Deconstruction Of The Anthropogenic Global Warming (AGW) Hypothesis

Guest Opinion: Dr. Tim Ball –

[Note: Some parts of this essay rely on a series of air sample chemical analysis done by Georg Beck of CO2 at the surface. I consider the air samplings as having poor quality control, and not necessarily representative of global CO2 levels at those times and locations. While the methods of chemical analysis used by Beck might have been reasonably accurate, I believe the measurements suffer from a location bias, and in atmospheric conditions that were not well mixed, and should be taken with skepticism. I offer this article for discussion, but I don’t endorse the Beck data.  – Anthony]

The failed predictions (projections) of the Intergovernmental Panel on Climate Change (IPCC) are proof that there is something seriously wrong with the science. A useful analogy of how to analyze what we are witnessing is that it is like coming upon a car wreck. What you see and what happened is hard to figure out. It takes a lot of measurements and deconstruction to reconstruct what happened. Deconstruction of the IPCC wreckage must begin with determining what they did prior to the crash and those actions involved creating conditions for a self-inflicted crash. I know some of this material is not new. I covered some of it myself. However, it is time to revisit because more people are aware of what is going on and are now on the crash scene.

IPCC and their proponents drew the map, built the roads, and designed the traffic signals, but they also designed, built and drove the car. They did not plan to crash and did everything to reach their destination. The problem developed because of the assumptions they made and the manipulation of the data needed to pre-meditate the result of the trip; a crash was inevitable.

What were the conditions they considered necessary to reach their destination? There are two distinct lists. The first is a list of the assumptions made for the scientific part of the AGW hypothesis. The second is a list of the starting conditions necessary for the political part of the AGW objective.

Scientific Assumptions

 

1. CO2 is a gas with effectively one-way properties that allows sunlight to enter the atmosphere but prevents heat from leaving. It supposedly functions like the glass in a greenhouse.

2. If atmospheric CO2 levels increase, the global temperature will increase.

3. Atmospheric levels of CO2 will increase because humans are adding more every year.

Political Assumptions

 

1. Global temperatures are the highest ever.

2. Global temperatures rose commensurate with the start of the Industrial Revolution.

3. CO2 levels are the highest ever.

4. CO2 levels were much lower before the Industrial Revolution.

5. CO2 levels continue to rise at a steady rate because of the annual contribution of humans.

Data Sources

Major objectives were to start with a low pre-industrial level of atmospheric CO2 and have a steady rise over the last 150 years. Data sources included the following

1. Bubbles extracted from ice cores, but primarily the Antarctic record.

2. Stomata are the pores on a leaf through which plants exchange gases with the atmosphere. The size varies with atmospheric levels of CO2.

3. Approximately 90,000 instrumental readings from the 19th century. Measurements began in 1812 as science determined the chemistry of the atmosphere.

4. Modern instrumental readings primarily centered on the Mauna Loa record begun in 1958 by Charles Keeling as part of the International Geophysical Year (IGY).

5. The recently launched NASA Orbiting Carbon Observatory OCO2 satellite with the first published data of CO2 concentration for October 1 to November 11, 2014.

6. IPCC estimates of human production of CO2, known currently as Representative Concentration Pathways (RCP).

The first question is what are the non-human sources and sinks of CO2. The answer is we don’t know. All we have are very crude estimates of some of them but no actual useable measures. Remember what the IPCC said in Box 2.1 Uncertainty in Observational Records.

 

The uncertainty in observational records encompasses instrumental/ recording errors, effects of representation (e.g., exposure, observing frequency or timing), as well as effects due to physical changes in the instrumentation (such as station relocations or new satellites). All further processing steps (transmission, storage, gridding, interpolating, averaging) also have their own particular uncertainties. Because there is no unique, unambiguous, way to identify and account for non-climatic artefacts (sic) in the vast majority of records, there must be a degree of uncertainty as to how the climate system has changed.

 

It is important to note that they identify one exception because it is important to their narrative, but also for recreating the IPCC wreck.

The only exceptions are certain atmospheric composition and flux measurements whose measurements and uncertainties are rigorously tied through an unbroken chain to internationally recognized absolute measurement standards (e.g., the CO2 record at Mauna Loa; Keeling et al., 1976a).

 

The IPCC provide a bizarre and confusing diagram (Figure 1) that is more about creating the base scenario for their narrative than it is about providing clarification.

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Figure 1

I don’t normally include the legend of a graph or diagram but, in this case, it is informative. Not that it provides clarification, but because it illustrates how little is known and how important it is to direct the focus on human production of CO2 over the Industrial Revolution period. This is not surprising since that is the definition of climate change they received in Article 1 of the United Nations Framework Convention on Climate Change (UNFCCC). If you drive like this, a crash is inevitable.

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Figure 6.1 | Simplified schematic of the global carbon cycle. Numbers represent reservoir mass, also called ‘carbon stocks’ in PgC (1 PgC = 1015 gC) and annual carbon exchange fluxes (in PgC yr–1). Black numbers and arrows indicate reservoir mass and exchange fluxes estimated for the time prior to the Industrial Era, about 1750 (see Section 6.1.1.1 for references). Fossil fuel reserves are from GEA (2006) and are consistent with numbers used by IPCC WGIII for future scenarios. The sediment storage is a sum of 150 PgC of the organic carbon in the mixed layer (Emerson and Hedges, 1988) and 1600 PgC of the deep-sea CaCO3 sediments available to neutralize fossil fuel CO2 (Archer et al., 1998). Red arrows and numbers indicate annual ‘anthropogenic’ fluxes averaged over the 2000–2009 time period. These fluxes are a perturbation of the carbon cycle during Industrial Era post 1750. These fluxes (red arrows) are: Fossil fuel and cement emissions of CO2 (Section 6.3.1), Net land use change (Section 6.3.2), and the Average atmospheric increase of CO2 in the atmosphere, also called ‘CO2 growth rate’ (Section 6.3). The uptake of anthropogenic CO2 by the ocean and by terrestrial ecosystems, often called ‘carbon sinks’ are the red arrows part of Net land flux and Net ocean flux. Red numbers in the reservoirs denote cumulative changes of anthropogenic carbon over the Industrial Period 1750–2011 (column 2 in Table 6.1). By convention, a positive cumulative change means that a reservoir has gained carbon since 1750. The cumulative change of anthropogenic carbon in the terrestrial reservoir is the sum of carbon cumulatively lost through land use change and carbon accumulated since 1750 in other ecosystems (Table 6.1). Note that the mass balance of the two ocean carbon stocks Surface ocean and Intermediate and deep ocean includes a yearly accumulation of anthropogenic carbon (not shown). Uncertainties are reported as 90% confidence intervals. Emission estimates and land and ocean sinks (in red) are from Table 6.1 in Section 6.3. The change of gross terrestrial fluxes (red arrows of Gross photosynthesis and Total respiration and fires) has been estimated from CMIP5 model results (Section 6.4). The change in air–sea exchange fluxes (red arrows of ocean atmosphere gas exchange) have been estimated from the difference in atmospheric partial pressure of CO2 since 1750 (Sarmiento and Gruber, 2006). Individual gross fluxes and their changes since the beginning of the Industrial Era have typical uncertainties of more than 20%, while their differences (Net land flux and Net ocean flux in the figure) are determined from independent measurements with a much higher accuracy (see Section 6.3). Therefore, to achieve an overall balance, the values of the more uncertain gross fluxes have been adjusted so that their difference matches the Net land flux and Net ocean flux estimates. Fluxes from volcanic eruptions, rock weathering (silicates and carbonates weathering reactions resulting into a small uptake of atmospheric CO2), export of carbon from soils to rivers, burial of carbon in freshwater lakes and reservoirs and transport of carbon by rivers to the ocean are all assumed to be pre-industrial fluxes, that is, unchanged during 1750–2011. Some recent studies (Section 6.3) indicate that this assumption is likely not verified, but global estimates of the Industrial Era perturbation of all these fluxes was not available from peer-reviewed literature. The atmospheric inventories have been calculated using a conversion factor of 2.12 PgC per ppm (Prather et al., 2012).

—————————-

This is likely one the most remarkable examples of scientific obfuscation in history. Every number used is a crude estimate. The commentary says we don’t know anything but are certain about human CO2 production in the Industrial Era. To my knowledge, there are no cohesive, comprehensive, measures of CO2 exchanges for most of the land surfaces covered by various forests, but especially the grasslands. The grasslands illustrate the problem, because, depending on the definition the extent varies from 15 to 40 percent. The important point is that we have little idea about volumes or how they change over time. A supposedly knowledgeable group, the American Chemical Society, provides confirmation of this point. Of course, we know how professional societies were co-opted to support the IPCC positions. In an article titled “Greenhouse Gas Sources and Sinks” they present a diagram from the IPCC (Figure 2).

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Figure 2

The text says from the American Chemical Society, who presumably knows about atmospheric chemistry says,

The sources of the gases given in these brief summaries are the most important ones, but there are other minor sources as well. The details of the sinks (reactions) that remove the gases from the atmosphere are not included. The graphic for each gas (or class of gas) is from Figure 1, FAQ 7.1, IPCC, Assessment Report Four (2007), Chapter 7. Human-caused sources are shown in orange and natural sources and sinks in teal. Units are in grams (g) or metric tons (tonne: international symbol t = 103 kg = 106 g). Multiples used in the figures are: Gt (gigatonne) = 109 t = 1015 g; Tg (teragram) = 1012 g = 106 t; and Gg (gigagram) = 109 g = 103 t.

 

As a professional group surely they should know about the lack of knowledge about gases in the atmosphere, yet they promote the IPCC illusions as fact. There are few caveats or warnings of the scientific limitations that even the IPCC include as in Box 2.1

Creating A Smooth CO2 Curve

 

A major flaw of the hockey stick involved connecting a tree ring record, the handle, with an instrumental temperature record, the blade. It was done because the tree ring record declined and that contradicted their hypothesis and political agenda. Ironically, a major challenge in climatology is to produce a continuous record from data gathered from different sources. H.H. Lamb spends the first part of his epic work, Climate, Present, Past and Future (1977) discussing the problems. He also provides a graph showing the length of possible climate time scales and the overlap problem (Figure 3). There are three areas, the instrumental or secular, the historic, and the biological and geologic.

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Figure 3

Data from different sources had to link to create the continuous smooth curve of CO2 from the pre-industrial levels through to the present. This involved three data sources, ice cores, 19th century instrumental readings and the Mauna Loa record. Figure 4 shows Ernst-Georg Beck’s reconstruction of the three sources. If you remove the 19th century data, it is another example of a ‘hockey stick’. The ice core data is the handle, from a single source, an Antarctic core. The blade is the Mauna Loa instrumental measure. As the 2001 IPCC Working Group I Report notes,

“The concentration of CO2 in the atmosphere has risen from close to 280 parts per million (ppm) in 1800, at first slowly and then progressively faster to a value of 367 ppm in 1999, echoing the increasing pace of global agricultural and industrial development. This is known from numerous, well-replicated measurements of the composition of air bubbles trapped in Antarctic ice. Atmospheric CO2 concentrations have been measured directly with high precision since 1957; these measurements agree with ice-core measurements, and show a continuation of the increasing trend up to the present.”

These measurements are not well replicated and have many serious limitations. Some of these include

1. It takes years for the bubble to be trapped in the ice. Which year does the final bubble represent?

2. As the ice gets thicker, it becomes impossible to determine the layers and, therefore, the relative dating sequence. Some say that at 2000 meters it requires 245 cm of ice to obtain a single sample, but under the compression and melding that represents one bubble for several thousand years.

3. Meltwater on the surface, which occurs every summer, moves down through the ice contaminating the bubbles. As Zbigniew Jaworowski said in his testimony to the US Senate,

“More than 20 physico-chemical processes, mostly related to the presence of liquid water, contribute to the alteration of the original chemical composition of the air inclusions in polar ice.”

 

4. A study by Christner (2002) titled “Detection, Recovery, Isolation and Characterization of Bacteria in Glacial Ice and Lake Vostok Accretion Ice.” Found bacteria were releasing gases at great depth even in 500,000-year old ice.

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Figure 4

A deconstruction of these portions of the crash reveals how it was achieved.

Professor Zbigniew Jaworowski was attacked viciously during the latter years of his life because of his views on climate change and ice core data. Like all who are attacked it is a sure indication they are exposing the deliberate deceptions of the global warming political agenda. Here are Jaworowski’s credentials that accompanied his presentation to the US Senate Committee on Commerce, Science, and Transportation.

“I am a Professor at the Central Laboratory for Radiological Protection (CLOR) in Warsaw, Poland, a governmental institution, involved in environmental studies. CLOR has a “Special Liaison” relationship with the US National Council on Radiological Protection and Measurements (NCRP). In the past, for about ten years, CLOR closely cooperated with the US  Environmental Protection Agency, in research on the influence of industry and nuclear explosions on pollution of the global environment and population. I published about 280 scientific papers, among them about 20 on climatic problems. I am the representative of Poland in the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), and in 1980 – 1982 I was the chairman of this Committee.

For the past 40 years I was involved in glacier studies, using snow and ice as a matrix for reconstruction of history of man-made pollution of the global atmosphere. A part of these studies was related to the climatic issues. Ice core records of CO2 have been widely used as a proof that, due to man’s activity the current atmospheric level of CO2 is about 25% higher than in the pre-industrial period. These records became the basic input parameters in the models of the global carbon cycle and a cornerstone of the man-made climatic warming hypothesis. These records do not represent the atmospheric reality, as I will try to demonstrate in my statement.”

There was nobody more qualified to comment on the ice core record and here is part of what he said to the Committee.

The basis of most of the IPCC conclusions on anthropogenic causes and on projections of climatic change is the assumption of low level of CO2 in the pre-industrial atmosphere. This assumption, based on glaciological studies, is false.”

Of equal importance Jaworowski states,

The notion of low pre-industrial CO2 atmospheric level, based on such poor knowledge, became a widely accepted Holy Grail of climate warming models. The modelers ignored the evidence from direct measurements of CO2 in atmospheric air indicating that in 19th century its average concentration was 335 ppmv[11] (Figure 2). In Figure 2 encircled values show a biased selection of data used to demonstrate that in 19th century atmosphere the CO2 level was 292 ppmv[12]. A study of stomatal frequency in fossil leaves from Holocene lake deposits in Denmark, showing that 9400 years ago CO2 atmospheric level was 333 ppmv, and 9600 years ago 348 ppmv, falsify the concept of stabilized and low CO2 air concentration until the advent of industrial revolution [13].

Figure 5 shows the stomatal evidence of CO2 levels compared with the ice core data that Jaworowski referencs.

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Figure 5

Apart from the higher overall average, notice the smoothness of the ice core curve partly achieved by a 70 year smoothing average, an action that removes large amounts of information, especially the variability, as the stomata record shows.

The other reference Jaworowski makes is to a graph (Figure 6) produced by British Steam Engineer and early supporter of AGW, Guy Stewart Callendar.

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Figure 6 (Trend lines added by the author.)

The dots represent the measures of atmospheric CO2 taken during the 19th century by scientists using rigid methods and well-documented instrumentation. The objective of the measures, started in 1812, was not related to climate. It was to determine the constituent gases of the atmosphere. It continued the work of Joseph Priestly who, though not the first to discover oxygen, was the first with published reports (1774). Figure 6 shows the samples that Callendar selected (cherry picked) to claim a low pre-industrial level. Equally important, he changed the slope from a decreasing to increasing trend. Figure 4 shows the same 19th century data plotted against the ice core and Mauna Loa curves.

Disclaimer: Ernst-Georg Beck sent me his preliminary work on the data, and we often communicated until his untimely death. I warned him about the attacks but know they exceeded anything he expected. They continue today, even though his work was meticulous as his friend, Edgar Gartner, explained in his obituary.

Due to his immense specialized knowledge and his methodical severity Ernst very promptly noticed numerous inconsistencies in the statements of the Intergovernmental Panel on Climate Change IPCC. (Translation from the German)

The problem with Beck’s work was it identified why Callendar dealt with the data as he did. In the climate community, the threat was identified and dealt with by a 1983 paper “The pre-industrial carbon dioxide level” published by Tom Wigley, then Director of the Climatic Research Unit (CRU). I recall the impact because I ran graduate level seminars at the time on the significance of the paper.

Criticisms of the 19th century records are summarized with one comment; they were random. Yes, in most studies randomly sampling is more desirable and representative of the reality than pre-selected, pre-determined sampling at specific points and specific levels as is currently done. That only works if you assume the gas is well mixed. One criticism is that Beck’s record shows high levels around 1942 compared to the Antarctic record. This is likely because CO2 is not well mixed, as the OCO2 and other records record indicate, but also that most of the records were taken in Europe during the war. Besides, with the 70-year period required to enclose the Antarctic gas bubble that record would only be showing up in 2012. The truth is there are no accurate measures of CO2 in 1942 other than the ones Beck used.

Another criticism says the locations, including the height at which measurements were taken varied considerably. Of course, that’s the point. They were not narrowed and manipulated like the current Mauna Loa and similar records, so they only provide measures at a few points that essentially eliminate all natural influences. It is obvious from the preliminary OCO2, the stomata, and Beck’s record that great variability from day to day and region-to-region is the norm. Further proof that this is the norm of this is that they tried to eliminate all this natural variability in the ice core record and at Mauna Loa. When outgoing longwave radiation leaves the surface, it passes through the entire atmosphere. The CO2 effect operates throughout, not just in certain narrowly chosen spots at certain altitudes like Mauna Loa measures. As Beck noted,

“Mauna Loa does not represent the typical atmospheric CO2 on different global locations but is typical only for this volcano at a maritime location in about 4000 m altitude at that latitude.

Charles Keeling established the Mauna Loa station with equipment he patented. As Beck wrote, the family owns the global monopoly of all CO2 measurements. Keeling is credited with being the first to alert the world about AGW. As Wikipedia’s undoubtedly vetted entry notes,

Charles David Keeling (April 20, 1928 – June 20, 2005) was an American scientist whose recording of carbon dioxide at the Mauna Loa Observatory first alerted the world to the possibility of anthropogenic contribution to the greenhouse effect and global warming.

Keeling’s son, a co-author of IPCC Reports continues to operate the facilities at Mauna Loa. The steady rise in the Keeling curve, as it is known, is troubling, especially considering the variability in the records not considered suitable for the IPCC story. How long will that trend continue? We know the global temperatures rose until the satellite data produced a record independent of the IPCC. There is no independent CO2 record, the Keeling’s have the monopoly and are the official record for the IPCC.

As Beck explained,

Modern greenhouse hypothesis is based on the work of G.S. Callendar and C.D. Keeling, following S. Arrhenius, as latterly popularized by the IPCC. Review of available literature raise the question if these authors have systematically discarded a large number of valid technical papers and older atmospheric CO2 determinations because they did not fit their hypothesis? Obviously they use only a few carefully selected values from the older literature, invariably choosing results that are consistent with the hypothesis of an induced rise of CO2 in air caused by the burning of fossil fuel.

Now they have the dilemma that the temperature has not increased for 19 + years but CO2, according to Mauna Loa, continues its steady rise. How long before we see a reported decline in the Mauna Loa record to bring the data in line with the political message? Fortunately, thanks to the work of people like Jaworowski and Beck, it is too late for them to mitigate the damage from the slow motion crash that is inevitably evolving? The hockey sticks of the entire team were broken in the crash.

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October 23, 2015 9:25 am

These are the balances I sought in earlier comments:
http://www.esrl.noaa.gov/research/themes/carbon/
IPCC AR5 Figure 6.1
Some thoughts about these two balances.
First of all they are in peta grams of carbon, PgC, NOT CO2. The IPCC diagram is much more detailed, but the amounts appear similar. Different data bases, maybe, or time frames.
The NOAA graphic distribution is tabulated thus:
Fluxes, PgC………………To Atmos…From Atmos…..Net Diff…….Share
Vegetation & Soils………119.0……….120.0……………-1.0………….55%
Land Use…………………..1.7……………1.9……………-0.2……………1%
Ocean……………………..88.0…………90.0……………-2.0…………..41%
Fossil Fuels………………..6.3……………………………..6.3…………….3%
Net of fluxes…………….215.0……….211.9……………3.1
Reservoirs, PgC……..Amount…….Share……..Net Flux
Atmosphere……………..700………….1.72%….0.004429
Ocean…………………..38,000……….93.37%
Vegetation & Soils……….2,000……….4.91%
Total…………………….40,700…………….………..0.000076
The net outgoing FF source is balanced by the incoming sinks at a ratio of about 50%. The FF outgoing is a paltry 3% of the total outgoing. Since all of these values are massive WAGs per IPCC AR5 table 6.1 with +/- 20% 45% 50%? certainty, the 3% of FF is meaningless, lost in the decimal points, rounding, and limited significant figures.
The ocean reservoir holds 93.37% of the carbon/CO2. Even trivial fluctuations in this storage eclipse all of mankind’s puny contributions.
End of line.

Reply to  Nicholas Schroeder
October 23, 2015 9:41 am

Nicholas,
The individual uncertainties are quite large, but the overall uncertainty is not the sum of the individual uncertainties, as the overall variation in natural sinks/sources balance is measured with an accuracy of +/- 0.5 GtC (+/- 0.25 ppmv).
The variations in total unbalance are +/- 1 ppmv around the trend which is around 2 ppmv/year, whatever the variability in the individual fluxes…

Knute
Reply to  Ferdinand Engelbeen
October 23, 2015 10:37 am

“Nicholas,
The individual uncertainties are quite large, but the overall uncertainty is not the sum of the individual uncertainties, as the overall variation in natural sinks/sources balance is measured with an accuracy of +/- 0.5 GtC (+/- 0.25 ppmv).”
FE
But FE, you’ve already stated that the “known” of what is known is great concerning sinks and sources. In essense, you are saying that despite the individual uncertainties being quite large, the variation in measuring those uncertainties is small.
Can you “hear” how that is difficult to swallow as something approaching a replicable fact, unless what u want to prove is that the overall degree of uncertainty is … well .. great ?

Reply to  Ferdinand Engelbeen
October 24, 2015 12:33 am

Knute,
The individual uncertainties still are large, but the uncertainty of the total sum of all natural inputs and outputs is small, because that is the difference between human emissions (with a small error in inventories) and the measured increase in the atmosphere (with a very small error in measurements). One doesn’t need to measure any individual flux to know the net result of all fluxes together…
Thus even if you have not the slightest knowledge of any individual natural sink or source, the total difference between all natural inputs and all natural outputs together is known with a small error…
That shows that the natural variability is surprisingly small, despite the huge ins and outs involved: +/- 1 ppmv around the trend in the past 57 years and always more sink than source, increasing a factor 4 over that period, together with human emissions and the increase in the atmosphere. See the graph here.

Knute
Reply to  Ferdinand Engelbeen
October 24, 2015 7:41 pm

FE
Thanks for the followthru FE.
“The individual uncertainties still are large, but the uncertainty of the total sum of all natural inputs and outputs is small, because that is the difference between human emissions (with a small error in inventories) and the measured increase in the atmosphere (with a very small error in measurements). One doesn’t need to measure any individual flux to know the net result of all fluxes together…”
I’m almost home. I’m not sure if I agree with the last statement, but I can understand that your greatest degree of certainty is with measuring ATMOSPHERIC CO2.
You acknowledge that understanding the amount of CO2 in plants, seabeds, soil, water metabolic life is confounded with tremendous uncertainty.
Because you can measure a change in CO2 in the atmosphere that is outside the normal bounds, you then ascribe that to man-made contribution. The assumption is that mankind’s activity did it because mankinds activity is the only thing that changed amongst the variables ?
Phewww, sorry I’m struggling with this.

Reply to  Ferdinand Engelbeen
October 24, 2015 12:38 am

Some analogy:
Someone with a shop starts the day with $ 1,000 in his/hers cash register.
During the day he/she has a lot of huge expenses and huge sales all day long.
At the end of the day, he/she counts $ 950 in the cash register.
Even without knowledge of any transaction, he/she will know that there was a $ 50 loss that day…

Reply to  Ferdinand Engelbeen
October 25, 2015 7:10 am

Knute:
Because you can measure a change in CO2 in the atmosphere that is outside the normal bounds, you then ascribe that to man-made contribution.
Not what I said… One does know human emissions with a reasonable accuracy and one can measure the increase in the atmosphere. There are several possibilities:
1. CO2 levels in the atmosphere are getting lower:
– Natural sinks are larger than natural + human sources
2. CO2 levels in the atmosphere stay the same:
– Natural sinks are equal to natural + human sources
3. CO2 levels in the atmosphere increase less than human emissions:
– Natural sinks are larger than natural sources but less than natural + human sources.
4. CO2 levels in the atmosphere increase equal to more than human emissions:
– natural sinks are equal to less than natural + human sources and any increase is the result of both sources.
In the past 57 years, we see situation 3 for every year, thus nature was more sink than source over the full period and the only cause of the increase is the human contribution…

Knute
Reply to  Ferdinand Engelbeen
October 25, 2015 10:33 am

FE
Thanks for the correction.
“in response to Ferdinand Engelbeen:
Nicholas, The individual uncertainties are quite large, but the overall uncertainty is not the sum of the individual uncertainties, as the overall variation in natural sinks/sources balance is measured with an accuracy of +/- 0.5 GtC (+/- 0.25 ppmv). The variations in total unbalance are +/- 1 ppmv around the trend which is around 2 […]
Knute:
Because you can measure a change in CO2 in the atmosphere that is outside the normal bounds, you then ascribe that to man-made contribution.
Not what I said… One does know human emissions with a reasonable accuracy and one can measure the increase in the atmosphere. There are several possibilities:
1. CO2 levels in the atmosphere are getting lower:
– Natural sinks are larger than natural + human sources
2. CO2 levels in the atmosphere stay the same:
– Natural sinks are equal to natural + human sources
3. CO2 levels in the atmosphere increase less than human emissions:
– Natural sinks are larger than natural sources but less than natural + human sources.
4. CO2 levels in the atmosphere increase equal to more than human emissions:
– natural sinks are equal to less than natural + human sources and any increase is the result of both sources.
In the past 57 years, we see situation 3 for every year, thus nature was more sink than source over the full period and the only cause of the increase is the human contribution…”
Are we really that confident in knowing man made CO2 vs natural sources ? It seems like such a mind boggling task to be able to tease out man’s contribution.
Can you please point me to the source that defends the above position ?

Reply to  Ferdinand Engelbeen
October 26, 2015 4:29 am

Knute,
I know, it seems very difficult for a lot of people to understand the difference between not knowing any of the individual fluxes and knowing the overall change…
We don’t know individual CO2 fluxes in and out the atmosphere (we know, but only roughly). We do know the overall budget: what remains in the atmosphere (and is accurately known) is our known emissions minus what is distributed in other reservoirs. As both our own one-way source and what remains in the atmosphere is known, the net difference is known too, without any knowledge of any individual natural CO2 flux in or out…
Let us try another analogy:
Each month you bring $ 100 to a local private bank to put on your savings account. At the end of the year you have $ 1,200 more on your account.
Each year, the private bank shows it yearly balance: for every year in the past 57 years they have made a meager $ 600 gain.
Even without any knowledge of any of the many thousands of transactions by other clients over the years, you know that bank is making a loss without your own money, so my advise would be to get away with your money and look for a more solid investment…
The same is true for the CO2 increase in the atmosphere: 9 GtC/year human emissions in, 4.5 GtC/year remaining in the atmosphere (as mass, not the original molecules), thus 4.5 GtC/year going into other reservoirs (oceans, vegetation). Nature is a net sink for CO2…
If all human emissions would cease at once, still next year there would be a net sink of 4.5 GtC, as that doesn’t depend of the emissions but of the extra CO2 pressure (~110 ppmv) above equilibrium with the oceans. That extra pressure decreases with the continuing sinks, so the sink rate decreases linear with the excess pressure, until the equilibrium with the oceans (~290 ppmv) is reached. That is an e-fold decay curve with a time constant of over 50 years or a half life time of ~40 years.

Reply to  Ferdinand Engelbeen
October 26, 2015 5:51 am

Knute,
Sorry posted that under the wrong comment:
Knute,
Here a link to a similar view:
http://pubs.acs.org/doi/abs/10.1021/ef200914u
My own view in detail:
http://www.ferdinand-engelbeen.be/klimaat/co2_origin.html

October 24, 2015 10:14 am

The fluxes and reservoirs on NOAA’s “CO2” balance (it’s really actually only carbon) are most curious. How someone decided how much carbon a given sector sources to the atmosphere and how much sinks back from the atmosphere is a mystery to me. WAGs I suspect, but I will use what is presented.
What caught my eye is that the greater the source the lesser the sink. So I converted to PgCO2/ppm and plotted the ratio of sink to source, an Excel trend line fit. A second order polynomial has an R square of 0.9999. I understand that means good things.
The notion that FF is a source with no sink is simply bogus. The atmosphere doesn’t know the difference, can’t discriminate between an ocean molecule or land use molecule or vegetation molecule or FF molecule. This goes back to the belief that the atmospheric CO2 is in some kind of equilibrium or grand balance and all FF does is imbalance that equilibrium. Nonsense.
So if FF sources 6.3 PgC/23.1 PgCO2/2.98 ppm into the atmosphere, per the curve fit the earth is going to sink 7.0 PgC/25.69 PgCO2/3.32 ppm of the FF back out of the atmosphere, same as the other three sectors
If the atmospheric CO2 concentration is increasing it is because everything is sourcing more or sinking less. The big dogs that really make a difference are the ocean and vegetation/soils, FF is a minor foot note.
http://www.esrl.noaa.gov/research/themes/carbon/
Fluxes, PgC……….To Atmos….From Atmos……..Net Diff
Land Use…………….1.7……………1.9…………….-0.2…..0.8%
Fossil Fuels…….……6.3……………7.0…………….-0.7……2.9%
Ocean……………….88.0……….…90.0…………….-2.0….40.9%
Vegetation/Soils…..119.0………….120.0…………….-1.0….55.3%
Total & Net………..215.0………….218.9…………….-3.9
Reservoirs, PgC…..….Amount……..Share
Atmosphere…………….700…………1.72%
Ocean………………….38,000……….93.37%
Vegetation/Soils……….. 2,000……..….4.91%
Total……………………40,700
Fluxes, PgCO2………Source ppm…sink ppm………sink/source
Land Use…………………..0.805………. 0.900…………….1.118
Fossil Fuels………………..2.984……….3.315…………….1.111
Ocean………………………41.680……..42.627…………….1.023
Vegetation/Soils……………56.362……..56.836…………….1.008
Total & Net…………….….101.830……103.678……………1.018
Only an egg (37 yr BSME, PE egg).

Reply to  Nicholas Schroeder
October 24, 2015 12:55 pm

Nicholas,
Some problems with your reasoning here:
This goes back to the belief that the atmospheric CO2 is in some kind of equilibrium or grand balance and all FF does is imbalance that equilibrium. Nonsense.
Never heard of Le Châteliers principle? A process in (dynamic) equilibrium that is disturbed by an external factor changes its equilibrium to counter the disturbance.
For the past 800,000 years, the oceans, biosphere and atmosphere were in dynamic equilibrium with as only driving force for changes the earth’s temperature. Mainly the ocean temperatures. For the current area weighted ocean surface temperature, the CO2 level in the atmosphere should be around 290 ppmv.
We are near 400 ppmv in only 165 years time, not seen in any ice core or proxy (foramins) over the past few million years. Ice core resolution of all ice cores are good enough to detect the current peak if that happened in the past 800,000 years, but it didn’t happen.
The processes that make that CO2 was rather equilibrated in ratio to temperature changes – with a lag – seems to be quite linear and quite slow. For the current increase above equilibrium (~110 ppmv), the sink rate is ~2.15 ppmv. That gives a half life time of slightly over 50 years: fast enough to follow the temperature changes over thousands of years, but not fast enough to coop with human emissions.
Fossil Fuels…….……6.3……………7.0…………….-0.7……2.9%
The crux of the matter is that your reasoning of equal influence of human CO2 for the sinks is only true if the sinks react extremely fast on the momentary emissions for any given year, but that is not the case. The sink rate only reacts on the total CO2 level in the atmosphere above equilibrium, not on yearly emissions.
The bulk of the exchanges is seasonal as result of the huge seasonal temperature changes. A much smaller exchange is the year-by-year variability in temperature and its effect on (tropical) vegetation. An increase in CO2 in the atmosphere hardly influences these processes: after 57 years and an increase of 70 ppmv, there is hardly any measurable increase in seasonal amplitude. But there is in the difference between inputs and outputs: that reacts quasi-linear on the increased pressure in the atmosphere…

Reply to  Ferdinand Engelbeen
October 26, 2015 8:50 am

FE,
“For the past 800,000 years, the oceans, biosphere and atmosphere were in dynamic equilibrium with as only driving force for changes the earth’s temperature.”
Gold Medalist in the Conclusion Jumping Olympics.
I think Knute has you nailed…

Reply to  Ferdinand Engelbeen
October 27, 2015 3:10 am

Michael,
Do you have any indication that temperature was not the main driver of CO2 levels in the past 800,000 years, except for the last 165 years?

Richard
October 26, 2015 10:22 am

Ferdinand says: “If vegetation was the main source, the δ13C level would go in the same direction as what human emissions do”.
That’s not true. It depends on how much the biological source was contributing to the atmospheric increase and what other positive δ13C sources were counteracting the negative δ13C source. It is possible that a negative and positive source could both be contributing to the increase at the time and at similar proportions too thereby keeping δ13C changes within relatively narrow bounds. These alternative possible causes have not been eliminated and therefore it is not possible to state as a scientific conclusion that the δ13C decrease is only the result of human CO2 emissions. Sorry, but such a causal linkage has not been scientifically established. I am not arguing that human causation of the atmospheric CO2 increase is not a fact. I am simply arguing that it being the only cause is not supported by any real evidence and that the purported evidence for it, e.g. the IPCC’s figures and formulae, does not really support it either when you do the maths. For example the IPCC’s figures in AR5 imply that there should be around 4% of anthropogenic CO2 in the atmosphere before absorption even though the δ13C measurements show there is little over 6% (thereby implying there other sources contributing).
Ferdinand says: “The residence time only shows how fast any CO2 molecule – whatever its origin – is exchanged with a CO2 molecule from another reservoir. That has zero effect on the total amount of CO2 in the atmosphere, as long as it is pure exchange”.
On the contrary, I do understand them. I have gone to great lengths in my post to make sure the reader understands the difference between ‘residence time’ and ‘adjustment time’. My refutation for the IPCC’s long adjustment time and why the increase in atmospheric CO2 is largely natural is the fast-equilibria of Henry’s law which is not a measure of residence time. I have shown, as too as Tom Segalstad, with different sets of calculations that this assertion of the Revelle Factor (and hence a long adjustment time) is refuted by the laws of physics. I have shown how your objections to them up to now have been misconceived and now you are objecting that they simply come to the wrong answers because those are not what you believe, i.e. that human causation of the atmospheric CO2 increase is a fact! But if it really was a fact, the applied laws of physics should confirm it, shouldn’t they? However, they do not.
Ferdinand says: “If the oceans were the main source, the δ13C would go up, not down”.
Not so. This has be explained to you before by others on this blog, i.e. that CO2 outgassing from the oceans could decrease δ13C if the source were biological and this is a very real possibility.
Ferdinand says: “Henry’s law indeed says what the ratio is between the atmosphere and dissolved CO2 as gas in the ocean surface. That would be all, if dissolved CO2 was the only species in water”.
The calculated 1:50 partitioning ratio (from NASA’s data) includes all forms of dissolved CO2. That is why I am saying that for every gigatonne of fresh CO2 we emit to the atmosphere each year, at least 98% of it will ultimately dissolve into the oceans and at most only the remaining 2% will stay in the atmosphere as a permanent addition to the resident greenhouse at *equilibrium*. Do you have an objection to that?
Ferdinand says: “http:Teaching-undergrad/es427/Exam%200405%20Revision/Ocean-chemistry.pdf”.
The reference that you say I should read is the same reference I have used in my post when calculating the Revelle Factor as PCO2 increases. I have read it and it’s nonsense for reasons explained in the post.
Ferdinand says: “I can go on with a lot of other points which are completely wrong”.
If you were to transpose yourself for me in that sentence you would be speaking truth. The problem Ferdinand, as Bart has pointed out, is your own refusal to accept reality as it is without turning it into something else in your mind that you can control and manipulate. Your mind is fixated on ‘humans did it’ as though you are caught in a hypnotic trance impervious to facts and reason alike.

October 27, 2015 4:19 am

Richard,
It depends on how much the biological source was contributing to the atmospheric increase and what other positive δ13C sources were counteracting the negative δ13C source.
OK, we see an increase in CO2 and a decrease in δ13C in the atmosphere. That may be (partly) caused by decaying or burning vegetation, but then there is a problem with the mass balance: there are two sources of low δ13C together at work, human emissions + net biosphere releases. Together more than human emissions alone.
The increase in the atmosphere is less than human emissions alone. That is only possible if the oceans do sink the net release of all biosphere emissions + about halve human emissions (as total mass, not the original partitioning). That only makes that the partitioning between biosphere (source) and oceans (sink) is different than thought and humans still are fully responsible for the increase, as that is one-way addition.
Sorry, but such a causal linkage has not been scientifically established.
Ice cores show very small changes in δ13C over glacial – interglacial changes of 100 ppmv, which shows that the CO2 changes were mainly from the oceans. Over the Holocene, the average changes again were only +/- 0.2 per mil δ13C in the atmosphere until ~1850, confirmed by similar small variability in the sea surface over the past 600 years (with a resolution of 2-4 years) in coralline sponges. Since 1850, δ13C levels dropped with about 1.8 per mil in exact ratio to human emissions. A similar drop caused by vegetation would need to burn down 1/3rd of all land vegetation on earth… Oceans only drive the δ13C slightly up, thus can’t be the cause either. Moreover, since 1990, the biosphere is a proven net sink for CO2…
Thus the cause of the δ13C is the human contribution, as scientifically certain as can be.
I have shown, as too as Tom Segalstad, with different sets of calculations that this assertion of the Revelle Factor (and hence a long adjustment time) is refuted by the laws of physics.
Richard, you haven’t shown anything like that, neither has Segalstad (with whom I had a lively discussion). Segalstad uses the residence time which has zero influence on the adjustment time.
You do not understand the implications of ocean chemistry: Henry’s law is obeyed both for fresh water as for seawater: a 100% increase in CO2 in the atmosphere gives a 100% increase in free CO2 in solution.
In fresh water, free CO2 is 99% of all carbon species, thus a 100% increase in the atmosphere gives an about 99% increase in total carbon forms (CO2 + bicarbonate + carbonate).
In seawater free CO2 is only 1% of all carbon species, thus a CO2 doubling in the atmosphere per Henry’s law initially only gives a 1% increase in total carbon species. That is all. It is only because there are equilibrium reactions at work, that the other species also increase, which leads to a 10% increase (NOT 100%) of all inorganic carbon forms for a 100% increase in the atmosphere. That is the Revelle/buffer factor.
That the Revelle factor is true is easily proven: look at the increase in the atmosphere and at the time series in Bermuda for the increase in DIC (dissolved inorganic carbon) of the ocean surface: DIC increased at about 10% of the increase in the atmosphere over the same time span:
http://www.biogeosciences.net/9/2509/2012/bg-9-2509-2012.pdf Fig. 5
CO2 outgassing from the oceans could decrease δ13C if the source were biological and this is a very real possibility.
Sorry, impossible. CO2 releases from the oceans are mainly dissolved CO2, where the biological pump at the surface increases the δ13C of the surface waters (1-5 per mil) compared to deep ocean waters (around zero per mil). Direct releases of organics from the sea surface is peanuts compared to inorganic CO2. Moreover, the continuous CO2 flux from ocean upwelling to ocean sinks of ~40 GtC/year dilutes the δ13C “fingerprint” of the human contribution, thus certainly is positive compared to the atmosphere.
at least 98% of it will ultimately dissolve into the oceans and at most only the remaining 2% will stay in the atmosphere as a permanent addition to the resident greenhouse at *equilibrium*.
No problem with that, but the emphasizes is on the word “ultimately”: that will need time, as that must get into the deep oceans mass (the surface is only 1:0.8 of the atmosphere and readily saturated at 10% of the change). The adjustment time for an excess CO2 level decay is over 50 years, or a half life of ~40 years…
The problem Ferdinand, as Bart has pointed out, is your own refusal to accept reality
Richard, Bart and (frequency) theory is way over my head, Bart and reality is a different matter.
It takes a long time before I do accept any theory, from whichever side, as I like to see all evidence pro and con, before making up my mind. I have studied about everything about the carbon cycle before concluding that all observations show that human emissions are the cause of the CO2 increase in the atmosphere. All alternative explanations violate one or more observations, Bart’s solution even violates all observations, including Henry’s law.
What always wonders me is that many skeptics don’t accept that humans are the cause of the CO2 increase, while nature was a continuous net sink in the past 57 years, only because that is an essential part of the AGW theory, while most housewives with a household budget know that if they spend more money that they receive, they will get into trouble…