Guy Stewart Callendar

Guest Post by Willis Eschenbach

I greatly enjoy reading old science. Back fifty years or more ago, they actually did real science, not the “my model says it must be true” kind of thing that we are treated to today. In that regard, I’ve been fortunate to stumble on one of the earliest papers on the greenhouse effect, “The Artificial Production of Carbon Dioxide and its Influence on Temperature” by G. S. Callendar. There were a lot of curious and interesting things in the paper, which I’d heard of but never read, and which I’ll touch on in no particular order.

I was greatly encouraged by the description of Callendar in the header of the paper, where he is listed as the “Steam technologist to the British Electrical and Allied Industries Research Association”. I liked the guy already, he is a hands-on man, someone who describes himself as a “technologist”, and working in industry. What’s not to like? Plus, he wrote the article by himself, no team of 24 “co-authors”.

callendar photo

One of the first things I noticed was that although I’ve at times complained of the long lag time between submission to a journal and eventual publication, this one says:

Manuscript received May 19, 1937-read February 16, 1938

Eight months before it was “read”, and the paper was eventually published in April of 1938.

Moving on, here is his abstract, or “Summary” as it was called in that time and place:

SUMMARY

By fuel combustion man has added about 150,000 million tons of carbon dioxide to the air during the past half century. The author estimates from the best available data that approximately three quarters of this has remained in the atmosphere.

The radiation absorption coefficients of carbon dioxide and water vapour are used to show the effect of carbon dioxide on sky radiation. From this the increase in mean temperature, due to the artificial production of carbon dioxide, is estimated to be at the rate of 0.005°C per year at the present time.

The temperature observations at 200 meteorological stations are used to show that world temperatures have actually increased at an average rate of 0.005°C. per year during the past half century.

Being a numbers man, this interested me because as early as 1938 he’d estimated the total emissions, estimated the airborne fraction, and calculated the global temperature. So of course I had to go check it out, to see how his estimates compare to modern estimates.

The CDIAC has the carbon emissions data. The “past half century” from 1937 would have been 1887 to 1937. The CDIAC data puts the emissions during that time at 38,201 million tonnes of carbon. To convert to tonnes of carbon dioxide, we need to add the weight of the oxygen. The atomic weight of carbon is 12, and the atomic weight of oxygen is 16. The atomic weight of CO2 is 12 + 2 * 16 = 44. So we need to multiply 38,201 million tonnes of carbon times 44/12, which gives us 140,000 million tonnes of CO2, compared to Callendar’s estimate of 150,000 million tonnes … not bad, not bad at all.

As to the “best available data” estimate of the airborne fraction, Callendar says:

I have examined 21 very accurate set of observations (Brown and Escombe, 1905), taken about the year 1900, on the amount of carbon dioxide in the free air, in relation to the weather maps of  the period. From them I concluded that the amount of carbon dioxide in the free air of the North Atlantic region, at the beginning of this century, was 2.74 ± 0.05 parts in 10,000 by volume of dry air.

This translates to 274 ppmv in the year 1900. I note that this is significantly less than the value given by the ice core data, which is about 295 ppmv.

mauna_loa_ice_core_co2_1000_2010

The “pre-industrial” value in 1750 is usually set at 274 ppmv. This difference raises lots of interesting questions I won’t go into here. Unfortunately, although the Brown and Escombe 1905 paper is online here, it makes no mention of the “21 very accurate sets of observations”. I wish I had the data, particularly since his error estimate is ±5 ppmv.

I did like his method, though, which appears to consist of looking at the observations and the weather maps at the time of the observations. This would allow him to infer the source of the air being sampled at a given time, and to choose samples from say off of the ocean rather than from the town. Clever. From this he calculates a 6% increase in CO2 by 1937. Curiously, he had no actual figures for the CO2 in 1937, he estimated it. What do the modern ice core records say the increase in CO2 was from 1900 to 1937?

6% …

He then goes on to say:

Since calculating the figures in Table I, I have seen a report of a great number of observations on atmospheric CO2 , taken recently in the eastern U.S.A. The mean of 1,156 “free air” readings taken in the years 1930 to 1936 was 3.10 parts in 10,000 by volume. For the measurements at Kew in 1898 to 1901 the mean of 92 free air values was 2.92, including a number of rather high values effected by local combustion, etc.; and assuming that a similar proportion of the American readings are affected in the same way, the difference is equal to an increase of 6 per cent.

What truly impressed me, though, was the final sentence of that paragraph, which reads:

Such close agreement with the calculated increase is, of course, partly accidental.

Gotta love a scientist as honest as that.

From there he goes into a fascinating discussion of the physics of the absorption of upwelling longwave radiation, and the characteristics of downwelling longwave radiation. This is followed by another most interesting description of how he has estimated the temperature changes since 1900. Not having HadCRUT or Berkeley Earth or GISSTEMP datasets, of course, he had to go out, find the station data, and analyze it.

Surprisingly, he goes on to discuss the “urban heat island” (UHI) effect, saying:

It is well known that temperatures, especially the night minimum, are a little higher near the centre of a large town than they are in the surrounding country districts; if, therefore, a large number of buildings have accumulated in the vicinity of a station during the period under consideration, the departures at that station would be influenced thereby and a rising trend  would be expected.

Clearly a man ahead of his time.

How well did he do? Here’s the comparison of his results with those of the Berkeley Earth Surface Temperature dataset.

callendar and berkeley earth temps

Comparison, global temperature anomaly estimates of Callendar (1938) and Berkeley Earth Surface Temperature (2014)

Now, I gotta give Callendar full marks for that one. Despite the difference in the linear trends, which may be due to his reducing the trend to adjust for the UHI effect, his results correlate very well (0.84) with the modern estimate.

Then, another surprise. He talks about how the climate system is not static, but instead it responds to changing temperature, saying (emphasis mine):

On the earth the supply of water vapour is unlimited over the greater part of the surface, and the actual mean temperature results from a balance reached between the solar “constant” and the properties of water and air. Thus a change of water vapour, sky radiation and temperature is corrected by a change of cloudiness and atmospheric circulation, the former increasing the reflection loss and thus reducing the effective sun heat.

This is the earliest of the very few examples I’ve found of people expounding the concept that the temperature of the planet is self-correcting, that is to say that the Earth has inherent temperature-regulating mechanisms, and that it naturally balances at a certain temperature, and it corrects itself when it departs from that balance. As I have spent some years investigating, measuring, and writing about just exactly how that system works in practice, I tip my hat to him. In fact, I’m in the middle of writing yet another post about the clouds and the temperature interact to establish that balance.

From there, he segues into a speculation on whether changes in carbon dioxide levels could have caused the ice ages. He states that he doubts CO2 could have done it, saying:

I find it almost impossible to account for movements of the gas of the required order because of the almost inexhaustible supply from the oceans, when its pressure in the air becomes low enough to give a fall of 5 to 8°C in mean temperatures.

Now, here’s the beauty part. I’m so indoctrinated by decades of being inundated with alarmism that I fully expected Callendar to conclude by warning of the dangers of rising CO2, impending Thermageddon, plagues, famines, rains of frogs, and the like. But to my great surprise and pleasure, here’s what he actually wrote:

In conclusion it may be said that the combustion of fossil fuel, whether it be peat from the surface or oil from 10,000 feet below, is likely to prove beneficial to mankind in several ways, besides the provision of heat and power. For instance the above mentioned small increases of mean temperature would be important at the northern margin of cultivation, and the growth of favourably situated plants is directly proportional to the carbon dioxide pressure (Brown and Escombe, 1905): In any case the return of the deadly glaciers should be delayed indefinitely.

You can’t say fairer than that.

My best to all,

w.

PS—A final thought. I was most impressed by a practice which I don’t see in the modern scientific journals. The journal invited comments and questions on the paper from no less than six other people knowledgeable in the field. Then the journal published their comments and questions along with Callendar’s answers to them, not three issues down the line, but at the bottom of Callendar’s study itself.

When I saw that, I had to laugh. Why? Because it’s identical to the format of a blog post. Someone puts up a head post, you read it, and at the bottom of the head post you read other people asking questions and raising issues, and the author of the head post responding to them right there.

How fascinating. The journals have abandoned that format of publishing the article along with the questions and responses at the same time … and instead, it’s become the format of the web.

DATA: Callendar’s paper, THE ARTIFICIAL PRODUCTION OF CARBON DIOXIDE AND ITS INFLUENCE ON TEMPERATURE, is here. When I said above that I “stumbled across” the paper, to be clear I came across it doing what I do from time to time. I go to the AGWObserver and do a search for the words “FULL TEXT”. His content changes, he’s always adding new stuff, and best of all, he tags everything that’s not paywalled. As a working man with no university library to call on, that’s invaluable to me … or if not invaluable, at least valued at the usual price of $39.50 per paper, which adds up very fast. So I was cruising along at the Observer looking at “FULL TEXT” items when I came to Callendar … my great fortune.

AS ALWAYS: If you disagree with someone, please QUOTE THE EXACT WORDS YOU DISAGREE WITH. It’s the easiest and most accurate way for us all to be clear about exactly what you are objecting to. I can defend my words. I cannot defend your paraphrase of my words. If you disagree, I implore you, QUOTE.

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Paul Mackey
Reply to  Willis Eschenbach
November 14, 2014 12:56 am

Fascinating – Thanks Willis
I suppose gathering the comments is why there was such a long delay in publishing? Things often go too fast these days, leaving no time for careful consideration.
I have a question for you. The CDIAC data mentions the “carbon” emissions. You then convert to carbon dioxide. But when they say “carbon” emission do they not mean carbon dioxide, in the unspecific (and very unscientific) way many folk do when they talk about emissions?

daddydunit
Reply to  Paul Mackey
November 14, 2014 7:45 am

When calling CO2 Carbon pollution, based on the % of its molecular weight, it is more an Oxygen pollution.O2 is highly corrosive.

Jim G
Reply to  Paul Mackey
November 14, 2014 9:22 pm

@daddyunit – O2 is highly corrosive.
Ah but therein lie the beauty of molecules.
You can take highly toxic chemicals like Sodium and Chlorine; put them together, and voila, something that our bodies cannot live without.
Plus it makes chicken taste better!

george e. smith
Reply to  Willis Eschenbach
November 14, 2014 12:59 pm

Willis, check out Callendar & Barnes “continuous flow calorimeter.” Neer actually encountered Callendar’s name sans Barnes.
G

Truthseeker
November 13, 2014 9:47 pm

This is an example of why scientists gained such a good reputation over many years. That reputation has been trashed very quickly by politically motivated, rent seeking alarmists who care nothing about reality, only about getting more money for doing nothing useful.

vonborks
Reply to  Truthseeker
November 14, 2014 11:07 am

The AGW/CC Study Grant industry is very big, it would be interesting to see an estimate in $ of just how much taxpayer money is spent each year “justifying” the IPCC theory.

TYoke
Reply to  Truthseeker
November 14, 2014 2:18 pm

Yours is an important point. We are like improvident heirs, blowing through the old man’s painstakingly accumulated fortune.
After the accumulated societal respect for science has been destroyed by opportunistic alarmists, what then?

TYoke
Reply to  TYoke
November 14, 2014 2:25 pm

In writing the above comment, I was thinking in particular of Ed Begley, who claims that the alarmist point of view MUST be correct since after all, the science is “peer reviewed” by guys with PhD’s after their names. Who are we to criticize <>.
http://blogs.telegraph.co.uk/news/jamesdelingpole/100017987/climategate-what-gores-useful-idiot-ed-begley-jr-doesnt-get-about-the-peer-review-process/

Jim G
Reply to  TYoke
November 14, 2014 9:27 pm

The appeal to authority argument: argumentum ab auctoritate, he’s an expert, therefore, he must be correct.

Mike Macray
Reply to  Truthseeker
November 15, 2014 2:30 pm

right on Truthseeker! being of the slide-rule era myself it seems that through specialization we know more and more about less and less en route to knowing everything about nothing!.. but then didn’t Leibnitz and Newton do that on the way to Infinitessimal Calculus?

Anything is possible
November 13, 2014 9:52 pm

No problem, Willis.
I think it is worth drawing readers attention to Fig. 2 :
It shows that Callender estimated the effect on temperature of doubling CO2 from 300ppm to 600ppm to be close to +1.5C. That number looks somewhat familiar……..
So have thousands of climate scientists racking up millions of man-hours, funded by billions of dollars and backed by dozens of GCM’s and 5 IPCC reports simply been re-inventing the wheel?

wayne
Reply to  Anything is possible
November 14, 2014 1:34 am

Where did you get the +1.5C from figure two??
Callendar’s rate is +0.06 C° per decade or +0.6 C° per century if there does not exist some natual process to counteract such a rise. However, then he is saying there seems to be water vapor that does resist such a change and that is the same thing that Ferenc Miskolczi’s work indicates.

Reply to  wayne
November 14, 2014 7:00 am

Here is the relevant equations, and parameters Callendar used.
http://i62.tinypic.com/15enpl.jpg
And here is the resulting Figure 2 graph from the Callendar paper
http://i58.tinypic.com/2uii2z6.jpg

Anything is possible
Reply to  wayne
November 14, 2014 9:01 am

Thank you, Joel.

rgbatduke
Reply to  wayne
November 14, 2014 12:35 pm

Interesting, Joel.
From screen scraping the graph, Callendar predicted a temperature anomaly of 0.62 or thereabouts from 1937/300 ppm to 2014/400 ppm. The actual HadCRUT4 anomaly is around 0.58. Callendar therefore agrees, closely, with both the data and with the current forcing model from CO_2 only with a climate sensitivity of around 2.62. If anything, he is a bit on the warm side.
Note that his warming rate isn’t predicted as 0.6/century. It is predicted as 0.6 per increase from 300 to 400 ppm, or (on a log scale) with any multiplication of the current concentration by 1.333 and his prediction is a rather good one.
rgb

Reply to  wayne
November 14, 2014 5:33 pm

Steve Mac digitized Callendars published curve, and did a fit. The answer was an ‘Effective’ sensativity of 1.7. See essay Sensitive Sensitivity in ebook Blowing Smoke. Effective is close to ECS, and always higher than TCR. Difference between Effective and Equilibrium depends on lots of uncertain stuff like ocean thermal equilibrium, and how muchmof a difference that difference makes to the atmosphere…

Gary Hladik
Reply to  Anything is possible
November 14, 2014 10:26 am

“So have thousands of climate scientists racking up millions of man-hours, funded by billions of dollars and backed by dozens of GCM’s and 5 IPCC reports simply been re-inventing the wheel?”
Then the science was “settled” back in the 1930’s? 🙂

philincalifornia
November 13, 2014 10:01 pm

“and the growth of favourably situated plants is directly proportional to the carbon dioxide pressure (Brown and Escombe, 1905): In any case the return of the deadly glaciers should be delayed indefinitely.”
Nice catch Willis. Two really interesting comments there. The linearity (i.e. not logarithmic) nature of the increase in vegetation, which is why we can see this effect, versus the bogus, made-up, purported effects of the logarithmically diminished back-radiation monster.
The return of the deadly glaciers, postponed indefinitely ?? I would like to think he was right on that, but suspect he’s probably not.

John F. Hultquist
November 13, 2014 10:07 pm

What’s not to like? Thanks.
~~~~
One irony here is the juxtaposition of this post on the same head-page (?) with the one by our host titled – Claim: “golden age of climate science, models” is upon us” –

November 13, 2014 10:18 pm

What a pleasure to read such a sensible and reasonable approach to the difficult topic of Climate and CO2. His estimate of the effect on temperature of doubling CO2 from 300ppm to 600ppm, to be close to +1.5C.looks much better and more reasonable than the wild IPCC assertions.. Guy Stewart Callendar is a real scientist not a rent-seeker or rationalist for Global Warming Alarmism, inventing data to order.. I wish there had been more of him.

Steve McIntyre
November 13, 2014 10:27 pm

Willis, I wrote two posts on Callendar last year that you should read or re-read:
http://climateaudit.org/2013/07/21/results-from-a-low-sensitivity-model/
http://climateaudit.org/2013/07/26/guy-callendar-vs-the-gcms/
Other things to like about Callendar are that he was born in Canada and that he was a good tennis player.

Reply to  Willis Eschenbach
November 14, 2014 12:11 am

Yes, yes, but these were the days when Canada was England’s back garden! So we are claiming him here in England as one of our own. Take that red leaved flag down, there boy. And hoist the Union Jack.

climatereason
Editor
Reply to  Steve McIntyre
November 14, 2014 12:53 am

Hmm. This would be they Guy Callendar whose British Parents (a briiliant Cambridge phyisicist as a father) briefly worked at a Canadian University then immediately after the birth of Guy in Montreal came back to England? The biography is well worth reading.
http://www.amazon.co.uk/The-Callendar-Effect-Established-Historical/dp/1878220764#reader_1878220764
tonyb

Paul Mackey
Reply to  climatereason
November 14, 2014 12:57 am

The Ghost…
Surely on land that should be the Union Flag?

Reply to  climatereason
November 14, 2014 3:06 am

Paul – a popular misconception. Here in Britland you’ll only EVER hear it called the Union Jack. The idea of it being only called that at sea is one of those internet myths, I’m afraid.
http://www.flaginstitute.org/wp/british-flags/the-union-jack-or-the-union-flag/

Stephen Richards
Reply to  Steve McIntyre
November 14, 2014 1:15 am

You are somewhat predisposed to liking this guy, then, Steve ?

noaaprogrammer
November 13, 2014 10:27 pm

I wonder how many citations Guy Stewart Callendar has garnered over the intervening time.

November 13, 2014 10:32 pm

It would be interesting to compare the spatial coverage provided by the temperature stations that Callendar had access to vs. those in modern databanks like Berkeley Earth or GHCN-D. I suspect that greater coverage in more remote regions (that hadn’t been assembled in a central repository in Callendar’s time) along with the correction of various inhomogenities accounts for much of the difference, rather than any explicit UHI correction on Callendar’s part.

tetris
Reply to  Zeke Hausfather
November 14, 2014 1:05 am

I don’t get it Zeke. It seems to me that one has to be pretty obtuse these days to continue to pretend that the UHI effect doesn’t count.
For reference, the KNMI in the Netherlands wised up to the UHI effect a few years ago and recalibrated a thermometer unit in Hilversum that had slowly been encroached upon by urban development, realizing that its readings when they caught on to the issue, were off by +0.3C.

Old England
Reply to  tetris
November 14, 2014 1:45 am

In the UK weather forecasts routinely predict cold weather temperature differences between large urban centres and the surrounding countryside of the order of 3 degC and sometimes more. Curiously UEA tend to use a much smaller adjustment for UHI of around 1 degC from what I can make out.

beng
Reply to  tetris
November 14, 2014 6:12 am

Old England, here in the States where there are truly rural areas fairly near urban areas, the difference can routinely be 10F (5C) on clear, calm, low-dewpoint mornings.

Reply to  tetris
November 14, 2014 7:39 am

Tetris,
I doubt anyone argues that UHI isn’t a real physical effect. Its impact on long-term trends is also detectable but complicated. I published a paper on the subject last year: http://onlinelibrary.wiley.com/doi/10.1029/2012JD018509/abstract

milodonharlani
Reply to  Zeke Hausfather
November 14, 2014 2:19 pm

Possibly. Would like to see his stations, but bear in mind that much of the world was actually better sampled under colonial regimes in the 19th & early 20th centuries than after independence from the 1960s.

Frans Franken
November 13, 2014 10:36 pm

Willis, thanks for another interesting post.
You quote Callendar:
>>> On the earth the supply of water vapour is unlimited over the greater part of the surface, and the actual mean temperature results from a balance reached between the solar “constant” and the properties of water and air. <<>> This is the earliest of the very few examples I’ve found of people expounding the concept that the temperature of the planet is self-correcting, that is to say that the Earth has inherent temperature-regulating mechanisms, and that it naturally balances at a certain temperature, and it corrects itself when it departs from that balance. <<<
However if i read Callendar correctly, he's saying that a (new) actual temperature results from a balance between solar input and water cycle plus atmosphere (including CO2). That actual temperature may be different from the one before balance was disturbed (e.g. by inserting CO2 in the atmosphere).

Reply to  Willis Eschenbach
November 14, 2014 6:15 am

I think that clouds in the tropics not only regulate temperature, but also, regulate CO2 emissions into the upper atmosphere where it is globally distributed. Those emissions are orders of magnitude greater than anthropogenic emissions.

mellyrn
Reply to  Willis Eschenbach
November 14, 2014 7:52 am

So the difference between normal times and ice ages would be a different balance point around which the “correction” happens?
(I’m mildly bothered by the connotation of “correct” as in “right and proper”, when it seems that the current “balance point” is, well, abnormal — abnormally cold. But only mildly.)
I wonder what the dickens changes the balance point. Would that “balance point” be what’s meant by an “attractor”?

bw
November 13, 2014 10:37 pm

The Callendar paper of 1938 is considered by some to be the historical foundation of the modern global warming movement. Here is a direct link to the full text paper.
http://onlinelibrary.wiley.com/doi/10.1002/qj.49706427503/pdf
The paper assembles quantitative calculations on all the basic issues. His Figure 2 was a big step in the story. Callendar knew the heat transfer numbers for combustion gasses in boilers, water and CO2, so he knew how to extend those high temperature numbers down to Earth surface temps. The paper is a must read for anyone with any interest in “global warming” science. It is ironic that the warmists ignore that Callendar said CO2 was not a problem.
Callendar was limited by the IR sensor technology of his time, the quality of far IR measurements increased greatly in the 1950s. He also made a very bad guess on the amount of CO2 that remains in the atmosphere. He estimated CO2 exchange from air to seawater without including ocean currents and boundry later effects.
He also ignored the huge biological component of atmospheric CO2 exchange. Natural CO2 fluxes in the global biogeochemical cycle is at least 35 times larger than human CO2, and maybe much larger. His second sentence that three quarters of all anthropogenic CO2 remained in th air in 1938 was wrong. One half of all atmospheric CO2 is removed every 10 years, no matter what the source. CO2 never accumulates in the atmosphere, its just part of a flow system.
Your “CDIAC data puts the emissions during that time at 38,201 tonnes of carbon” should be 38,201 million tonnes. That’s 38 gigatonnes. Most global CO2 exchanges use gigatonnes. That’s ten to the ninth power tonnes. Petagrams is the same as gigatonnes. Earth’s atmosphere contains about 3000 gigatonnes of CO2 and at least 10 to 20 percent exhanges with oceans and land biology each year. There is no way that human’s 30 gigatonnes per year can accumulate in such large natural fluxes.

Reply to  bw
November 14, 2014 1:11 am

bw, Calendar slightly overestimated the amount of CO2 remaining in the atmosphere from the burning of fossil fuels, but given the limited data he had at that moment, he was not far off.
Human emissions today are about 3% of total emissions (~9 GtC/year), natural releases are 97%. But natural sinks are 98.5% of total emissions, 1.5% remaining in the atmosphere, (near) all human caused. If human emissions ceased today, there would be a drop of 1.5% of the flux (~4 GtC or ~2 ppmv) in the atmosphere.
How much natural CO2 circulates through the atmosphere (about 20% of all atmospheric CO2/year – 5 years residence time for any CO2 molecule) is irrelevant for the question how much of the surplus is removed: only the difference between total inputs and total outputs (currently ~2 ppmv/year) under the increased CO2 pressure (110 ppmv in 160 years time) is relevant. That gives an e-fold decay rate of slightly over 50 years or a half life time of ~40 years.
Further, IR technology wasn’t used up to the 1950’s (by C.D. Keeling) for CO2 monitoring. All pre-1950 measurements were with wet chemical technology with an accuracy of +/- 10 ppmv. Few were better, some were much worse…

Reply to  Ferdinand Engelbeen
November 14, 2014 9:53 am

‘Human emissions today are about 3% of total emissions (~9 GtC/year), natural releases are 97%. But natural sinks are 98.5% of total emissions, 1.5% remaining in the atmosphere, (near) all human caused.”
Please propose a mechanism for this effect. I submit that there is none, completely impossible for this to happen more than one year in a row. Seriously, Mother Nature does not do arithmetic…

Reply to  Ferdinand Engelbeen
November 15, 2014 5:46 am

Michael,
Mother Nature absorbs more CO2 if the partial pressure (pCO2) of CO2 increases (Henry’s Law) for the same temperature. The influence of temperature is quite small (~8 ppmv/K). Humans emit extra CO2 that isn’t part of the natural cycle and adds to the CO2 level in the atmosphere. It is the extra CO2 pressure which pushes more CO2 in oceans and vegetation, but not enough to absorb all human emissions (see Le Châteliers Principle). For the current 110 ppmv extra in the atmosphere, about halve the human emissions (as mass, not as original molecules) per year are absorbed, the other halve remains in the atmosphere…

Bill Illis
Reply to  bw
November 14, 2014 3:42 am

Actually, Guy Callendar’s estimate of the airborne fraction of CO2 at 75% was probably a good estimate for the time.
The airborne fraction has not always been 50%. It only stabilized at that value around 1950. In WWII, for example, it was likely less than 0% as CO2 ppm fell during WWII although there was high war production emissions.
The airborne fraction between 1920 and 1940 was indeed 75% according to the estimates of CO2 emissions and the ice core CO2 values for the time (taking into account it takes time for the ice to harden).
I can provide a chart of the estimates over time back to 1750 if someone wants.

Reply to  bw
November 16, 2014 4:45 am

Callendar may have been thoughtful in his early years but rejected data which did not fit with his thinking. It seems that later he became fixated with his ideas. It is worth reading this article http://www.biomind.de/nogreenhouse/daten/EE%2018-2_Beck.pdf which was peer reviewed. The article shows Callendar’s limited selection of CO2 data. When one “cherry picks” data any conclusions and calculations are not on a sound basis and are likely to be wrong.

Charles Nelson
November 13, 2014 10:57 pm

How strange to see a normal scientific approach to the issue after so many years of magical thinking and hysteria.

Konrad
November 13, 2014 10:57 pm

As Willis points out the comments of other scientists included are of interest. In particular those of Sir George Simpson and Professor D. Brunt. They got it right, Callendar got it wrong. Essentially additional radiative gases will just slightly speed up tropospheric convective circulation.
Callendar’s response was the usual “all other things being equal” handwaving. The mistake Callendar made in 1938 is still made in the parameterisations of GCMs today. No increase in speed of vertical circulation for increasing radiative gases.

Nigel S
Reply to  Konrad
November 13, 2014 11:35 pm

Thank you for this clear summary. Even so it’s a pity this steam technologist wasn’t on the reading list of a certain (in)famous railway engineer (all diesel by then perhaps?).

Konrad.
Reply to  Nigel S
November 14, 2014 4:40 am

Ah! Abdussamatov….
I bet he doesn’t get invited to too many IPCC parties 😉

Reply to  Konrad
November 14, 2014 12:19 am

Exactly! This is what needs to solved to calculate the effect of additional radiative gases on the Earth’s surface temperature:
http://file.scirp.org/Html/3-9801007/2786aedf-f5fe-470c-8af9-4710598bf569.jpg
A paper that does this can be downloaded here:
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=1539#.VF_Hnsk4QxE
From the conclusion:
“The decreasing of the cover (atmospheric) temperature causes the decreasing of the core (surface) temperature. Anti-greenhouse effect realizes on this way, and the decreasing of atmospheric transmission causes global cooling. It is found as the additional result that the radiative heat transfer qr has small influence on the integral heat balance. Greenhouse effect in it traditional interpretation realizes when one of the following conditions is satisfied: qs > 50 W/m2; εs > εa; γ < 0.4. It is found that trends of the climate change caused by the increasing of the carbon dioxide emission depends on the whole set of parameters realized actually nowadays. There is the great interest to determine the values of the parameters as reliably and quickly as possible. Small changes of the basic parameter values established after 12 years [7] don’t influence on our results."

Reply to  Edim
November 16, 2014 4:21 pm

Interesting paper from Abdussamatov et al . Certainly a better model than the black box with weightings climate models which make no physical sense. Long ago learnt about electrical circuit analogies of Fourier’s heat conduction relations. Of course it would not have been picked up by the so-called climate scientist who have no engineering knowledge.

Khwarizmi
November 13, 2014 11:56 pm

“Dr. C.E.P. BROOKS said that he had no doubt that there had been a real climate change during the past thirty or forty years. This was shown not only by the rise of temperature at land stations, but also by the decrease in the amount of sea ice in arctic and probably antarctic regions and by rise of sea temperatures. This rise of temperatures could however be explained, qualitatively, if not quantitatively, by changes in the atmospheric circulation, and in those regions where a change in circulation would be expected to cause a fall in temperature, there had actually been a fall; moreover, the rise of temperature was about ten times as great in the arctic regions as in the middle or low latitudes, and he did not think that a change in the amount of carbon dioxide could cause such a differential effect. The possibility certainly merited discussion, and he welcomed the papers as a valuable contribution to the problem of climate changes.”

Brooks got it right. Circulation changes do in fact predict temperature changes:
= = = = = = = = = =
Comparison of dT and ACI [cirulation index] (Figure 2.3A) shows their close similarity in shape, but ACI runs several years ahead of dT. Shifting the ACI curve by 4 years to the right (Fig 2.3B) results in almost complete coincidence of the curve maximums of the early 1870s, late 1930s, and middle 1990s.
http://www.fao.org/docrep/005/y2787e/y2787e03.htm
=====
CO2 concentration is only good for predicting plant growth: it will never predict temperatures.

James Bull
November 14, 2014 12:04 am

When he and others talk about “computing” and “calculating” they mean slide rules and log tables. in a book on Barnes Wallis it said he had a computer who (and you can read his name) did all his main calculations for him, just think what some of these men and women could have done with a super computer of today. No GIGO for sure.
Truthseeker November 13, 2014 at 9:47 pm
This is an example of why scientists gained such a good reputation over many years. That reputation has been trashed very quickly by politically motivated, rent seeking alarmists who care nothing about reality, only about getting more money for doing nothing useful.
Scientists of old earned their reputation for hard work, many did not just look at one thing in isolation but followed anything that took their interest so you see them working on things which might not be considered in their field. How would they have got grant/gov funding for looking at something no one wanted to pay for at the start?
James Bull

DirkH
Reply to  James Bull
November 14, 2014 5:10 am

“just think what some of these men and women could have done with a super computer of today. No GIGO for sure.”
It does not depend on the man; an iterative model will accumulate errors no matter the man. And today as in the past, there are lots of people who will tell you exactly how fast the model goes off the rails (the error grows exponentially); and other people, who ignore that, and come up with meaningless make-belief about the future a 100 years from now, and who will be given prices by tax-evading globalist foundations and sell many books about the coming catastrophe; like , prominently, James Lovelock , who is the best demonstration that these people are no idiots, but that they know exactly what they do.
And there were Flim-Flam men a hundred years back as well, so nothing changed really.

gareth
Reply to  James Bull
November 14, 2014 1:52 pm

Indeed – IIRC it was Nevil Shute who was Wallis’ chief calculator on the R100 project, also a rather good author (A Town Like Alice, etc).
Just a thought. We’re all talking as though CO2 were the cause of temperature rise (which “in theory” it should be), whereas detla vol CO2 lags delta T. If I understand Murray Salby right, he suggests that the causation is the other way round – increased T causes increased rate of emission of CO2 from the surface. If so, negative feedback from clouds would be a mechanism that made the system stable.

Reply to  gareth
November 15, 2014 8:42 am

Pre-industrial temperature was leading CO2 levels: about 8 ppmv/°C over glacial and interglacial periods in the past 800,000 years. Still leading 4-5 ppmv/°C over the seasons and in short term variability over 2-3 years around the trend.
But the recent increase of ~110 ppmv can’t be caused by temperature, as that would be from only 0.8°C temperature increase. That violates Henry’s law for the solubility of CO2 in seawater with temperature.
The opposite cooling of also ~0.8°C between MWP and LIA only caused a ~6 ppmv drop in CO2 in the high-resolution ice core of Law Dome…

tonyb
Editor
November 14, 2014 12:16 am

Willis
Nice article
It is worth reading Callendars biography. He did many interesting things as a Govt scientist during the war including resolving the problem of fog obscuring runways and impeding allied air operations.
Eventually he worked out that burning vast quantities of oil in a controlled manner next to runways created the conditions needed to lift the fog and many runways and operations continued operating.
In the 1962/3 harsh winter he came to believe his Greenhouse gas theory was incorrect.
I have his archives next to my computer. They are on CD and entitled ‘the papers of Guy Stewart Callendar’ published by AMS Books. I think you will find your questions answered there. It specifically covers
Manuscript letters
Journals
Weather and climate data
Family photographs
Giles Slocum did a very elegant demolition of his 1938 paper here, in particular Callendars use of selected co2 readings
http://www.pensee-unique.fr/001_mwr-083-10-0225.pdf
If there is a specific item in the cd you want me to search, let me know.
tonyb

climatereason
Editor
Reply to  Willis Eschenbach
November 14, 2014 4:36 am

Willis
Someone down the thread has referenced Callendars later doubts about the theory
http://wattsupwiththat.com/2014/11/13/guy-stewart-callendar/#comment-1788389
It was in the published biography that he had these doubts because of the unexpected severity of the British 1962/3 winter which could be truly described as LIA like.
tonyb

Konrad.
Reply to  Willis Eschenbach
November 14, 2014 4:16 am

Willis, the “elegant demolition” of Callendars’s paper is in the very discussion of the Royal Meteorological Society published at the end.
They used to say the late Kelly Johnston (Skunk Works) could “see the air”.
Sir George Simpson instantly saw what was wrong with Callendar’s paper, he could “see the air” –
“..but he would like to mention a few points which Mr. Callendar might wish to reconsider. In the first place he thought it was not sufficiently realised by non-meteorologists who came for the first time to help the Society in its study, that it was impossible to solve the problem of the temperature distribution in the atmosphere by working out the radiation. The atmosphere was not in a state of radiative equilibrium, and it also received heat by transfer from one part to another. In the second place, one had to remember that the temperature distribution in the atmosphere was determined almost entirely by the movement of the air up and down. This forced the atmosphere into a temperature distribution which was quite out of balance with the radiation. One could not, therefore, calculate the effect of changing any one factor in the atmosphere..”
You could take the time to read the history and contribution of Sir George Simpson to the advancement of the atmospheric sciences. (Or maybe you just will take the shortcut and call me a “jerkwaggon” again… 😉
Callendar, and everyone else who has ever claimed a net radiative atmospheric GHE (including the current “lukewarmers”) were wrong.
There can be no warming from CO2, not even a “tiny bit”. Not now. Not ever.

tonyb
Editor
Reply to  Willis Eschenbach
November 14, 2014 4:31 am

Willis
It was a ‘demolition’ of Callendars paper as far as much of the establishment was concerned, as it questioned various aspects of the paper. The earlier thinking had been very much along the lines of variable co2 to as high as 400ppm
It was ‘elegant’ because it was well written. So many modern science papers are over written and opaque.
I think the interesting thing in all this is that by 1945 we could split the atom but, despite 120 years of trying by many well known names, we apparently couldn’t accurately calculate the amount of co2 in the atmosphere and were unable to do so until Keeling managed it in the mid 1950’s
tonyb

Reply to  Willis Eschenbach
November 14, 2014 6:40 am

The main point of discussion was that there were lots of historical measurements which were rejected by Callendar, based on his pre-defined criteria (opposite to modern research that uses after-the-fact criteria to reject data that don’t fit their theory).
Some of his criteria could be discussed, some were entirely right: he rejected data made for agricultural purposes, like in Poona, India where CO2 was measured under, in between and above growing crops, he rejected all data which differed more than 10% of the “baseline”, etc…
20 years after his publication, the lack of huge variability in the bulk of the atmosphere was confirmed at the South Pole and Mauna Loa and again 30 years later the historical trend was confirmed by the first ice core measurements. Not bad for someone who used his common sense for taking the right selection criteria…

Paul Aubrin
Reply to  Willis Eschenbach
November 14, 2014 12:02 pm

There is the controversial Beck’s paper too.
http://www.biomind.de/realCO2/literature/methods_prior_1958.pdf
http://www.biomind.de/realco2/literature/co2rawdata1800-1960.xls
A comment by Ferdinand Engelbeen
http://www.ferdinand-engelbeen.be/klimaat/beck_data.html
Englebeen conclusion is that there was probably no local CO2 concentration peak in the 1940’s, high concentrations are observed in two separate places, one in Germany (a lot of frequent and accurate measures) and in India. The 1940’s were near a local maximum of the 60 years or so climate temperature oscillation (oscillation a bit blurred in recent data series, but still visible).

Konrad.
Reply to  Willis Eschenbach
November 14, 2014 3:46 pm

Willis Eschenbach
November 14, 2014 at 9:38 am
////////////////////////////////////////////////
”While I found Simpson’s comment to be interesting, I didn’t think it was an “elegant demolition” ”.
You can model near surface warming and upper atmospheric cooling by holding the speed of tropospheric convective circulation constant for increased radiative gas concentration. That is how the GCMs do it. What the commentators on the 1938 paper were pointing out is that any such temperature change would cause a vertical circulation change.
Here’s an extreme example from a simple CFD model of what happens when you change the altitude of cooling in a gas column in a gravity field –
http://i60.tinypic.com/dfj314.jpg
– no radiative cooling at altitude and our atmosphere would superheat. Climastrologists invoke “immaculate convection” to hide that “little” problem.
”When you act like a jerkwagon, Konrad, which is not infrequently, I’m not averse to pointing it”
Well yes, but I would prefer you use the more scientifically correct “complete bastard” 😉
”…however, both theory and observation disagree with you.”
I am clearly in disagreement with the net radiative GHE hypothesis, but both observation and experiment support my claim.
Either the net effect of our radiatively cooled atmosphere is surface cooling, or the net effect of our radiatively cooled atmosphere is surface warming. There can only be one right answer.

mpainter
Reply to  Willis Eschenbach
November 14, 2014 5:12 pm

Willis Eschenbach:
In your somewhat unpleasant response to Konrad above, you say that both theory and observation support the “warming from CO2” (quoting Konrad).
If you don’t mind, please state what observations support the “warming from CO2”.

General P. Malaise
Reply to  Willis Eschenbach
November 14, 2014 8:09 pm

does it make any difference to collect data at Mauna Loa since the whole area is very active volcanically?
..it seems a bit strange, like using skin cancer rates in Australia to make world wide applications. or picking one tree to make a hockey stick.

Konrad.
Reply to  Willis Eschenbach
November 15, 2014 2:22 am

”Konrad tends to infest my threads with claims that some experiment that he did sometime or other is enough to overturn decades of actual observations … which gets old.”
Nope, no joy there. I am clearly not making any claim to overturn “decades of observations”, just that the assumption that the unproven hypothesis of a net atmospheric radiative GHE exists on this ocean planet. The observations don’t confirm the radiative GHE assumption. Oh, and the build and instructions for multiple simple experiments have been published here and at other sites multiple times. Many have seen them, many now clearly understand. Some have even been clever enough to replicate. (you know, science.)
”He is totally beyond rational argument”
Funny thing, my degree is in design and engineering and so is my day job. “beyond rational argument”? Please. I don’t get time in commercial wind tunnels and hydrodynamics labs because I am beyond rational argument. Quite the reverse. I am smart enough to know when those shrieking “the maths says it must” are wrong. (just as you are) Further, I am old enough to know that when you need to confirm with empirical experiment, you will not just find answers you didn’t know, but questions you didn’t know to ask.
” I do my best to discourage his participation”
Your lukewarmist gatekeeping is indeed a delight! Especially taking into consideration your behaviour at Talkshop in 2011. Now what did I say before? “Willis has an ego the size of an exo-planet, you can observe his presence by the oscillation in the star he orbits.” Anthony is a star, as he is an empiricist. You are a blackboard scribbler. Please learn the difference.
”He is what I call a “SIF”, a single issue fanatic. He will never change his mind, he just repeats his same tired arguments over and over … so no, I make no special effort to be nice to him. I wish he’d just go away, all he does is encourage other SIFs to babble about their obsession, whatever that might be.”
Single issue? I’m sure you have tried that one before along with shrieks of “Slayer!!!” Could you enlighten other readers just which of my multiple experiments you thought was my “single issue”?
Was it –
A. The N&Z experiment where I showed the effect of higher atmospheric pressure on surface heating of the atmosphere?
B. The CO2 experiment over a SW illuminated surface that confirmed that Tyndall’s 1859 and 1860 work was correct and CO2 both absorbed and emitted LWIR?
C. The experiment in 2011 that showed that incident LWIR could not slow the cooling rate of water that was free to evaporatively cool?
D. The gas column experiments that showed that the atmosphere would superheat without radiative cooling at altitude?
E. The gas column experiments that showed that the surface could not conductively cool the the atmosphere as well as it conductively heated it?
F. The SW selective surface experiments that proved that the surface without radiastive atmosphere temperature should be 312K not 255K?
I’m guessing that your “single issue” is that you bought the lukewarmer line and I am a “complete bastard” who will keep reminding you of your fist-biting errors 😉

mpainter
Reply to  Willis Eschenbach
November 15, 2014 2:46 am

Willis, you seemed confused. The question concerned “warming due to CO2”, and you talk about “down welling IR”. Could be that you do not wish to answer.

Trick
Reply to  Willis Eschenbach
November 15, 2014 7:29 am

Konrad’s 2:22am experiments, conclusions and resultant “5 rules” 3:59pm are worthless as none are based on the full scientific method as described by Dr. Feynman. Willis is correct 8:18pm to use the term SIF. Konrad’s conclusions are political; are designed to mislead those not demanding full scientific method.
G.S. Callendar 1938 top post paper is well founded as provides complete measured data & sources, first principle computations and cites, those computations compared to nature per Dr. Feynman method. Nothing similar has been presented or published by Konrad. Sir George Simpson’s comment in the top post paper is also unfounded and Konrad has not presented a source citation wherein Simpson uses the full Dr. Feynman scientific method to offer a counter conclusion.

milodonharlani
Reply to  Willis Eschenbach
November 15, 2014 9:13 am

CO2 very well might not have been rising in the 1930s. Ice core data might lack the resolution to settle that question.
The 1920s & ’30s were on average globally warm, leading to CO2 coming out of seawater solution with some appropriate lag time, but heating requirements would have been lowered & of course industrial activity was depressed.

mpainter
Reply to  Willis Eschenbach
November 15, 2014 10:54 am

Trick,
It is an easy choice for me between you and Konrad. Or between Willis and Konrad. Konrad offers an alternative to the miserably failed AGW model of the atmosphere.
The fact that he is an engineer instead of a “climate scientist” makes him more creditable, IMO. His thinking is based on solid empirical results and that cannot be said for the AGW model. That someone would so readily dismiss his point of view and cling to the dubious modeling of the climateers is the measure of those who do. Willis has demonstrated his limitations as a person and as a scientist in his contemptuous dismissal of Konrad’s theories.

Trick
Reply to  Willis Eschenbach
November 15, 2014 1:55 pm

mpainter 10:54am: The top post 1938 paper by GS Callendar and commenter Konrad are your choices. Which of those two?

Konrad.
Reply to  Willis Eschenbach
November 15, 2014 5:18 pm

Willis Eschenbach
November 15, 2014 at 12:37 pm
/////////////////////////////////////////////////////
”Konrad, your response is a perfect example of what I’m talking about. This is a thread about Guy Stewart Callendar … but the actual subject of the thread means nothing to you. You don’t care, you’re gonna talk about your theory no matter what the thread might be about.”
Nope, that doesn’t square with the available evidence. Here was my first comment on Callendar –
http://wattsupwiththat.com/2014/11/13/guy-stewart-callendar/#comment-1788331
– clearly about vertical circulation and the RMSoc response to Callendar as was my second –
http://wattsupwiththat.com/2014/11/13/guy-stewart-callendar/#comment-1788416
I am clearly agreeing with the criticism of Callendar by Sir George Simpson, Brunt and others in the comments attached to the paper in 1938. This is an argument based solely on radiative subsidence and atmospheric circulation, nothing at all to do with water. I even posted a simple CFD model of one of my early gas column experiments into Rayleigh-Bernard circulation to illustrate the issue.
”You, as a true SIF, are always trying to bring the conversation back to the subject of your Single Issue Fanaticism, which is your untested and unsupported theory that downwelling IR does not warm the ocean.”
I couldn’t work out which “single issue” got you so riled, so I gave you 6 different types of experiment I had done and you picked “C”. This appears to be your “single issue” not mine 😉
”So, given that the ocean is not frozen solid … why not? What is providing the ~330 W/m2 of energy necessary to keep it liquid? Virtually everyone (except you) agrees that the energy deficit is made up by downwelling IR. You, on the other hand, have no answer to the question of why the ocean stays liquid … but as a true SIF, facts are of no interest to you.”
Facts are always of interest to me. The answer you are looking for was in experimental area “F” ie: the difference between near blackbody and SW selective surface. To a SW selective surface all watts are not equal, so no, an extra 330 w/m2 are not needed.
Willis, despite your false claim that I am a “Single Issue Fanatic”, my initial comments on this thread were in no way related to your 2011 mistake. They were about the mechanisms behind tropospheric convective circulation and the temperature profile changes that results from changing the height of energy entry and exit from gas in a gravity field. What Sir George Simpson and the others responding to Callendar were saying is correct, the temperature profile of the atmosphere is set by SW heating of the surface, surface heating the atmosphere and vertical circulation of air across the vertical pressure gradient of the atmosphere. I am pointing out that the primary role radiative gases play in this circulation is energy loss at altitude and radiative subsidence. Here is a quick primer in the role of radiative gases in atmospheric circulation from pre-AGW meteorology –
http://www.st-andrews.ac.uk/~dib2/climate/tropics.html

Air convected to the top of the troposphere in the ITCZ has a very high potential temperature, due to latent heat release during ascent in hot towers. Air spreading out at higher levels also tends to have low relative humidity, because of moisture losses by precipitation. As this dry upper air drifts polewards, its potential temperature gradually falls due to longwave radiative losses to space (this is a diabatic process, involving exchanges of energy between the air mass and its environment). Decreasing potential temperature leads to an increase in density, upsetting the hydrostatic balance and initiating subsidence. The subsiding air warms (as pressure increases towards lower levels), further lowering the relative humidity and maintaining clear-sky conditions. However, although the subsiding air warms, it does not do so at the dry adiabatic lapse rate. Continuing losses of longwave radiation (radiative cooling) means that the air warms at less than the dry adiabatic lapse rate (i.e. some of the adiabatic warming is offset by diabatic cooling).

Now do you get it? Radiative gases do cause atmospheric warming at low altitude, but they are the only mechanism for energy loss, and therfore buoyancy loss, at high altitude. They play a critical role in the speed of tropospheric convective circulation, which as Sir George Simpson was pointing out is the primary determinant of the atmospheric temperature profile. This is why the parametrisations in GCMs try to invoke “immaculate convection” (convective circulation that remains constant for increasing radiative gas concentration), because that way they can show near surface warming. But Sir George Simpson was correct –

One could not, therefore, calculate the effect of changing any one factor in the atmosphere..”

Callendar was wrong, he was doing the equivalent of a static atmosphere Modtran calc. Simpson was right, the air would just move faster.

Konrad.
Reply to  Willis Eschenbach
November 15, 2014 6:13 pm

Trick
November 15, 2014 at 7:29 am
//////////////////////////////////////////////
”Konrad’s 2:22am experiments, conclusions and resultant “5 rules” 3:59pm are worthless as none are based on the full scientific method as described by Dr. Feynman.”
Funny isn’t it Trick, that your “concurred” with the five simple rules for SW translucent materials derived from empirical experiment at Talkshop but had no rational explanation as to why they didn’t apply to our SW translucent oceans?
Although I probably shouldn’t be too surprised. You showed the limit of you scientific literacy in 2011, when you argued black and blue that I couldn’t drive convective circulation in a fluid column by removing energy from the top of the column 😉
Trick
November 15, 2014 at 1:55 pm
////////////////////////////////////////////////
”mpainter 10:54am: The top post 1938 paper by GS Callendar and commenter Konrad are your choices. Which of those two?”
Oooh! The “call to authority” game! Who to choose?
Callendar – Paper trashed by longest serving director of the Royal Meteorological Society?
Konrad – Engineering work wins IEA president’s award and gets exhibited in technology museum?
And the answer? Neither. You have to do the experiments for yourself. Trust but verify. Or alternativly –

Tell me I’ll forget. Show me I’ll understand. Let me do it and I will know

Trick
Reply to  Willis Eschenbach
November 15, 2014 9:40 pm

Konrad – Callendar 1938 still stands. He knew it was windy in nature.
As Willis writes & I concur: “I can’t stop you from babbling about your theory”. This political bluster babble 5:18pm, 6:13pm won’t work, won’t convince any that insist on scientific method as put forth by Dr. Feynman.
The only response you can make that can possibly show/convince your theory (and/or Simpson’s) out weigh’s Callendar 1938 is to do as Callendar does per Dr. Feynman science method: 1) professionally write up, present or publish your complete data & sources, 2) show your computations supporting the data based on first principles with citations to build on previous generally accepted work, 3) compare your computations to nature’s data favorably within proper CI. To date you show none of these. At all. How well you most capably diss Willis, I, et. al. is of no consequence. Callendar 1938 conclusions stand against your unprofessional criticism at the moment – until you complete the science method.
And it is Rayleigh-Bénard convection. If you appeal to authority, at least get the spelling right & look professional if you can’t be professional using science method.

Catherine Ronconi
Reply to  tonyb
November 15, 2014 1:02 pm

What a credit to old school science that he was willing to abandon convictions of three decades when presented with new evidence. But then his career and reputation didn’t depend on cleaving to a falsified premise. Compare and contrast his pro-scientific behavior with that of today’s Krazy Klimate Krew, who when confronted with the “Pause” make up dozens of excuses, each lamer than the last, in the bootless attempt to explain away reality so inconveniently stomping all over their clueless models.

Catherine Ronconi
Reply to  Catherine Ronconi
November 15, 2014 1:03 pm

Make that Crazy Climbat Cru.

phlogiston
November 14, 2014 12:30 am

Great paper indeed.
True scientific work such as this loses no value with the passing of time.
“They grow not old as we that are left grow old.
Age shall not weary them, nor the years condemn.”
Callendar 1937 is still the state of the art of knowledge of CO2 effects on climate.
Nothing of substance has been added since.
He will be proved correct that CO2 effects are beneficial,
despite the hi-jacking of his name by the alarmists.

geronimo
November 14, 2014 12:47 am

Callender didn’t have a university degree, as far as I’m aware his qualifications where acquired from the City and Guilds of London, an organisation that specialised in providing technical courses for apprentices. Can you imagine the sneering he’d receive from Gavin and Co today – a pleb presuming to do climate science without a university degree?

Reply to  Willis Eschenbach
November 14, 2014 8:23 am

Willis,
You are safe here, no one cares about degres, just whether what you say is true or not. An activist with a Ph.D and a white coat is still an activist, and a scientist with trade certification And a little grease on his fingers is still a scientist.
Carry on Willis.

Reply to  Willis Eschenbach
November 14, 2014 2:32 pm

be strong willis…thats more science than al gore exposed himself to in college….

milodonharlani
Reply to  geronimo
November 14, 2014 2:49 pm

He had a respectable certificate (a three year program, IIRC, please correct me if wrong) in Mechanics & Mathematics from C&G College, which belonged to Imperial College, where his dad was physics prof. His subsequent employment as one of his dad’s two research assistants would have been comparable to doctoral work, IMO. He’d also done important technical work during the Great War.
IMO, his certificate was comparable to Einstein’s diploma from a technical institution. In any case, his academic credentials far outshone those of Faraday.

November 14, 2014 1:21 am

Willis, such a great story about a great scientist!
If you have the time to read another great story of another real scientist of the old school, then read the autobiography of C.D. Keeling about how he did come to monitoring CO2 in the atmosphere and his struggle to maintain funding over the years against the different administrations that thought it was all a waste of money:
http://scrippsco2.ucsd.edu/publications/keeling_autobiography.pdf

knr
November 14, 2014 1:32 am

The difference , now there well paid careers and fame and fortune to be had by getting ‘the right results ‘ in his day there was not.
Plus having to manage large data sets by hand meant you spent a long time thinking about what you did and how good the data was before you committed to its usage , now it’s just push the button without ‘check one ‘ because who needs to because the computer never wrong is it.

Leo G
November 14, 2014 1:39 am

Also interesting to note that before his death in the 1960s Callendar accepted that the multi-decadal pause in warming had effectively falsified his carbon dioxide theory of global warming. That is poossibly why you hear very little about him from warmists.

Reply to  Leo G
November 16, 2014 9:46 am

“Also interesting to note that before his death in the 1960s Callendar accepted that the multi-decadal pause in warming had effectively falsified his carbon dioxide theory of global warming.”
Umm – did he assume a simple continuing relationship, when there may be other factors that vary about the simple continuing relationship, resulting in pauses or even cooling?
Seems to me there’s been an apparent 60-year cycle for at least two cycles, but if so something has shifted. (Late 19th century was a bit cooler, mid-1930s a bit warmer, into 1970s a bit cooler, late 1990s a bit warmer, approximately speaking. Reference “Climate_Changes_and_Fish_Productivity – 60-year cycle” by Klyashtorin and Lynbushin, which also suggests a lag of Arctic ice by about 8 years.
But no decline yet, even though we are halfway into the length of the decline that would be expected from a 60-year period.)
One thing to keep in mind is that cyclic phenomena of different period reinforce or counter each other depending on how they match up – which shifts over time. Add lags to that, such as from the huge thermal reservoir called “oceans”, and climate is very complex.
(Has recent ENSO experience suggested such reinforcement and countering?)

ivor ward
November 14, 2014 1:45 am

So, what we are saying here is that everything that is known today was known in 1937. In the meantime trillions of $ have been thrown at Academics and Universities to increase our knowledge by a factor of zero. Good investment.

luvthefacts
November 14, 2014 1:51 am

Great stuff!
I’d like to go a bit off topic though to mention the G20 and the superb weather that we lucky Queenslanders are experiencing this weekend. Thanks to all for every CO2 molecule that’s up there & I’m not b/sing.
We are fortunate enought to have high temps predicted & Queenslanders have done the polite thing – they’ve left Brisbane to the Politicians and gone to the Gold and Sunshine Coasts.
Looks like a fantastic, hot, seaside weekend coming up.
Best wishes to all, enjoy the Sun.

Admin
November 14, 2014 2:09 am

Thats not proper climate science, where is the apocalyptic warning and the guilt trip?

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