No significant warming for 17 years 4 months

By Christopher Monckton of Brenchley

As Anthony and others have pointed out, even the New York Times has at last been constrained to admit what Dr. Pachauri of the IPCC was constrained to admit some months ago. There has been no global warming statistically distinguishable from zero for getting on for two decades.

The NYT says the absence of warming arises because skeptics cherry-pick 1998, the year of the Great el Niño, as their starting point. However, as Anthony explained yesterday, the stasis goes back farther than that. He says we shall soon be approaching Dr. Ben Santer’s 17-year test: if there is no warming for 17 years, the models are wrong.

Usefully, the latest version of the Hadley Centre/Climatic Research Unit monthly global mean surface temperature anomaly series provides not only the anomalies themselves but also the 2 σ uncertainties.

Superimposing the temperature curve and its least-squares linear-regression trend on the statistical insignificance region bounded by the means of the trends on these published uncertainties since January 1996 demonstrates that there has been no statistically-significant warming in 17 years 4 months:

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On Dr. Santer’s 17-year test, then, the models may have failed. A rethink is needed.

The fact that an apparent warming rate equivalent to almost 0.9 Cº is statistically insignificant may seem surprising at first sight, but there are two reasons for it. First, the published uncertainties are substantial: approximately 0.15 Cº either side of the central estimate.

Secondly, one weakness of linear regression is that it is unduly influenced by outliers. Visibly, the Great el Niño of 1998 is one such outlier.

If 1998 were the only outlier, and particularly if it were the largest, going back to 1996 would be much the same as cherry-picking 1998 itself as the start date.

However, the magnitude of the 1998 positive outlier is countervailed by that of the 1996/7 la Niña. Also, there is a still more substantial positive outlier in the shape of the 2007 el Niño, against which the la Niña of 2008 countervails.

In passing, note that the cooling from January 2007 to January 2008 is the fastest January-to-January cooling in the HadCRUT4 record going back to 1850.

Bearing these considerations in mind, going back to January 1996 is a fair test for statistical significance. And, as the graph shows, there has been no warming that we can statistically distinguish from zero throughout that period, for even the rightmost endpoint of the regression trend-line falls (albeit barely) within the region of statistical insignificance.

Be that as it may, one should beware of focusing the debate solely on how many years and months have passed without significant global warming. Another strong el Niño could – at least temporarily – bring the long period without warming to an end. If so, the cry-babies will screech that catastrophic global warming has resumed, the models were right all along, etc., etc.

It is better to focus on the ever-widening discrepancy between predicted and observed warming rates. The IPCC’s forthcoming Fifth Assessment Report backcasts the interval of 34 models’ global warming projections to 2005, since when the world should have been warming at a rate equivalent to 2.33 Cº/century. Instead, it has been cooling at a rate equivalent to a statistically-insignificant 0.87 Cº/century:

clip_image004

The variance between prediction and observation over the 100 months from January 2005 to April 2013 is thus equivalent to 3.2 Cº/century.

The correlation coefficient is low, the period of record is short, and I have not yet obtained the monthly projected-anomaly data from the modelers to allow a proper p-value comparison.

Yet it is becoming difficult to suggest with a straight face that the models’ projections are healthily on track.

From now on, I propose to publish a monthly index of the variance between the IPCC’s predicted global warming and the thermometers’ measurements. That variance may well inexorably widen over time.

In any event, the index will limit the scope for false claims that the world continues to warm at an unprecedented and dangerous rate.

UPDATE: Lucia’s Blackboard has a detailed essay analyzing the recent trend, written by SteveF, using an improved index for accounting for ENSO, volcanic aerosols, and solar cycles. He concludes the best estimate rate of warming from 1997 to 2012 is less than 1/3 the rate of warming from 1979 to 1996. Also, the original version of this story incorrectly referred to the Washington Post, when it was actually the New York Times article by Justin Gillis. That reference has been corrected.- Anthony

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Nick Stokes
June 15, 2013 7:41 pm

“And the claim is true, if you followed the link in the essay”
The para preceding that quote says:

“In fingerprinting, we analyze longer, multi-decadal temperature records, and we beat down the large year-to-year temperature variability caused by purely natural phenomena (like El NiÒ±os and La NiÒ±as). This makes it easier to identify a slowly-emerging signal arising from gradual, human-caused changes in atmospheric levels of greenhouse gases,” Santer said. “

The test he’s talking about is of signal after allowing for ENSO etc.
REPLY: doesn’t matter, there’s still been no warming for that period, the models deviate from the tropospheric data sets enough to show clearly that they don’t work.. You chaps may as well get used to that fact rather than try to flummox it. – Anthony

June 15, 2013 7:43 pm

As noted in the link above:

So with Dr. Ben Santer now solidly defining 17 years as the minimum to determine a climate signal, what happens to the argument when we reach 2013-2014 and there’s still no statistically significant upwards trend?

Good question. We’re almost at 2014. Six months to go.
Santer devised a test to falsify warming at 17 years. That is a lot closer than Ryan’s “35 years” — which is more than double Santer’s number. Since Santer at least has the credentials [vs Ryan’s baseless assertion], I will assume that Ryan is just too scared to post a reasonable number here.
But the rest of us can see that with no global warming for the past 17+ years, the “carbon” scare is on its last legs.

Ryan
June 15, 2013 8:26 pm

“They find that tropospheric temperature records must be at least 17 years long…”
At LEAST 17 years is not the same as “falsified at 17 years”. It’s pretty simple. And notice the TLT reference. Again, not the info Chris is quoting above. Santer didn’t specify any test to falsify warming at 17 years and yet the claim that he did is made over and over and over again. Sounds like Darwin’s famous lifted eye quote to this biologist.

Ryan
June 15, 2013 8:30 pm

“Santer devised a test to falsify warming at 17 years.”
No, he didn’t, as you can read from Anthony’s plain-as-day quote above. He specified 17 years as the minimum number of years required to detect a trend AT ALL.
REPLY: Yes and there’s no statistically significant trend in 17 years. Seems like only a dullard or a true believer wouldn’t get that. – Anthony

milodonharlani
June 15, 2013 8:54 pm

For how many years previously was there a statistically significant warming trend in the same data set? From say, 1978 to 1995, for 17 years? How did Santer derive the 17-year minimum?
For how many years before the onset of significant warming (though slight) in the 1970s or ’80s was there cooling or at least no statistical warming? From 1961 to ’78? If it were significant cooling, I’m sure that that statistical trend has been “adjusted” away.
Was there also statistically significant warming from 1944 to ’61, or whenever?

June 15, 2013 8:58 pm

Ryan persists in attempting to maintain, contrary to the direct evidence, that Dr. Santer had not adumbrated what Anthony has called a “17-year test”, so that absence of warming for 17 years would indicate that the models were wrong.
However, that is precisely what Dr. Santer had adumbrated. The models, he wrote, “find that tropospheric temperature records must be at least 17 years long to discriminate between internal climate noise and the signal of human-caused changes in the chemical composition of the atmosphere”.
Ryan has attempted to wriggle out of this surely clear quotation by saying that Dr. Santer was talking about tropospheric rather than surface temperatures (but the two are in lock-step); that he was talking about the record after ENSO influences had been excluded (but, as SteveF shows, that adjustment merely strengthens the case against CO2 as an influence); and that he was talking about the absence of warming simpliciter rather than the absence of statistically-significant warming (but, as Werner Brozek has pointed out, on the RSS satellite record there has already been no warming at all for 16 years 6 months: and that period is close to Dr. Santer’s test as redefined by Ryan).
Whichever way Ryan slices and dices the evidence, Dr. Santer’s test has been met. The models were wrong. Get used to it.
However, the main thrust of the head posting was to point out the widening discrepancy between the rate of warming that the models have been predicting and the less exciting rate that has been measured. Here it is still more obvious that the models were wrong. That is why policy-makers are now beginning to rethink their earlier, over-hasty commitment to shutting down the economies of the West in the name of preventing global warming that has not been occurring at anything like the predicted rate. No amount of wriggling by trolls can avert the ever-more-widespread realization that models cannot reliably predict the climate for more than a week or two in advance. The climate scare is over. Move along.

Nick Stokes
June 15, 2013 9:16 pm

milodonharlani says: June 15, 2013 at 8:54 pm
“Was there also statistically significant warming from 1944 to ’61, or whenever?”

You can see the answers to those questions here. This one is Hadcrut 4, but you can select other datasets. Just look up 1961 on the x axis, 1944 on the y, and check the color. Click there for details.
The answer is no, the trend was negative, but not significantly below zero.

milodonharlani
June 15, 2013 9:17 pm

Bureaucrats seeking to rule the world are already moving along, unfortunately, from CACCA to “sustainability”, just as CACCA replaced Marxism after the Fall of the Wall. Whatever the urgent problem is needing global government to save us, it is surely caused by humans in general & evil capitalists in particular.

milodonharlani
June 15, 2013 9:25 pm

Nick:
Thanks.
Looks as if the only 17-year period in which pronouncedly rising CO2 & statistically significant temperature in this “adjusted” data set occurred was roughly 1978 to 1995. Before that time, no significant heating is obvious, indeed possibly significant cooling for a spell, despite rising CO2, then the period around 1988, when Hansen warned us that the seas would boil, followed by the current phase of again no significant warming.
For this we have to give up fossil fuels, let plants starve, old age pensioners freeze in the dark & massacre helpful bats & birds with the whirring, slicing & dicing blades of death?

Nick Stokes
June 15, 2013 9:25 pm

Monckton of Brenchley says: June 15, 2013 at 8:58 pm
“Whichever way Ryan slices and dices the evidence, Dr. Santer’s test has been met.”

It isn’t Dr Santer’s test. No such test appears in your quote. Aside from the issues of TLT and 17 year as a minimum, not maximum, he clearly indicated what kind of data should be tested:
“In fingerprinting, we analyze longer, multi-decadal temperature records, and we beat down the large year-to-year temperature variability caused by purely natural phenomena (like El Ninos and La Ninas). This makes it easier to identify a slowly-emerging signal arising from gradual, human-caused changes in atmospheric levels of greenhouse gases,” Santer said.”
Your quote follows after that para. Allowing for effects like ENSO makes a big difference.

June 15, 2013 9:53 pm

dbstealey says:
June 15, 2013 at 7:43 pm
Good question. We’re almost at 2014. Six months to go.
Take a close look at the three months to the left of the slope line for RSS. Then look where the May anomaly is.
http://www.woodfortrees.org/plot/rss/from:1996.6/plot/rss/from:1996.9/trend
The bottom line is this: If the May anomaly for RSS holds for the next three months, then RSS will hit the 17 year mark in only three months since the 0 line would go from September 1996 to August 2013. With ENSO being neutral and with the sun being “dead”, there is a good possibility that will happen.

June 16, 2013 2:01 am

Monckton of Brenchley sees the same Nick Stokes that we have to endure every day: someone who is psychologically incapable of ever admitting he is wrong about any of his many assertions.
Since we are all wrong at one time or another, and since the rest of us admit it on occasion, it is a glaring fault of Nick Stokes that he has never admitted to any errors of any kind. And in Mr Stokes’ case, he makes more errors than commenters such as Lord Monckton and Willis Eschenbach, who have a problem with Mr Stokes’ alarmist version of reality.

Bruce Cobb
June 16, 2013 4:53 am

It doesn’t even matter what Santer said, or didn’t say. The fact that Climatists are, between bouts of denying that the warming has indeed halted for 17+ years, scrambling to “explain” why means they know their warmist ideology is in trouble. The models have failed, as they were destined to, not being based on reality.

Bill Illis
June 16, 2013 7:12 am

John Tillman says:
June 15, 2013 at 5:51 pm
Ryan:
I tried to find recent estimates of CO2 level before the Marinoan or previous Snowball Earth episodes,
——————
635 Mya – 12,000 ppm
715 Mya – 4,000 ppm
http://www.snowballearth.org/Bao08.pdf

Kristian
June 16, 2013 7:39 am

Nick Stokes says, June 15, 2013 at 9:25 pm:
“Allowing for effects like ENSO makes a big difference.”
Except, you cannot ‘allow’ for effects like ENSO. The ‘effect’ of ENSO is what makes the whole global temperature graph:
http://i1172.photobucket.com/albums/r565/Keyell/GWexplained_zps566ab681.png

John Tillman
June 16, 2013 9:19 am

Bill:
Thanks!

John Tillman
June 16, 2013 9:25 am

PS: That’s the same team cited in the LSU press release, but with somewhat different CO2 estimates.

rgbatduke
June 16, 2013 10:18 am

CO2 is a GHG, and its accumulation will make the world hotter. We have a real interest in knowing how much. GCM’s represent our best chance of finding out. We need to get as much information from them as we can. Doing nothing is not a riskfree policy.
I think it is plausible that you are correct that the accumulation of CO_2 will make the world warmer. Doubling it from 300 ppm (by roughly the end of the century) might make it 1.2 C warmer that it was in 1955 or 1960, if all things were equal and we were dealing with a single variable linear problem. But we’re not. We’re dealing with a highly nonlinear, chaotic system were we cannot even predict the baseline behavior in the past, when it has exhibited variation much larger than observed over the last 40-50 years which is the entire extent during which we could possibly have influenced it with CO_2. Indeed, temperature increase in the first half of the 20th century bore a strong resemblance to temperature increase in the second half — as did reported behavior of e.g. ice melt in the arctic and more — until second half and first half records were adjusted and adjusted again until a cooling blip in the middle all but disappeared and the second half was artificially warmed compared to the first. Whether or not these adjustments were honest or dishonest is in a sense beyond the point — either way with satellite measurements of LTT it simply isn’t possible to continue to adjust the land record ever warmer than the LTT and hence in a decade or two the issue will be moot.
In a decade or two many issues will be moot. I am not a “denier” or a “warmist” — I am simply skeptical that we know enough to model the climate when we don’t even understand how to incorporate the basic physics that has driven the climate into a model that can quantitatively hindcast the last million years or so. And no, I do not buy into the argument that we can linearize around the present — not in a nonlinear chaotic system with a nonlinear past that we cannot explain. If the climate is chaotic — and note well, I did not say the weather — then we probably cannot predict what it will do, or even what it will “probably” do, CO_2 or no CO_2. If it is not chaotic, and is following some sort of predictable behavior that we might be able to linearize around, well — predict it. In the past.
You point out that doing nothing is not a risk free policy. Absolutely true. However, doing something isn’t a risk free action — it is a guaranteed cost! You are simply restating Pascal’s Wager, in the modern religion of sinful human caused global warming. Let me clarify.
Pascal, of course, said that even though the proposition that God exists was (your choice of) absurd or improbable or at the very least unprovable and lacking proper evidence, the consequences of believing and being wrong were small compared to the consequences of not believing and being right. A slightly wiser man than Pascal — such as the Buddha — might have then examined what the real costs were (tithing the priesthood, giving up enormous amounts of political power to the religion-supported establishment feudal government, wasting countless hours praying and attending sermons where somebody tells you how to think and behave, all of the attendant distortion of human judgment that occurs when one accepts false premises on important matters such as a worldview) and just who it was that wrote the book describing the consequences of disbelief (that same priesthood, hmmm), but Pascal took them at their word that a being capable of creating a Universe and supposedly being perfectly loving would throw humans into a pit of eternal torture for the sin of failing to be convinced of an absurdity by the priesthood. Hence one could “prove” that the costs on one side paid immediately, however great, were less than the expectation value of the future costs on the other side, however unlikely. Infinity/eternity times even a tiny chance exceeds a mere lifetime of tithing etc.
This is the modern climate science wager as well. You remain unconvinced that the GCMs are wrong in spite of the fact that whether you plot the spaghetti in quantiles or standard deviations (where I note that you have not responded to my observation that AR4 plotted both mean and standard deviation of precisely these spaghetti curves and furthermore made claims of likelihood, and there isn’t the faintest reason to think that AR5 won’t do exactly the same thing, in the guide to policy makers, not the scientific sections that nobody but scientists and not all of them ever read) the current climate has diverged pretty much outside of the envelope of all of them.
I ask you again to invert your belief system and reorient it back towards the accepted one within the general realm of science. We do not know if the GCMs are trustworthy or correct or implement their physics appropriately. It is a nontrivial question because the climate is chaotic and highly nonlinear, because there are many different types of models, and because the models do not even make predictions in good agreement with each other in toy problems. We do not know the physics and feedback associated with many of the assumptions built into the models — clouds and water vapor being an excellent example — well enough to trust it without some sort of confirmation, some evidence that it the models are capable of predicting the future or hindcasting the indefinite past.
Do you consider the deviation of observed temperatures from the entire range predicted by these inconsistent models from observed temperatures to be evidence for the GCMs being trustworthy? If you answer yes, then I have to conclude that you have fully embraced CAGW as a religion, not as science. Note that I didn’t say “proven” or “disproven”. One does not verify or falsify in science (and yes, I’m perfectly happy to tackle anyone on list who is a Popperite) — one increases or decreases one’s degree of belief in propositions based on a mix of consistency and evidence. Negative evidence (including failure to agree with predictions in a reasonable manner) either decreases degree of belief or you have given up reason altogether, just as positive evidence should increase it.
If you agree — as I hope that you do — that the lack of agreement is troubling and suggests that perhaps, just maybe, these models are badly wrong since the current climate is diverging from the entire envelope of their predictions (which were themselves averages over ensembles of starting conditions, presuming some sort of ergodicity that of course might be utterly absent in a chaotic system or a system with many non-Markovian contributions with many timescales from the past and with the possibility — nay, the observed certainty — of spin-glass-like “frustration” in its internal dynamics on arbitrarily large timescales) then this should cause you to take a hard look at the entire issue of certain costs versus risks versus benefits because changes in the plausibility/probability of downstream disaster have enormous impact on the expected costs of action versus inaction, and even on which actions are reasonable now and which are not.
For example, on youtube right now you can watch Hansen’s TED talks video where he tells the entire world that he still thinks that sea level will rise 5 meters by the end of the century. 5 meters! Do you agree with that? Do you think that there are ten actually reputable climate scientists on Earth who would agree with that? Bear in mind that the current rate of SLR — one that has persisted for roughly 140 years with only small variations in rate — is 1.6 mm/year (plus or minus around 1.5 mm). 9 inches since 1870 according to the mix of tide gauge and satellite data. This is the same Hansen who conspired to turn off the air conditioning in the US congress on the day he made a presentation to them to sufficiently convince them that CAGW was a certain danger and that they should fund any measures necessary to prevent it. Trenberth, OTOH — sadly, so committed to CAGW that he can hardly afford to back out now but probably a basically honest person — fairly recently called for 30 cm by the end of the century, a number that is a linear extrapolation of the current rates but at least isn’t radically implausible — a foot in 90 years, or a bit over an inch a decade.
Five meters is Pascallian — sixteen or seventeen feet, a disaster beyond imagining, morally equivalent to eternal damnation. Trenberth’s assertion, on the other hand, is completely ignorable — just like nobody even noticed the 9 inch rise over the last century plus or is noticing the current (supposed) 3 mm/year, nobody will notice it if it continues decades or longer. Certainly there is reason for alarm and the urgent expenditure of trillions of dollars to ameliorate it.
Let me explain the real cost benefit of CAGW to you. The money spent on it by Europe so far would have prevented the recent monetary crisis that almost brought down the Euro, which in turn might have triggered a global depression. Why do you think that Europe is backing off of CAGW? Because there has been no warming observed pretty much from when Mann’s infamous hockey stick was first published and used to wipe out the MWP and LIA that “inconveniently” caused people with ordinary common sense to doubt that there was a catastrophe underway, and screw a disaster in 2100, the monetary crisis amelioration has helped cause is a disaster right now.
It’s a disaster right now in the US. We’re all spending a lot more for gasoline, coal, and oil derived products because the energy companies love CAGW, and probably help fund the hysteria. They make a marginal profit on retail cost, demand is almost entirely inelastic, and anything that makes prices rise is good for them. We pay substantially more for electricity than we probably need to, especially in states like California. We can “afford” this only because we are so very very wealthy and because none of the measures we take to ameliorate CAGW will even according to their promoters have any significant impact on it in the future, while measures we are taking for purely selfish and economical reasons (using lots of natural gas, for example) turn out to have a large impact on carbon utilization.
And of course the same anti-civilization priests that preach the sin of burning carbon preach the even bigger sin of taking any of the measures that might actually work to ameliorate hypothetical CAGW caused by CO_2 such as building lots of nuclear power plants or investing heavily in LFTR. Western North Carolina alone could provide 100% of the energy requirements of the entire world for some 17,000 years, and mining it of course produces lots of the rare earths that are equally valuable for use in magnets and energy storage devices that might make electric cars ultimately feasible (at the moment, thorium is viewed as toxic waste when mining rare earths, which is why the US imports them all continuing our tradition of simply exporting our pollution).
But the real disaster, the big disaster, the ongoing catastrophe, the most tragic aspect of the religion of CAGW is that all of the measures we have taken to combat it, with their moderate to severe impact in the first world, have come at the expense of the third world. The third world is suffering from energy poverty above all else. Energy is, of course, the fundamental scarcity. With enough, cheap enough, energy, one can make the desert bloom, build clean water and sewage systems, fuel industry, fuel transportation, fuel communication. Most people living in the first world cannot imagine life without clean running water, flushable toilets, electric lights, air conditioning, cell phones, computers and the Internet, cars, supermarkets, refrigerators, stoves, washing machines, but I grew up in India and I could literally see that life happening outside of my first-world window in the heart of New Delhi. I cited a TED talks of evil featuring Hansen up above — if you want to watch a TED talks of good, google up the one on washing machines. Washing machines are instruments where you put in dirty clothes on one side and take out books on the other side. You take out time, and wealth, and quality of life on the other side. And this cannot begin to compare to India, where there isn’t any water to wash clothes in for the poorest people unless they live near a river or it is the Monsoon.
Every measure we erect to oppose the development of carbon based energy raises prices, and raising prices has a devastating impact on the development of the third world. Worse, the money we spend in the first world comes out of money we might otherwise spend in useful ways on the economic development of the third world — we have finite resources, and spending more on one thing means spending less on another. If we spent just one of the billions of dollars we spend a year on CAGW on global poverty, how many lives would we save (save from death, save from disease, save from poverty, save from hopelessness), mostly of children? Millions, easily. A year.
So next time you want to talk about the “risk” of doing nothing, make sure you accompany it with the immediate cost of doing something for a problem that might or might not actually exist, whose impact (if it does indeed exist) could range from ignorable, as in a 30 cm SLR by 2100 to “catastrophic” (let’s say a whole meter of SLR by 2100, since only crazy people who are convinced that they are the religious salvation of humanity think it will be five), but a problem that will largely sort itself out even if we do nothing in a decade and beyond as technologies such as solar cells and (we can hope) LFTR and maybe long-shot thermonuclear fusion make burning carbon for energy as obsolete as TV antennas on top of houses within two decades not to “save the world” but to save money.
In case you wonder if I think there are measures worth taking to ameliorate the risk of CAGW, I would answer certainly. Here is a list. All of these measures have a guaranteed payout in the long run regardless of whether or not CAGW is eventually borne out not by the current crop of GCMs but by observational science and models that actually work. None of them are horribly expensive. None of them are the equivalent of “carbon trading”, “carbon taxes”, or other measures for separating fools from money, and all of them would be supported as part of the general support of good science.
* Invest heavily in continuing to develop natural gas as a resource. This is actually real-time profitable and doesn’t need a lot of government interference to make happen.
* Invest heavily in fission based power plants. I don’t think much of pressurized water Uranium plants, although I think that with modern technology they can be built pretty safely. But however you assess the risk if you really believe in a global calamity if we burn carbon, and do not want to go back to outhouses, washing clothes by hand in a river and going to bed at sundown and living in houses that are hot in the summer and freezing cold in the winter, fission plants are surely better than that.
* Invest in building LFTR and other possible thorium-burning fission designs. Start mining the thorium we’ve got and extracting our own rare earth metals for use in things like super-magnets (thereby driving down world prices in the process).
* Continue to invest in fusion and solar cell and storage device research at an aggressive level, without subsidizing their premature adoption.
* Back off on all measures intended to reduce the burning of carbon for energy and nothing else until there is solid observational evidence of not only warming, but catastrophic warming. Try to actually do real cost-benefit analysis based not on Pascal’s wager and mass public hysteria caused by the likes of Hansen, but on observational data backed by real knowledge of how the climate works, once we have any.
* And sure, continue to do climate research, but at a vastly reduced level of public funding.
Hansen succeeded in one thing — he caused the diversion of billions of dollars of public funding into climate science over more than two decades. If you want yet another horrendous cost — funding climate research intended to prove that if temperatures increase 5 C by 2100, it will be bad for tree frogs in the amazon instead of funding research into thorium, funding research on dumping massive amounts of iron into the ocean to supposedly increase its rate of CO_2 uptake instead of increasing the funding of fusion research, or research and development of vaccines, or development of water sanitation projects in third world countries, or the development of global literacy programs, or name almost anything that could have been done with the money pissed away in an overfunded scientific diversion that might yet turn out to be completely incorrect — net feedback from CO_2 increases could be negative to the point where the climate is almost completely insensitive to CO_2 increases (as has been quite seriously and scientifically proposed, and which is rather consistent with the evidence of the last 33 years of high-quality empirical observations of e.g. LTTs and SSTs).
Personally, I will believe that even the proponents of the CAGW, now CACC (since there is no visible warming, the marketing has changed to “climate change” in order to try to perpetuate the Pascallian panic) truly believe the kool-ade that they would have us all drink the day that they call for us to build fission plants of one sort or another as fast as we can build them. In the meantime, I will continue to think that this whole public debate has a lot less to do with science, and a lot more to do with money, power, and an unholy alliance between those who want to exploit the supposed risk of disaster to their own direct and personal monetary benefit and those who hate civilization itself, who think that the world has too many people living in it and who are willing to promote any lie if it perpetuates the cycle of poverty and death that limits third world population growth, if it has any chance of topping the civilization that they perceive of as being run by the wealthy and powerful at their personal expenses.
rgb

rgbatduke
June 16, 2013 10:50 am

In my opinion, Santer made a political statement so it should be answered with a political response: i.e. it should be insisted that he said 17 years of no global warming means no anthropogenic global warming because any anthropogenic effect would have been observed.
Santer made his petard and he should be hoisted on it.
Richard”

Well put. He made a political statement because there is no possible equivalent scientific statement that can be made. Why not? Because we have no idea what the climate is “naturally” doing, has done, or will do. In physics, we tend to believe F = ma, so that as long as we can measure a and m, we can infer F. If we have a system with a number of well-known forces acting on a mass, and we observe its acceleration, and it isn’t consistent with the total force given the forces we understand, then we might possibly be forgiven for inferring the existence of a new force (although cautious physicists would work very hard to look for confounding occurrences of known forces in new ways before they went out on a limb and published a paper asserting the definite existence of a new force). This is, in fact, how various new elementary particles were discovered — by looking for missing energy or momentum after tallying up all that we could observe in known channels and inferring the existence of particles such as a neutrino needed to to make energy and momentum conservation work out.
Now, try doing the same thing when we do not have the moral equivalent of F = ma, when we do not know the existing force laws, when we cannot even predict the outcome of a given experiment well enough to observe a deviation from expected behavior because there is no expected behavior. That it what modern climate science attempts to do.
We have no idea why the world emerged from the Wisconsin glaciation. We are not sure why it re-descended briefly into glaciation in the Younger Dryas. We cannot explain the temperature record in proxy of the Holocene, why for some 8000 or 9000 years it was warmer than it is now, then why it cooled in the LIA to the coldest global temperatures observed in the entire Holocene, or why it warmed back up afterwards (to temperatures that are entirely comparable to what they were for most of the Holocene, although still a degree or so cooler than most of it). We are completely clueless about the Pliestocene Ice Age we are still in, and cannot predict or explain the variable periodicity of the interglacials or why the depth of the temperature variation in the interglacial/glacial episodes appears to be growing. We do not know why the Pliestocene began in the first place. We do know understand why most of the last 60 million years post-Cretaceous was warm, except for several stretches of a million years or more where it got damn cold for no apparent reason and quite suddenly, and then warmed up again equally suddenly.
On shorter time scales, we cannot explain the MWP, the LIA, or the modern warm period. Most of all three were variations that occurred completely independent of any conceivable human influence, and yet were similar in magnitude and scope and timescale of variation. The only thing CO_2 increase is supposed to be responsible for is the temperature increase observed from roughly 1955 on (before that anthropogenic CO_2 was pretty ignorable) and temperature didn’t even begin to rise until fifteen to twenty years after the supposedly anthropogenic CO_2 did. It then inconveniently rose sharply for as much as 30 years — more or less sharply depending on whether you use data accrued before the early 90’s before or after it was “adjusted” to show far more late century warming and far less early century warming — but then stopped after one final burst associated with the super El Nino and the following equally super La Nina in 1998-1999. In the meantime, CO_2 continued to increase but temperatures have not. And they cannot be “adjusted” to make them warmer any more because whatever you do to the surface record, the lower troposphere temperature cannot be finagled and surface temperatures have already diverged further from them and from the SSTs than one can reasonably believe over the time the latter two have reliably been recorded.
We cannot determine the human influence because we do not know what the non-human baseline would have been without it. I do not believe that we can know what it would have been without it, certainly not with existing theory.
rgb

Steven Devijver
June 16, 2013 11:41 am

@rgbatduke

One cannot generate an ensemble of independent and identically distributed models that have different code.

But one can generate an ensemble of proxy temperature data, sparse historic instrumental temperature data and modern instrumental temperature data. I’m learning something new every day.

phlogiston
June 16, 2013 11:45 am

rgbatduke says:
June 16, 2013 at 10:50 am

We have no idea why the world emerged from the Wisconsin glaciation. We are not sure why it re-descended briefly into glaciation in the Younger Dryas. We cannot explain the temperature record in proxy of the Holocene, why for some 8000 or 9000 years it was warmer than it is now, then why it cooled in the LIA to the coldest global temperatures observed in the entire Holocene, or why it warmed back up afterwards (to temperatures that are entirely comparable to what they were for most of the Holocene, although still a degree or so cooler than most of it). We are completely clueless about the Pliestocene Ice Age we are still in, and cannot predict or explain the variable periodicity of the interglacials or why the depth of the temperature variation in the interglacial/glacial episodes appears to be growing. We do not know why the Pliestocene began in the first place. We do know understand why most of the last 60 million years post-Cretaceous was warm, except for several stretches of a million years or more where it got damn cold for no apparent reason and quite suddenly, and then warmed up again equally suddenly.
On shorter time scales, we cannot explain the MWP, the LIA, or the modern warm period. Most of all three were variations that occurred completely independent of any conceivable human influence, and yet were similar in magnitude and scope and timescale of variation. The only thing CO_2 increase is supposed to be responsible for is the temperature increase observed from roughly 1955 on (before that anthropogenic CO_2 was pretty ignorable) and temperature didn’t even begin to rise until fifteen to twenty years after the supposedly anthropogenic CO_2 did. It then inconveniently rose sharply for as much as 30 years — more or less sharply depending on whether you use data accrued before the early 90′s before or after it was “adjusted” to show far more late century warming and far less early century warming — but then stopped after one final burst associated with the super El Nino and the following equally super La Nina in 1998-1999. In the meantime, CO_2 continued to increase but temperatures have not. And they cannot be “adjusted” to make them warmer any more because whatever you do to the surface record, the lower troposphere temperature cannot be finagled and surface temperatures have already diverged further from them and from the SSTs than one can reasonably believe over the time the latter two have reliably been recorded.
We cannot determine the human influence because we do not know what the non-human baseline would have been without it. I do not believe that we can know what it would have been without it, certainly not with existing theory.
rgb

This is a very persuasive statement of a rationalist position on climate. It is to this position that the research community (all the real sciences whose subjects impinge on climate) will increasingly converge as the fallacy and impossibility of the alarmist AGW position becomes clearer.
To paraphrase Donald Rumsfeld, climate is an “unknown unknown”. We dont know what the hell is going on.

Steven Devijver
June 16, 2013 11:45 am

@rgbatduke
How coud I forget? And model predictions of course.
Have your cake or eat. You can’t have ’em both. But thanks anyways for so thoroughly refuting the hockey stick.

June 16, 2013 3:54 pm

Professor Brown’s heartfelt anger at the senseless waste and cruelty arising from the diversion of hundreds of billions from where they are needed to where they will do no good at all, at 10.18 am and at 10.50 am on 16 June, deserves to be elevated to a new posting in its own right.These two comments, taken together, constitute one of the best summaries of the case against the profiteers of doom that I have seen. I am grateful to him for having contributed so many distinguished, illuminating and passionate comments to this thread.

Richard M
June 16, 2013 5:01 pm

Nick Stokes says:
June 15, 2013 at 9:25 pm
It isn’t Dr Santer’s test. No such test appears in your quote. Aside from the issues of TLT and 17 year as a minimum, not maximum, he clearly indicated what kind of data should be tested:
“In fingerprinting, we analyze longer, multi-decadal temperature records, and we beat down the large year-to-year temperature variability caused by purely natural phenomena (like El Ninos and La Ninas). This makes it easier to identify a slowly-emerging signal arising from gradual, human-caused changes in atmospheric levels of greenhouse gases,” Santer said.”
Your quote follows after that para. Allowing for effects like ENSO makes a big difference.

I’ve said this before but I think it bears repeating. It is key to what Santer meant above. He is trying to explain that you could have a strong El Niño at the beginning of an interval with a strong La Niña 16 or less years later. The effect of this positioning might be just enough to create a long flat period. He was saying at 17 years the effects of those events would not be enough to avoid a positive trend.
So, the fact we don’t have either situation but are ENSO neutral at both ends is actually beyond anything Santer envisioned. I’m sure he thought this would be impossible. I also sure NOAA thought it would be impossible when they produced their 15 years number.
The bottom line is we have already gone beyond anything the modelers considered possible. And, the planet has been cooling since the PDO flipped. It is not going to get any better for them. About time they admitted they were wrong and started to try to model reality where ocean oscillations are the dominate decadal forcing.

Gary Hladik
June 16, 2013 5:41 pm

Wow. To anyone starting this comment thread at the bottom, I recommend:
If your time is limited, read every comment by rgbatduke first;
If you have more time, read every comment by Monckton of Brenchley second;
If you have even more time, read the rest of the comments to harvest the remaining 10% or so of the value in this thread.

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