Gavin was for solar forcing of climate before he was against it

Readers may recall when Dr. Gavin Schmidt appeared on a television program with Dr. Roy Spencer, but by Gavin’s cowardly choice, not at the same time.

After listing the known causes for climate change aka global warming, Gavin Schmidt said:

“We’ve looked at the sun; it’s not the sun. We’ve looked at volcanoes; it’s not volcanoes. We’ve looked at the orbit; it’s not the orbit.”

Interestingly, Gavin lists solar forcing as  primary cause of colder temperatures during the Maunder Minimum and “little ice age” in this 2001 paper co-authored with Mike Mann: 

Science 7 December 2001: Vol. 294 no. 5549 pp. 2149-2152 DOI: 10.1126/science.1064363

Solar Forcing of Regional Climate Change During the Maunder Minimum

Drew T. Shindell1, Gavin A. Schmidt1, Michael E. Mann2, David Rind1, Anne Waple3

+ Author Affiliations

  1. NASA Goddard Institute for Space Studies and Center for Climate Systems Research, Columbia University, New York, NY 10025, USA.
  2. Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22902, USA
  3. Department of Geosciences, University of Massachusetts, Amherst, MA 01003, USA

Abstract

We examine the climate response to solar irradiance changes between the late 17th-century Maunder Minimum and the late 18th century. Global average temperature changes are small (about 0.3° to 0.4°C) in both a climate model and empirical reconstructions. However, regional temperature changes are quite large. In the model, these occur primarily through a forced shift toward the low index state of the Arctic Oscillation/North Atlantic Oscillation as solar irradiance decreases. This leads to colder temperatures over the Northern Hemisphere continents, especially in winter (1° to 2°C), in agreement with historical records and proxy data for surface temperatures.

The full paper is here at PSU: http://www.meteo.psu.edu/holocene/public_html/shared/articles/Shindelletal01.pdf

The conclusion reads (bold mine):

The GISS model results and empirical reconstructions both suggest that solar-forced regional climate changes during the Maunder Minimum appeared predominantly as a shift toward the low AO/NAO index. Although global average temperature changes were small, modeled regional cooling over the continents during winter was up to five times greater. Changes in ocean circulation were not considered in this model. However, given the sensitivity of the North Atlantic to AO/NAO forcing (37), oceanic changes may well have been triggered as a response to the atmospheric changes (38). Such oceanic

changes would themselves further modify the pattern of SST in the North Atlantic (39) and, to a lesser extent, the downstream air temperature anomalies in Europe.

These results provide evidence that relatively small solar forcing may play a significant role in century-scale NH winter climate change. This suggests that colder winter temperatures over the NH continents during portions of the 15th through the 17th centuries (sometimes called the Little Ice Age) and warmer temperatures during the 12th through 14th centuries (the putative Medieval Warm Period) may have been influenced by long-term solar variations.

==============================================================

In the paper: A History of Solar Activity over Millennia  (PDF) it is demonstrated:

The modern level of solar activity (after the 1940s) is very high, corresponding to a grand maximum. Grand maxima are also rare and irregularly occurring events, though the exact rate of their occurrence is still a subject of debates. These observational features of the long-term behavior of solar activity have important implications, especially for the development of theoretical solar-dynamo models and for solar-terrestrial studies.

image
Figure 15: 10-year averaged sunspot numbers: Actual group sunspot numbers (thick grey line) and the reconstructions based on 10Be (thin curve, Usoskin et al., 2003c) and on 14C (thick curve with error bars, Solanki et al., 2004). The horizontal dotted line depicts the high activity threshold.

More here: Paper demonstrates solar activity was at a grand maximum in the late 20th century

Another paper recently published  predicts the sun is headed for a Dalton-like solar minimum around 2050

The author notes solar activity has been at a higher level in the 20th century saying”

“the Sun has emerged from a Grand Maximum, which includes solar cycle 19, the most active solar cycle in the last 400 years. Earth was cooler in Grand Minima. The trend line indicates we have entered a period of low solar activity.”

Note the red horizontal line on the graph below shows 50-year mean solar activity was at the highest levels of the past 300 years during the latter half of the 20th century.

Ahluwalia_fig1
Annual Mean Sunspot Numbers. Annotation numbers indicate solar cycles. Red horizontal lines show 50-year mean sunspot numbers were highest during the solar Grand Maximum in the latter half of the 20th century. DM= Dalton Minimum of solar activity during the Little Ice Age. We are currently in cycle 24 which shows a drop.

From the WUWT Solar reference page, Dr Leif Svalgaard has this plot comparing the current cycle 24 with recent solar cycles. The prediction is that solar max via sunspot count will peak in late 2013/early 2014 (now):

solar_region_count

Predictions are that cycle 25 will be even lower: First Estimate of Solar Cycle 25 Amplitude – may be the smallest in over 300 years

Based on the slowing of the Sun’s “Great Conveyor Belt”, NASA solar scientist David Hathaway predicted that

“The slowdown we see now means that Solar Cycle 25, peaking around the year 2022, could be one of the weakest in centuries.” He is very likely to have got the year wrong in that Solar Cycle 25 is unlikely to start until 2025.

In this paper: http://www.probeinternational.org/Livingston-penn-2010.pdf,

Livingston and Penn provided the first hard estimate of Solar Cycle 25 amplitude based on a physical model. That estimate is 7, which would make it the smallest solar cycle for over 300 years.

Yet according to Gavin in his recent television interview,

“We’ve looked at the sun; it’s not the sun.”

Right, apparently the sun can only force climate one-way.

So in the upcoming two decades, as solar activity wanes, if it becomes globally cooler, will Gavin and Mike blame the sun, or will the disavow their previous work, pointing to studies like this one?

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December 29, 2013 8:42 am

vukcevic says:
December 29, 2013 at 12:29 am
It is also known that the Earth’s magnetic field in the polar regions shows similar or identical long trends as the sun’s variability
As the Sun does not have any long-term trend, you are claiming the Earth’s magnetic field doesn’t either.
but at intensity of 2 orders of magnitude ( 100 times ) greater than the Ap index, or more than 2 microTesla since Maunder minimum.
A meaningless comparison, as the Earth’s magnetic field itself is 3 orders of magnitude greater than the Ap index. Both the Field and its variation originate deep in the Earth’s core and neither have any influence on the climate.
Those who wish to maintain ‘settle science’ status quo, impeding any progress that could be made in the ‘sun – earth –climate’ chain, dismiss above as irrelevant.
Worse, it is nonsense to imply that they are connected.
Dismiss any inconvenient finding as irrelevant, is that what science is about? I would think not.
This is not a ‘finding’ and is not in the least ‘inconvenient’, thus fully qualifies as ‘irrelevant’.

December 29, 2013 8:46 am

Gail Combs says:
December 29, 2013 at 8:37 am
However Gerald Roe (Department of Earth and Space Sciences, University of Washington) showed the rate of change IS IMPORTANT in his paper
You are confusing rate of change of the driver with the rate of change of the response (” increase the rate with which the ice volume is decreasing “).

December 29, 2013 9:10 am

lsvalgaard says:
December 29, 2013 at 8:42 am
……….
Hi doc
Have you actually read what is said and shown in my link ?
It doesn’t sound like, I didn’t claim that the gmf directly changes temperature, I am more of the view that it is a proxy of a parallel process. The link contains two quotes from two very eminent scientists in their own field, solar and terrestrial respectively.
Readers of the blog would benefit to a greater extent if you did elaborate on the quotes, than concentrating on my somewhat less articulate reflections.

December 29, 2013 9:22 am

vukcevic says:
December 29, 2013 at 9:10 am
Have you actually read what is said and shown in my link ?
We have been down that road before, nothing new, just a poor correlation [with a proxy that likely is not even correct]. As usual, your stuff does not work when one goes out of the domain of the coincidental correlation. The Earth’s magnetic field changes very much over thousands of years and not the same way as the climate. The first quote is concerned with weak external magnetic fields while the second one is a faux-pas by Dickey. Find me a peer-reviewed paper of hers where she maintains that the changes have a common external source.

Brian H
December 29, 2013 10:13 am

Edit: will the disavow their will they …
I’m waiting for a Climate Scientist/modeller to say, “Model X, which successfully predicted A, B, C, D, and E, is now predicting F.” If only there were a real Model X.

December 29, 2013 10:43 am

Svalgaard vukcevic
As usual, your stuff does not work when one goes out of the domain of the coincidental correlation. The Earth’s magnetic field changes very much over thousands of years and not the same way as the climate. The first quote is concerned with weak external magnetic fields while the second one is a faux-pas by Dickey
More moderate tone has been noted
a) Apparent coincidental correlation with the advances of science, on rare occasions was proven to be a causal one.
b) ‘Multi-millennial’ change of the Earth’s magnetic field (leading to reversals) has a decadal and centenary components (accurately measured since Gauss), coincidentally or causally correlated to the solar magnetic changes.
c) Anything you disagree with or unable to explain, is a faux-pas by someone or another.
Sometimes reserving judgment rather than an outright rejection may prove to be a wiser option (someone up the thread mentioned Lord Kelvin)

December 29, 2013 10:45 am

Lief S. says about vukcevic December 28, 2013 1:45pm
Hathaway at least has the honesty to admit he was wrong (about SC24).
Well Mr Svalgaard, are you going to get ‘honest’ and admit your comparison of SC24 to SC14 is not correct…that it’s much more like SC5…WELL ??

December 29, 2013 11:14 am

vukcevic says:
December 29, 2013 at 10:43 am
a) Apparent coincidental correlation with the advances of science, on rare occasions was proven to be a causal one.
Not when it breaks down outside of the domain of determination
b) ‘Multi-millennial’ change of the Earth’s magnetic field (leading to reversals) has a decadal and centenary components (accurately measured since Gauss), coincidentally or causally correlated to the solar magnetic changes.
Same as a)
c) Anything you disagree with or unable to explain, is a faux-pas by someone or another.
No, junk is junk and stink is stink.
Sometimes reserving judgment rather than an outright rejection may prove to be a wiser option (someone up the thread mentioned Lord Kelvin)
No outright rejection, but careful evaluation and found wanting. Lord Kelvin was right on almost anything.
Dominic Manginell says:
December 29, 2013 at 10:45 am
comparison of SC24 to SC14 is not correct…that it’s much more like SC5…WELL ??\
http://www.leif.org/research/SC14-and-24.png enough said…
In addition cycle 5 is very poorly known so hard to compare with in a meaningful manner.

Jimbo
December 29, 2013 11:16 am

Thank you DB. Now, can someone ask Gavin if he is worried?
Also the Met Office said something like half the years after 2009 would be warmer than 1998? Yet we have a 97% consensus! Yipeeeeeee.

Daniel Klein asks at #57:
“OK, simply to clarify what I’ve heard from you.
(1) If 1998 is not exceeded in all global temperature indices by 2013, you’ll be worried about state of understanding…………
————
[Response: 1) yes, 2) probably, I’d need to do some checking, 3) No. There is no iron rule of climate that says that any ten year period must have a positive trend. …..- gavin]
http://www.realclimate.org/index.php/archives/2007/12/a-barrier-to-understanding/

R. de Haan
December 29, 2013 11:35 am

Ain’t it rich, the sun screws up our weather but doesn’t play a role in our climate.
http://www.weatheraction.com/displayarticle.asp?a=613&c=5#

December 29, 2013 11:35 am

Dr. S
Lord Kelvin was right on almost anything.
Lord Kelvin, 1892
It seems as if we may also be forced to conclude that the supposed
connexion between magnetic storms and sun-spots is unreal, and that the
seeming agreement between periods has been a mere coincidence.”
Lord Kelvin, president of Royal Society, 1895
X-rays will prove to be a hoax.
Also attributed:
– Radio has no future.
– Heavier than air flying machines are impossible.

December 29, 2013 12:01 pm

vukcevic says:
December 29, 2013 at 11:35 am
“Lord Kelvin was right on almost anything.”
There is a good reason he is Lord Kelvin, the most celebrated physicist of his day.
“he did important work in the mathematical analysis of electricity and formulation of the first and second laws of thermodynamics, and did much to unify the emerging discipline of physics in its modern form. He worked closely with mathematics professor Hugh Blackburn in his work. He also had a career as an electric telegraph engineer and inventor, which propelled him into the public eye and ensured his wealth, fame and honur. For his work on the transatlantic telegraph project he was knighted by Queen Victoria, becoming Sir William Thomson. He had extensive maritime interests and was most noted for his work on the mariner’s compass, which had previously been limited in reliability.
Lord Kelvin is widely known for determining the correct value of absolute zero as approximately -273.15 Celsius. The existence of a lower limit to temperature was known prior to Lord Kelvin, as shown in “Reflections on the Motive Power of Heat”, published by Sadi Carnot in French in 1824, the year of Lord Kelvin’s birth. “Reflections” used -267 as an estimate of the absolute zero temperature. Absolute temperatures are stated in units of kelvin in his honour.”
Like many scientists, he did make some mistakes in predicting the future of technology.
Circa 1896, Lord Kelvin was initially sceptical of X-rays, and regarded their announcement as a hoax.[54] However, this was before he saw Röntgen’s evidence, after which he accepted the idea, and even had his own hand X-rayed in May 1896.[55]

December 29, 2013 12:09 pm

Dominic Manginell says:
December 29, 2013 at 10:45 am
Lief S. says about vukcevic December 28, 2013 1:45pm
Hathaway at least has the honesty to admit he was wrong (about SC24).

Hi Dominic
I did not predict anything, it is extrapolation of the formula that gives results, don’t see need to apologise for any aberration; after all ‘the exceptions prove the rule’.

December 29, 2013 1:22 pm

lsvalgaard says:
December 29, 2013 at 12:01 pm
(long summary of Lord Kelvin’s achievements)
Ergo: If lord Kelvin could be wrong about geomagnetic storms then Leif (I nearly wrote Lord) Svalgaard could be wrong about geomagnetic correlations too.
You referred to my correlation as
junk is junk and stink is stink
It is difficult to ascertain why scientist of your standing would be willing to say that a correlation based on reputable data is a ‘stink’. Not that it matters much to me, but if used in a moment of resentment, you might wish take the opportunity to withdraw the attribute.

December 29, 2013 1:34 pm

Kelvin was basically a creationist and also got the age of the earth hopelessly wrong. Here’s, a quote
“But overpoweringly strong proofs of intelligent and benevolent design lie all round us, and if ever perplexities, whether metaphysical or scientific, turn us away from them for a time, they come back upon us with irresistible force, showing to us through nature the influence of a free will, and teaching us that all living beings depend on one ever-acting Creator and Ruler”

William Astley
December 29, 2013 3:58 pm

lsvalgaard says:
again and again, on and on.
William:
What you believe concerning the solar magnetic cycle and what you have stated in this forum is almost completely incorrect. I can explain the mechanisms (what actually causes the solar dynamo), the observations and why you are incapable of considering a hypothesis that will completely invalidate your core beliefs which explains why you completely ignore recent solar observational data that supports the assertion that solar magnetic cycle changes caused the majority of more than 75% of the warming observed in the last 150 years and why your beliefs concerning the solar dynamo are completely incorrect. I am however convinced that you are incapable of changing your mind, so there is no point in discussing the science or what will happen next to the planet.
The planet is about to abrupt cool, due to the solar magnetic cycle change. I would assume the scientific community (scientists that are capable of admitting that they were incorrect) will respond to intense media and public pressure to provide an explanation for the abrupt cooling. I am waiting for the abrupt cooling as that will force a paradigm shift.
As note before planetary cloud cover closely correlated to GCR for the period 1983 to 1995, however suddenly in 1995 there was an abrupt reduction in planetary cloud cover. Post 1995, planetary cloud cover no longer correlated with GCR. Now a scientist would ask: What is the physical reason for the sudden change? (Hint the sun changed.)
http://www.megakastro.gr/weather_agro/Atmos_060302.pdf
The possible connection between ionization in the atmosphere by cosmic rays and low level clouds
4. The correlation between low clouds and ionization level in the atmosphere, 1983–2001 Fig. 2 shows the global annual averages of GCR induced ionization in the atmosphere and low cloud amounts for the period July 1983–June 2000 (ionization data is only updated to December 2000). A quick look at the data reveals the good agreement between those two quantities from 1983 to 1994, however, from 1995 to 2000 the correspondence breaks. The correlation coefficient (0.49) over the full period is significant only at the 85% level. There are several possible causes for the break of correlation after 1994, not least that a physical relationship between ionization and low cloud formation does not exist. However, it is worth mentioning that the new release of ISCCP data covers precisely the period 1995 onward, and increasing the mean level of the new data by only +1% would return the correlation coefficient to 0.89 (99.9% significance level). Some authors have suggested that the new (post-1994) ISCCP data may have a calibration error (Marsh and Svensmark, 2003), however, no such error has been reported by the ISCCP team so far.

December 29, 2013 4:35 pm

lsvalgaard says:
“The ap index and the solar wind have shown no trend the past 170 years:
http://www.leif.org/research/Ap-1844-now.png
AO and NAO conditions are regularly negative when the Ap index is low. As for the trend, unadjusted temperatures are pretty flat too: http://wattsupwiththat.com/2011/10/24/unadjusted-data-of-long-period-stations-in-giss-show-a-virtually-flat-century-scale-trend/

December 29, 2013 6:29 pm

vukcevic Dec.29,2013 at 12:09pm…sorry sir , I know you didn’t predict anything , I meant for an apology from Lief because he is comparing apples to oranges as everyone knows the methods used to count sunspots during SC5 and SC14 were different than methods used today. Get rid of the smoothing Lief ! Now then , put SC5 , SC14 , and SC24 MONTHLY counts up using pre-1945 methods . As all will see , SC14’s monthly count is VERY erratic with major peaks and valleys , but SC5 and SC24 have very limited swings each month…and LOW. I actually find your graphs very compelling Mr. Vukcevic…as I find Mr Svalgaard’s work extremely interesting and can tell both of you are very intelligent (much more than I) and believe passionately about your works…I hope you both keep searching for TRUTHS and look forward to each of yours and others search !

December 29, 2013 7:54 pm

Imagine that. The magnificent star that sustains all life on our planet not a factor in the climate of our world. I think I may need some of what Gavin Schmidt is smoking.

December 30, 2013 3:16 am

Dominic Manginell says:
…………
Hi Dominic
thanks for the comment.
At the time in 2003, when I devised formula I was barely aware of the sunspot cycle (my daughter science project, btw. she recently ‘post-graduated’ from Oxford). I recognised signs of cross-modulation and since it is a magnetic oscillation, I took orbital values of two largest sources of magnetism in the solar system and the sunspot formula was defined.
Even I am surprised how close it is for the SC24, but anyway I didn’t think it is worthwhile modifying basic principle that I started from, in order to fit in 2 or 3 past anomalies.

December 30, 2013 8:30 am

That depends. If you look at the total Holocene interglacial the actual trend is cooling from the Holocene optimum with some up and down squiggles. We are at present in an up squiggle thank goodness.
The best graph I have come across yet is HERE.

Oooo, the best graph of the Arctic Holocene temperature variations EVER because it is the only one with one of the major peaks clearly labelled BEER. Screw copper, screw iron. Beer was the start of the cultivation of cereal crops (to make beer), the sterilizer of parasite and disease-laden water and hence the mother of civilization itself.
As always, a graph with no error bars, though. People in climate science have sadly never heard of error bars. I don’t understand it. Presumably they were science majors and/or have science Ph.D.’s, and somewhere in there they should have learned that scientists who present experimental data are supposed to accompany it with an error estimate. Consequently we do not know from this graph alone whether the “signal” being presented is large or small compared to the probable error, and we do not know if the probable error is likely to be systematic/skewed or random/normal or (most likely) a mix of the two.
Error bars are really useful. For one thing, if you include them you ensure that you don’t make egregious claims based on the points themselves that can come back and bite you in the ass when it turns out that what you thought was a signal turns out to really have been — just noise. Humans have an overwhelming tendency to find meaning in noise. We see sheep in the fluffy clouds, big dippers in the stars, stenographic projections in colorful noise, trends in chaotic but trendless data. There are good reasons for this. For most of our evolution, our ability to survive hinged on being able to resolve the shape of the leopard hidden in the dappled light and dark pattern made by sunlight filtered through leaves. It hinged out our ability to connect disease caused by “bad water” from particular watering holes surrounded by certain kinds of rocks (rocks that later proved useful when humans learned to e.g. smelt lead). The penalty for being wrong was small — there are plenty of safe watering holes, and avoiding a tree that really isn’t hiding a leopard has little effect when there are many other safer trees around.
That’s not so much the case when the watering hole in question is the one that waters civilization itself, and no, I don’t mean beer this time. I mean energy. If we abandon carbon based energy sources, there are not a lot of economically viable alternatives and the cost/penalty of a mistake is absolutely enormous. It is so great that human civilization might well deliberately choose to continue using carbon based fuels anyway (as in fact we are so choosing) because leaping in a panic away from carbon could easily kill billions of people not in a hundred years but in the next thirty or forty. Poverty is the great reaper, and energy is the fundamental wealth. Several million people die every year right now because of energy poverty and things like particulate inhalation as they use “biofuels” (animal dung, charcoal, wood) to cook or provide light and heat in poorly ventilated huts, a poverty that is exacerbated and maintained by the high prices established worldwide for the use of carbon based fuels and the diversion of our considerable socioeconomic energies into saving the planet from the most benign climate of the last 1000 years instead of tackling the problem of global poverty head on.
If I were a conspiracy theorist (I don’t need to be, of course — plenty of them on WUWT already:-) I would be tempted to infer the existence of a global conspiracy to maintain global poverty, to maintain the gap between the haves and the have nots. I’d be tempted to accuse the energy producers themselves as being the primary funders of this conspiracy, as they are the ones who most obviously benefit from the entire “carbon is evil” shtick. Raise the price of gasoline (to “discourage driving”) and who benefits the most? Oil companies. Pressure coal mining companies to produce less coal in an inelastic market and all you do is drive up the price — and margins — of the coal miners, making the same profit with fewer employees and prolonging the lifetime of their investment. These are not bad times for energy companies, these are boom times! Energy has gone from being a comparatively minor expense to being a significant chunk of the cost of every product or service being purchased, a significant chunk of every household budget. Every penny spent on it pays its sliver of profit to who, exactly? Not Michael Mann, that’s for sure.
Of course, never attribute to human malice that which can be adequately explained by mere human stupidity. Such as the sort of stupidity that can arise simply because one discipline making egregious claims for a future anthropogenic disaster based those claims on a post hoc ergo propter hoc argument that is invariably presented without any error bars (and often without the perspective obtained by looking at the full geological climate record, pretending that “climate” begins in 1850 or so and that the warming observed since that date is “unprecedented”. Sure it is — unprecedented since 1850, and even back to that date, most of the “observed” warming is lost in the noise of measurement error. Go back and look over thousands of years (and ignore error) and you find many instances where the current warming is in fact precedented and indeed rather normal and expected.
This doesn’t mean that post hoc ergo propter hoc is wrong, or that their assertion is incorrect. It simply emphasizes that the curves alone are seriously insufficient evidence that there is anything unusual about the current climate, or anything “unusually” catastrophic waiting humankind in the wings. Because the climate is always catastrophic. It is a poster child for http://en.wikipedia.org/wiki/Catastrophe_theory — filled with fold bifurcations and cusp catastrophes in absurdly high dimensional spaces. It is dynamically multistable, and clearly exhibits Hurst-Kolmogorov puncuated equilibrium at multiple timescales in various projections of its dynamical behavior. Absolutely anything could happen in the Earth’s climate system, with or without variation of CO_2.
In this sense, the advice of the climate catastrophists is sound. The Earth’s climate is an enormously complex, unpredictable system. We cannot explain its past. We cannot predict its future. We can imagine that some of the things we do as a civilization affect it — both in the past (goatherding contributed to the creation of the Sahara Desert, which in turn very likely had a profound effect on the Holocene) and in the present and sure, in the future. Because it is a chaotic system and has the visible potential for (mathematical) catastrophes, the shift from one locally stable dynamical equilibrium to another that might have very different properties, it is best not to kick it too hard simply because we are currently living in very nearly the best of times, climate wise and any change at all is likely to be less good. On the other had, it is not going to be stable no matter what we do, and there is a very real possibility that we have been approaching the catastrophic bifurcation fold associated with a drop into glacial conditions, which have dominated some 500 of the last 600 years.
Personally, I see little evidence in the historical record for a likely return to a still-warmer locally stable phase, e.g. pre-Pliestocene conditions, whatever the models say. I’m also not at all certain that such a return wouldn’t on the whole be beneficial if it should occur, certainly if the “natural” alternative would have been triggering the next 90,000 year stretch of glaciation. And obviously I do not place a lot of faith in the numerical models given that they cannot explain precisely the graph you present, with or without the beer. Over the unbelievably short period for which we have adequate but not spectacular data for comparison (most of which is used to initialize and tune the models themselves) they have shown remarkably little predictive skill. They do not agree with the actual (new) data and they do not agree with each other and their run-to-run noise within each model in general is far greater than the average warming each model predicts and in all cases deviates systematically from the observed lack of warming over the last 15+ years, at a time that CO_2-driven warming “should” have been cranking up to a full-tilt catastrophic boogie.
I do think it would be wiser, all things being equal, to burn less carbon for fuel to the extent that we can economically do so. There are better uses for oil and coal, if it comes to that. Radical measures are not, however, called for on the sole basis of the predictions of manifestly unsuccessful models, especially when in 20-30 years, sheer technological advance and economics are going to force a paradigm shift in our energy production mechanisms.
I think this may well be the real force driving CAGW. The late 19th and early 20th centuries were “driven” by the economics of fossil fuel recovery. Great fortunes were made — historic fortunes that created names we still recognize as defining “wealth”. Great power accrued to the wealthy individuals that controlled and continue to control the fossil fuel based delivery of energy.
However, this era is ending. It is ending whether or not the world does anything about “CAGW” or “CACC”. The only question is: just how much money the owners of these finite resources are going to make in the comparatively brief remaining period before they are either exhausted or so expensive to recover that they make cheaper alternatives economically viable. Could it be that they decided to create the CAGW issue out of whole cloth to maximize their sundown profits? It wouldn’t even take a conspiracy — just acting in self-interest would do it without coordination.
Note well, there are “catastrophes” in economic theory as well. One very predictable catastrophe is the crossover catastrophe where solar or thorium or (perhaps) thermonuclear fusion power can be produced, stored, and delivered as cheaply as carbon based fuels. In order, solar is happening (but in an uneven manner, as there are still technological challenges that are being overcome and as it will never work well outside of the tropics through temperate zone). The “gold rush” to solar is still decades away. Thorium is maybe happening, but again there are technical difficulties and any gold rush to thorium is decades away. Fusion is a crap shoot — not just technical difficulties but some serious physics to overcome there. Still, it could “pop” in a year, ten years, or a hundred years. Or even “never”, although I think that unlikely.
One thing is very likely indeed. We will not be burning mined carbon for fuel worldwide in 100 years. The main question is, when and where and how we will cross over from doing so now to alternative resources as they mature without causing the crash of civilization in the meantime due to panic and premature action.
rgb

December 30, 2013 8:42 am

“…We’ve looked at the orbit; it’s not the orbit.”
That part of the statement is plain wrong, changes in planetary orbits throughout the solar-system are one of the main causes of climate variability, over time orbital changes reverberate throughout the solar-system, Perturbation’s of outermost planet Neptune occur once approximately every 65-80 years. The last planetary Perturbation of Neptune began in 1984 and by 2000 it had changed the orbit of Uranus, this is important because the change in the orbits of Neptune and Uranus effect the orbit of Jupiter, which is known to be the major cause of Earths orbital changes.
There are also basic polarity changes that occur during these times between the planets, (some claim “coincidentally” with solar activity too!). If a climate expert looked at Earths orbital changes during such a short time-frame between the 1980’s and the 2000’s and concluded “it’s not the orbit.” it demonstrates that they have no grasp of time or concept of the scale of change that naturally takes place continuously.
It’s funny, although team climate moron dismisses orbital changes as not being significant enough to have any influence on earths climate yet, wasn’t there a paper/s published a few years back where Earths weather could change the length of a day? and as “weather is becoming more extreme” (lol) wouldn’t this change Earths orbit even more? Surly it must only be a matter of time before Earth goes flying off into deep space because human carbon dioxide is destabilizing earths orbit. /sarc

December 30, 2013 9:57 am

Robert Brown says:
December 30, 2013 at 8:30 am
That is an essay worth reading.
It is not only visual shapes, it works for sound too, ‘cocktail party effect’, I occasionally experience in busy London stores, lot of babble in many languages, including English, for my ears just a general background noise, suddenly I catch a word or a fraction of a sentence in my native language which is clearly filtered and an ‘brain alert’ is issued.
On the ‘error bars’, I often use data sets from existing data base, and more often than not these are not available.
Only the other day I was told by Dr. S. that a correlation I produced is a junk since there are no error bars. I checked his latest work submitted for publication, it doesn’t contain any or even mention, as far as I could find.
I can see usefulness of the error bars, but are they really that essential or is it just another statistical whizz?
Happy NY to all.

December 30, 2013 5:48 pm

William Astley says:
December 29, 2013 at 3:58 pm
planetary cloud cover closely correlated to GCR for the period 1983 to 1995, however suddenly in 1995 there was an abrupt reduction in planetary cloud cover. Post 1995, planetary cloud cover no longer correlated with GCR. Now a scientist would ask: What is the physical reason for the sudden change? (Hint the sun changed.)
A much more likely reason is that the correlation was spurious to begin with.