Failures of scrutiny in the UN's Fourth Assessment Report (PDF) (John McLean, Climate Data Analyst)
Prejudiced authors, Prejudiced findings (PDF) (John McLean, Climate Data Analyst)
 
Yes, it must be my fault. Just listing people's names with no explanation of their arguments
Yeah, imagine we started referring to science by people's names. We'd have ridiculous terms like "Hooke's law", "Boyle's law", "Newtonian mechanics" and "Darwinian evolution". That would be utterly absurd.

Oh. Hang on a minute.

You brought this up before. You claim that they punch holes in the IPCC, or some similar statement, how? Why are they wrong at RealClimate? You also claimed they didn't understand the paper, what did they miss?
And I've already told you where to look for an explanation of why they are so wrong. Koutsoyiannis explicitly responded to them. Notably, in a later RealClimate post, Rasmus actually acknowledges that he didn't fully grasp the concepts being put forward.

I don't accept your assertions merely because you make them.
I'm not asking you to. But then I don't claim to be a great teacher, and explaining some pretty complex ideas in a few forum posts is a waste of time. I don't know how much ground work to lay out because I have no idea how much you know. Do I need to explain the mathematics behind fractals first, or can we weigh in at a higher level? It is all pretty pointless. If you want to learn, go do it. Just don't wait for me to teach you something that probably requires a lecture course to follow within a few forum posts. Because that isn't going to happen.

What was incorrect in the IPCC? Surely not just the glaciers and the unpublished graph (that the RMS did say was used correctly).

You're attempting smear by aerial bombardment. Just come up with a slanted analogy, explain nothing, and doggedly hold to you initial claims.
My initial claims are well known so I see no need to explain them. Pielke made three specific claims about the IPCC report in his presentation (which was at the Royal Institution, not the Royal Society - my error). Why you reduced this to one claim I have no idea.

I am not going to spend my time researching your arguments.
I didn't ask you to spend time researching my arguments. People smart enough and interested enough will research it themselves. Everything I've discussed here is well known and in the public domain. If you don't want to learn, nobody is forcing you to.
 
The thing is, with the Iraq intelligence, there were tons of others in the same epistemic community who contradicted the US intelligence reports and said they were false.
LOL, I thought this was off topic. Hmm, apparently not.

Well, it would help if you knew a little bit about what you were talking about to begin with. The Iraq dossier was based on the Joint Intelligence Committee report... that's the UK intelligence group, not the US. And even though the UK and US intelligence probably talk to each other more than any other military intelligence agencies, it should be obvious that intelligence groups don't talk to each other much and don't trust what each other are saying. So your point is largely irrelevant.

This isn't the case at all with AGW. Here, the vast majority of the epistemic community is united in its consensus, with a few deniers and holdouts.
Bwahahaha!

Yes, emotive smears and assertions. There are so many errors with your statements. AGW consensus is not a scientific construct. But let's just assume, for a moment, that there was a consensus. Does that mean that the IPCC is good?

No. This is a false dichotomy. You can agree with the AGW consensus and disagree with the IPCC. And indeed many scholars do just this - I've already cited Roger Pielke Jr (who supports the consensus yet is a critic of the IPCC). Then we have the likes of Judith Curry, Mike Hulme, Chris Landsea...

So clearly, even if we accept the notion of consensus (which is subject to debate itself), this does not in itself support the IPCC report or process. You cannot draw the conclusions from your premise.

If you're looking for a parallel with the way the Iraq war agenda was pushed forward, you might instead consider the way the denialists have been preferentially cited by politicians seeking to stymie efforts to address global warming.
I'm surprised at how good the Iraq dossier comparison is turning out to be. The arguments you lot are making are almost identical to those made be Blair, Campbell etc. Because you are all taking entrenched positions and throwing out all kind of statements (like TraneWreck's "astonishingly accurate", lol) without being able to see the polemic position that you are adopting.

It is entertaining to watch, from the outside.
 
And I've already told you where to look for an explanation of why they are so wrong. Koutsoyiannis explicitly responded to them. Notably, in a later RealClimate post, Rasmus actually acknowledges that he didn't fully grasp the concepts being put forward.

The better response to Cohn and Lin was by Halley,
http://www.sciencedirect.com/scienc...serid=10&md5=da7cd4260135d9a6b07934b992a52df1
for those who can get past the paywall, specifically that Cohn and Lin were computed both the variance and trend from the same time period. I've never understood how someone can compute the variance from the time period in which humans may have been influencing the temperature and use that computation to establish the limits of natural variability.

This is all academic as far as I'm concerned because long-term persistence must have some physical manifestation. Temperatures don't change because of statistical models.
 
Yeah, imagine we started referring to science by people's names. We'd have ridiculous terms like "Hooke's law", "Boyle's law", "Newtonian mechanics" and "Darwinian evolution". That would be utterly absurd.

[...]

I didn't ask you to spend time researching my arguments. People smart enough and interested enough will research it themselves. Everything I've discussed here is well known and in the public domain. If you don't want to learn, nobody is forcing you to.

I didn't realize Cohn and Lins were so well known. Now it's a total injustice that they were left out of the report when all one has to do to respond to critics is say their name with no explanation.

Look, you clearly don't want to discuss anything on the merits, meaning we have nothing to discuss. I think Cohn and Lins have been dealt with, you don't, I guess that's where it has to end.
 
The better response to Cohn and Lin was by Halley,
http://www.sciencedirect.com/scienc...serid=10&md5=da7cd4260135d9a6b07934b992a52df1
for those who can get past the paywall, specifically that Cohn and Lin were computed both the variance and trend from the same time period. I've never understood how someone can compute the variance from the time period in which humans may have been influencing the temperature and use that computation to establish the limits of natural variability.

This is all academic as far as I'm concerned because long-term persistence must have some physical manifestation. Temperatures don't change because of statistical models.

And by the way, this is what I mean by explanation. Telly doesn't write a dissertaion, he just summarizes the argument. Now anyone who wants to respond knows what he's talking about. We don't have to guess at his meaning because he tossed out a name.
 
LOL, I thought this was off topic. Hmm, apparently not.

Well, it would help if you knew a little bit about what you were talking about to begin with. The Iraq dossier was based on the Joint Intelligence Committee report... that's the UK intelligence group, not the US. And even though the UK and US intelligence probably talk to each other more than any other military intelligence agencies, it should be obvious that intelligence groups don't talk to each other much and don't trust what each other are saying. So your point is largely irrelevant.

They talk to their governments.

Russia and France both said their intelligence agencies didn't support American claims
http://isis-online.org/isis-reports...suaded-by-u.s.-assertions-on-iraq-wmd/#back56

The Germans have said that their intelligence agency doubted the US claims and questioned the reports of Curveball
http://en.wikinews.org/wiki/German_BND_claims_U.S._exaggerated_Iraq_WMD_claims

There is plenty on da net about how Bush et. al. selectively prioritized intelligence reports that justified war
http://www.salon.com/news/opinion/blumenthal/2007/09/06/bush_wmd/

This is exactly like denier politicians selectively prioritizing any report/paper/'evidence' that contradicts the consensus position.
 
You guys make good points. It's like we're stuck between a rock and a hard place.

The obvious problem, however, is that it is THESE portions that aren't peer reviewed that have spoiled public opinion on climate science.

Can anyone think of a realistic solution to this problem?

Those portions ARE peer reviewed too, but it seems they use somewhat looser standards than in the "scientific basis" part. Not that much though - gotta remember that there's been only one (1) real error found so far, so the other reports hold very well too. The other "errors" that have been found are just bad citations (the facts are correct, but the sources are poorly referenced)

This said, also the scientific basis report uses some "grey" sources: i.e. statistics from various countries, when there's no peer reviewed academic studies available.
 
My views are fairly well known I think.

Obviously there are known and agreed errors (e.g. Himalayan glaciers)

There are errors which are not uniformly agreed but are IMHO pretty clearly wrong (such as the link between AGW and disaster, which was debated recently at the Royal Society, and the IPCC position largely discredited as being against the consensus opinion at the time, and thoroughly discredited since)

My main bugbear is the problematic handling of uncertainty throughout AR4, in particular by omission through ignoring the work of Cohn, Lins, Koutsoyiannis et al. Their work has profound impact on the confidence intervals used throughout the report. It got little more than a paragraph in the second order draft which was removed to a single line in an appendix by the final version.

My position on this is well known amongst the AGW regulars on this topic and I don't think anything would be added here by going into detail. This is something which is not generally discussed amongst sceptics (I think it is a topic that is not widely understood by many people) but for the few that have engaged and actually understand the topic with any depth, it is a very serious issue indeed.

Koutsayannis is a waste of time. Imagine coming up with the finding that the models can't come up with predictions on a small scale. The modelers already told us that.
 
I didn't realize Cohn and Lins were so well known.
Amongst scientific circles, Tim Cohn is pretty well known; an AAAS Congressional Science Fellow and he sits on the governing board of the American Institute of Physics. But how well they are known is a straw man (as well you know). It is normal to refer to a scientist's work by their name.

Look, you clearly don't want to discuss anything on the merits, meaning we have nothing to discuss.
I would rephrase that. You have no intention of learning something new. The views are well known and in the peer-reviewed scientific literature. That doesn't make them right, but it means they are thorough enough to warrant consideration.

I think Cohn and Lins have been dealt with, you don't, I guess that's where it has to end.
The fact that you aren't even aware of the papers makes it all the more amusing when you claim they have been "dealt with".
 
Amongst scientific circles, Tim Cohn is pretty well known; an AAAS Congressional Science Fellow and he sits on the governing board of the American Institute of Physics. But how well they are known is a straw man (as well you know). It is normal to refer to a scientist's work by their name.


I would rephrase that. You have no intention of learning something new. The views are well known and in the peer-reviewed scientific literature. That doesn't make them right, but it means they are thorough enough to warrant consideration.


The fact that you aren't even aware of the papers makes it all the more amusing when you claim they have been "dealt with".

Right, just stay coy. Hint that they definitively do something, but don't say what it is.

There's peer review work contradicting them. THus, "dealt with."

Watch: Halley. See, the name of a scientist who says you're wrong. I win. And we never have to mention anything of substance.
 
And by the way, this is what I mean by explanation. Telly doesn't write a dissertaion, he just summarizes the argument.
Yep. And gets it utterly wrong, despite the fact that for him, I went into great detail explaining some of the ideas behind the work. Which underlines to me why explaining these things is a waste of time on JREF.

Now anyone who wants to respond knows what he's talking about.
You clearly don't. He misrepresents Halley's paper. If you had read and understood the paper, you'd know that. But you haven't, and you don't. Which is why explaining these things on JREF is a waste of time. (Can you see a pattern emerging here?)

We don't have to guess at his meaning because he tossed out a name.
No, in fact TellyKNeasuss underlines exactly why engaging in this debate on JREF is so futile.

To be fair to TellyKNeasuss: he/she was the only one to actually go to the peer reviewed literature and try to research the topic. Most people (as coincidentally demonstrated by a unique person just above) simply dismiss it without any attempt to understand it.

Unfortunately, TellyKNeasuss' attempts fall rather woefully short.

As I've already explained, the principle problem that Cohn, Lins and Koutsoyiannis point out is that the geophysical time series exhibit a particular type of persistence which results in a very high instance of type I errors (i.e., that something is significant or exceptional when in fact it is not). Put simply: in climate science, CIs are underestimated. This was my primary claim above, which you seemed incapable of reading or understanding, yet it is up there clear as day.

What is the first thing Halley does in his paper? He tests to see whether this persistence does indeed seem to exist. His result? Yes, he confirms the presence of this type of persistence.

Just in case you missed this: his first test result confirms the views of Cohn, Lins and Koutsoyiannis.

He then goes on to apply a test to determine whether paleoclimate reconstructions are significantly different from modern instrumental records, even accounting for the above persistence. He finds they are.

However, he also finds that these reconstructions are significantly different from one another. Oops. That is a problematic result.

He notes that the result he finds could be because AGW exists. And, indeed, I made it clear that I don't claim AGW doesn't exist. I just claimed the CIs were woefully underestimated. That is, AGW might exist but it isn't necessarily measurable based on the current data.

However, Halley also points out his result could have been caused by systematic errors in paleoclimate reconstructions, and references another paper that suggest just that possibility. This is a rather more plausible explanation, since it also explains the inconsistency between reconstructions.

Halley then outlines a list of the problems that would need to be resolved before you can make the interpretations that AGW can be confirmed even with the presence of long term persistence.

But even if this test ultimately could confirm AGW exists, it still leaves an enormous number of type I errors in the IPCC reports and the peer reviewed literature by virtue of the type of persistence applied in those analyses. Halley's analysis can never refute that.

All of this is clear as day in the Halley paper, written out in black and white. It isn't well communicated by the abstract (which is why scientists never rely on an abstract). But despite it all being written in black and white, as clear as day, neither you nor TellyKNeasuss could figure it out. And I have to produce reams of text explaining why you're wrong.

But realising why you're wrong requires you to understand some of the nuances of this debate. I'm not optimistic on this aspect. Nobody else on the AGW threads of JREF has demonstrated the knowledge or ability to follow this. TellyKNeasuss - despite being the best on here by far - couldn't even see that Halley's paper strongly supports my claims.

That's not a good place to be. Really.
 
Watch: Halley. See, the name of a scientist who says you're wrong. I win.

LOL. This crossed between my posting (took me a while to craft the one above).

Look, I managed to read a paper without being led by the nose through it. Good luck with managing that one day.
 
The fact that you aren't even aware of the papers ...

What that actually points to is that they were of insufficient quality to make it into the higher profile journals and that they generally failed to convince people with their arguments. You can go “But… but… but… I was convinced so the scientific community should have been convinced as well” all you want, but that just isn’t how things work.
 
What that actually points to is that they were of insufficient quality to make it into the higher profile journals and that they generally failed to convince people with their arguments. You can go “But… but… but… I was convinced so the scientific community should have been convinced as well” all you want, but that just isn’t how things work.

Ah yes, I forgot that in your strange world, the correctness of a paper can be judged by how popular it is, rather than tedious stuff like evidence.

Meanwhile, in other news:

:dl:
 
Ah yes, I forgot that in your strange world, the correctness of a paper can be judged by how popular it is, rather than tedious stuff like evidence.

Meanwhile, in other news:

:dl:

Hint: In science, the "popularity" of a paper is often indicative of it's correctness, as other people cite it when they find it correct. Then again, that's science, not denialism, so I don't know if you're that familiar with it.
 
Ah yes, I forgot that in your strange world, the correctness of a paper can be judged by how popular it is, rather than tedious stuff like evidence.

Yes, in science the importance of a paper can be judged by the reaction of the scientific community. If a paper is good, many people will cite it and build on it, if it’s not good it will be ignored or attacked. That’s the ultimate and final form of peer review. I do not know why you find this surprising, it’s pretty basic stuff.
 
Yes, in science the importance of a paper can be judged by the reaction of the scientific community. If a paper is good, many people will cite it and build on it, if it’s not good it will be ignored or attacked. That’s the ultimate and final form of peer review. I do not know why you find this surprising, it’s pretty basic stuff.

In fact, it is judged no other way.
 
Hint: In science, the "popularity" of a paper is often indicative of it's correctness
:dl:

No, seriously, stop it. Back to real science.

In science, the value in a paper is entirely based on the correctness of the paper, based on reasoning and evidence. It has *nothing* to do with popularity.

Of course, if you do not know enough to assess the merits of a paper yourself, then you may be limited to merely assessing what other people think of it. Please do not project that position onto others, though.

as other people cite it when they find it correct.
Yes, I'm aware of citation counts, H-index, blah blah blah. Our friend lomiller above tried that on a previous thread, carefully cherry-picking the more recent papers I listed with lower citation counts, and conveniently ignoring the paper I listed with 1900 citations.

Then again, that's science, not denialism, so I don't know if you're that familiar with it.
I'd say ignoring the paper with 1900 citations was first order denialism by lomiller. But keep digging.
 
Yes, in science the importance of a paper can be judged by the reaction of the scientific community. If a paper is good, many people will cite it and build on it, if it’s not good it will be ignored or attacked. That’s the ultimate and final form of peer review. I do not know why you find this surprising, it’s pretty basic stuff.

Yep, and as noted in the last thread you tried this line, one of the papers I listed had 1900 citations. Funny how you ignored that one.

And yes BenBurch, real scientists judge things for themselves and don't need others to judge them. Oh, and sometimes great papers go unnoticed for years because people don't understand them. Oh yes, and sometimes awful papers are well cited for a wide range of reasons.

But don't worry. You keep counting the citations, because that is the limit of your understanding, while the rest of us do science.
 

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