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Scientific Journal Nature Finds Nothing Notable In CRU Leak

eldavojohn writes with an update to the CRU email leak story we've been following for the past two weeks. The peer-reviewed scientific journal Nature has published an article saying the emails do not demonstrate any sort of "scientific conspiracy," and that the journal doesn't intend to investigate earlier papers from CRU researchers without "substantive reasons for concern." The article notes, "Whatever the e-mail authors may have said to one another in (supposed) privacy, however, what matters is how they acted. And the fact is that, in the end, neither they nor the IPCC suppressed anything: when the assessment report was published in 2007 it referenced and discussed both papers." Reader lacaprup points out related news that a global warming skeptic plans to sue NASA under the Freedom of Information Act for failing to deliver climate data and correspondence of their own, which he thinks will be "highly damaging." Meanwhile, a United Nations panel will be conducting its own investigation of the CRU emails.

18 of 736 comments (clear)

  1. Nice try by Wonko+the+Sane · · Score: 5, Insightful

    The real smoking gun isn't the emails - it's the source code.

    They keep talking about those emails in the hopes that no one will call them out on the "VERY ARTIFICAL correction for decline"s applied liberally to the raw data.

    Really take a look at the graphs in the link above. Plot that array yourself if you don't believe it. No amount of handwaving will explain away blatant lying.

    1. Re:Nice try by mrsquid0 · · Score: 5, Informative

      The source code is another thing that has been taken completely out of context. For example, the "Very ARTIFICIAL correction" in was computed, but the line where it was applied was commented out. This is clearly a case of someone playing around with the output to explore various effects and scenarios. They did the experiment, then commented it out to removed that effect from the production output. Does anyone really believe that a real attempt at fraud would be blatantly labeled in the code?

      --
      Just because you are paranoid does not mean that no-one is out to get you.
    2. Re:Nice try by Rising+Ape · · Score: 5, Informative

      FFS, not this shit again. Frankly, given the number of times this has been pointed out, I can only assume that people still mentioning it are wilfully ignoring anything that contradicts them.

      However, one last time. It's commonplace to have multiple versions of analysis code with variations including "artificial" changes. I've done it lots of times, mostly for testing purposes - it's quite useful [1] to know how the output of your analysis depends on variations in the input. Only a small fraction of the code in existence was actually used to process the data "for real". Unless you have some evidence that a) arbitrary modifications were made to published data without explanation in the publication and b) any such modifications were not scientifically justified, please stop with this ridiculous and discredited point.

      [1] By which I mean "essential for any non-trivial analysis"

    3. Re:Nice try by belthize · · Score: 5, Informative

      If you look at the actual code instead of some blog you'll see the reference to the adjusted value is commented out and never used in the plotting call.

      ;
      ; Apply a VERY ARTIFICAL correction for decline!!
      ;
      yrloc=[1400,findgen(19)*5.+1904]
      valadj=[0.,0.,0.,0.,0.,-0.1,-0.25,-0.3,0.,-0.1,0.3,0.8,1.2,1.7,2.5,2.6,2.6,$
          2.6,2.6,2.6]*0.75 ; fudge factor
      if n_elements(yrloc) ne n_elements(valadj) then message,'Oooops!'
      ;
      yearlyadj=interpol(valadj,yrloc,timey)
      ; ;filter_cru,5.,/nan,tsin=yyy+yearlyadj,tslow=tslow ;oplot,timey,tslow,thick=5,color=20
      ;
      filter_cru,5.,/nan,tsin=yyy,tslow=tslow
      oplot,timey,tslow,thick=5,color=21
      ;
      oplot,!x.crange,[0.,0.],linestyle=1
      ;
      plot,[0,1],/nodata,xstyle=4,ystyle=4

              Without revision control one can't say for certain but there's no evidence any adjusted data made it into a paper. There's only evidence that a single piece of code from the thousands of modeling sims had at one time an adjustment that was commented out.

    4. Re:Nice try by sycodon · · Score: 5, Insightful

      Wasn't it so inconsiderate of those trees to change the way the respond to temperature?

      I wonder why they don't include other tree ring data or the Finnish data? Instead, they used bogus data.

      And "they" continue to hide other data.

      Of course I know the standard responses...I'm not a climate scientist so what do I know anything, Nature is "Dr. Jones Peer Reviewed", everyone else is paid by Exxon, blah blah blah.

      Fact is that this issue is now beyond science and is being fought in the public forum. Anyone who would have the world cripple itself economically needs to be 150% above board with all their data and methods. No hiding behind anything. Anyone with a reasonable background in science should be able to take their models apart, thoroughly understand what they are doing and why and be able to replicate their work, from the friggen hunk of wood to the final graph. Hire more people to fulfill FOI request if that's what it takes.

      If necessary, they should set aside a few months a year to do nothing but assist others in understanding their methods (never mind that if any other scientist had to help others replicate their work, it would be seen as a sign of fraud). Too important and busy to do that? Bullshit. Given what want everyone to do, they have an OBLIGATION to do that.

      And lastly...I'm sorry but if the friggin tree ring data is not valid for assessing temperature after 1960, then it is not valid assessing temperature before 1960.

      --
      When Fascism comes to America, it will call itself Anti-Fascism, and tell you to give up your guns.
    5. Re:Nice try by Thomas+Miconi · · Score: 5, Informative

      I will, however, admit that the researchers should have noted the issues with the tree-ring data in question.

      Good thing they did, then. Only ten years ago, mind you.

      Seriously, this whole "climategate" debacle tends to run like this:

      1- Deniers exhume some e-mail / piece of code which they don't understand, but assume is definite proof of evil scheming on the part of the great academic conspiracy ("Trick!" "Hide the decline!" OMGconspiracy send teh copz!!) .

      2- Scientists post explanation, showing the deniers' allegations to be baseless (The "hidden" decline in tree ring growth was published a decade ago - see Nature link above; in this very publication, it was shown to diverge from the actual instrumental record after 1960; so for the post-1960 period we basically replace tree rings with the actual instrumental data, because we trust thermometers more than tree rings when the two fail to agree; we cited the relevant articles in the caption for the graph just to be sure).

      3- Deniers completely ignore scientists' explanation, and keep fantasising about their glorious victory over evil scheming scientists. See GP for an illustration.

      Rinse. Repeat.

      To GP and all the folks who keep harping about this "VERY ARTIFICIAL" correction code: the code in question is a one-time code for temporarily re-calibrating the tree ring data. The reason, and the coefficients, are ultimately derived from the Nature article I linked to above. For an interesting hypothesis concerning the source of this code, see comment #147 and linked manuscript on this thread.

    6. Re:Nice try by Alef · · Score: 5, Insightful

      If anything, this code tells me that whoever wrote it was very careful not to use bad data. Why else would you mark the modification with a three line comment with big letters and double exclamation marks pointing out that the following lines are artificial? The only time I write comments like that is when I want to make sure nobody accidentally compiles the code with it still in there.

      This is the opposite of what I would expect from someone in a conspiracy.

    7. Re:Nice try by Thomas+Miconi · · Score: 5, Insightful

      If one completely ignores any of the above data sets (whether they be direct measurements or proxies), there exist many disparate observations of global warming ranging from the rise in sea level which threatens various nations' lands ...which has been either minimal or non-detectable, as opposed to what the AGW fans have been telling us. Not exactly a good point.

      Sea level changes from 1970 to 2009, compared with IPCC predictions. (from the Copenhagen Diagnosis, via Tim Lambert on Scienceblogs).

      You should also note that if you go back to the beginning of serious AGW science (during the late 1980s), most of their predictions have already been falsified. The globe should be at least a half-degree warmer than observed (check the "Hockey Stick" graph in its earlier incarnations), the oceans should be at least a foot deeper (up to five feet higher today, according to some predictions), and storms should be much, much more severe (they're not). None of these things have happened over the last twenty years, therefore THEY WERE WRONG.

      Let us assume that what you say is true. You are basically telling us that we should dismiss climate change research, because (according to you) some of the early papers got it wrong. Can you see the problem with your "reasoning"?

  2. Same with newscientist by Idiomatick · · Score: 5, Interesting

    Same with newscientist
    I imagine all scientific journals will be quite clear on this point. A few suspect emails do not destroy millions of man hours of research.

    1. Re:Same with newscientist by mikechant · · Score: 5, Insightful

      If data that all those millions of man-hours of research is based on is bogus then the conclusions are worthless.

      It's lucky then that the data comes from many different independent sources and is therefore not bogus at all then, isn't it?

  3. The dog that did not bark by 140Mandak262Jamuna · · Score: 5, Insightful
    Everyone seems to be focused on what is found in the emails and what is significant and what is not etc. But just look at what is NOT there. For years the skeptics side has been alleging a conspiracy, funded by communists, socialists, George Soros, Al Gore... Some global anti-American organization slyly orchestrating a campaign to emasculate America!

    What do you see in these mails? Remember these scientists think they are talking in private and never anticipated being found out. Are there mentions or references to dark projects? Some references to their agents and their handlers? Strong ideological opinions to destroy Capitalism and install a world Government?

    What happened is very simple. These scientists are used to one kind of debate and one kind of rules. Where "the conclusions reached by Kogen, et al [8] is not supported by the evidence presented by them [9],[10],[11]" would be considered a grave insult and might cause loss of reputation. In the question and answer session in a seminar someone saying, "But, Dr Kaplansky, with a sample size of 27, the correlation coefficient you have arrived at is less than experimental error" wouild result in a collective gasp and "ole!" from the assembled people, usually about 20 people who could actually understand the paper being presented.

    These scientists are encountering the rough and tumble world of popular journalism, spin meistering. They are clueless about how to handle it. They feel they are being gravely insulted and highly manipulated. They think they are being quote mined, quoted out of context. The journalists are giving totally irrelevant and completely debunked theorists equal time for balance. So they go about in their clueless ways to counter it. They over react, they try to be more guarded, they are trying to write sentences that could not be quote mined.

    Now that people have glimpse of the actual communications between the scientists, compare that to say, the hacked emails of Sarah Palin, See where you find more smoking guns.

    --
    sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
    1. Re:The dog that did not bark by pitchpipe · · Score: 5, Insightful
      The people who are trying to sow FUD against AGW know that it doesn't matter what was actually in those emails. What matters is the accusations that they can hurl about without anyone really challenging them.

      We thought that the media had grown a pair of proverbial balls after the Bush fiasco, but we were wrong. It almost seems to be going in the wrong direction, where they are less challenging than they were before for fear of *not* getting that interview.

      --
      Look where all this talking got us, baby.
  4. Those that want to be bamboozled... by mbone · · Score: 5, Informative

    ... will be bamboozled. There is nothing new in that. It lies behind all political folly.

    The data that was adjusted was paleoclimate data, and what it was being adjusted to was temperature data (i.e., the more reliable modern temperature data). As far as I can tell, they neither could nor did adjust the measured temperature data.

    The OP did not quote the really important part of the Nature piece :

    Nothing in the e-mails undermines the scientific case that global warming is real — or that human activities are almost certainly the cause. That case is supported by multiple, robust lines of evidence, including several that are completely independent of the climate reconstructions debated in the e-mails.

    The evidence for this is literally all around us. Throw all of the CRU data out if you want. It won't change a thing.

  5. Re:How they acted? by gEvil+(beta) · · Score: 5, Insightful

    If AGW was actually happening, there would be no need to "adjust" numbers and likewise no need to cover up the leaked emails.

    So normalization of data should never happen, no matter what? Have you ever taken even the most basic of statistics classes?

    This is the problem with the whole argument right here. You have people that don't have the first clue what they're talking about telling people how they're supposed to do their job.

    --
    This guy's the limit!
  6. Oh, come on. by Grendel+Drago · · Score: 5, Interesting

    The "VERY ARTIFICIAL correction" you describe is never actually used. It's commented out. You can plot that array, but I'm not sure what you think you're demonstrating.

    --
    Laws do not persuade just because they threaten. --Seneca
    1. Re:Oh, come on. by mrsquid0 · · Score: 5, Informative

      Which version was used to produce the plot that is in the Nature paper? It is easy enough to tell by looking at the Nature paper. Hint, the plot in the paper does not have this correction applied.

      --
      Just because you are paranoid does not mean that no-one is out to get you.
  7. Re:Peer-reviewed journal? by schon · · Score: 5, Insightful

    Is that a journal where the hockey team review each others papers anonymously?

    No, it's a scientific journal. They don't write about sports.

    No surprise that they won't investigate anything.

    If you read the article and summary, you'll discover that they did investigate, and found nothing wrong.

    Perhaps you should brush up on your reading comprehension skills. Learning a bit about the scientific method would help too.

  8. Worst case by Anonymous Coward · · Score: 5, Insightful

    1) they're guilty of not properly responding to a FOIA request
    2) they've said nasty things about certain colleagues work (but still cited it)
    3) they've discarded some data for reasons they should have better explained (reasons that were valid -- it wasn't properly calibrated)

    Bad for them personally, but utterly irrelevant to the scientific issue, unless you think it's some kind of surprise that scientists are human and sometimes make mistakes. As the Nature article says, it's laughable. Where's the global conspiracy? Where's the outright fraud of substantial masses of crucial data? Nowhere.

    It's worth investigating for the possibility of misconduct, but, sheesh, the actual scientific impact is so overblown it's ridiculous. This is why you have many, many other scientists working on the same issues and completely independent ones: so that even if one of them makes an honest or a dishonest mistake, or one method yields incorrect results, the other people and techniques are likely to find the flaw and correct it.

    The only "trick" here is the propaganda trick climate-change denialists are using to divert attention from the actual data and results of the last few decades.

    Smoking gun? It's like they've (illegally) broken into the house owned by someone they've publicly accused of murder for a decade and found a plastic gun replica that shoots Nerf balls. Aha!! Gotcha!