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All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.

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Comments 21851 to 21900:

  1. From the eMail Bag: CO2 in the air and oceans

    Jeffrey,

     Yes decaying organic matter yields CO2 (and/or CH4 in anaerobic conditions). This is well described by the Roth C mathematical model used by most climate scientists. Only a tiny % of that carbon actually gets sequestered long term in the soil. The rest eventually returns to the atmosphere. I want to emphasize that this model is well developed and I have no problem with it at all in describing the fate of carbon that follows this biological pathway.

    Where the difference lies is that it does not describe the newly discovered Liquid Carbon biological Pathway at all. This carbon is not easily decayed. Once that carbon reaches the humic polymer stage, it tightly bonds to the soil mineral substrate and becomes an intrinsic part of the soil matrix. But not only that, it actually stabilizes the soil too.

    Remember, these two pathways are fundamentally different. Catabolic pathways like described by the Roth C model break down molecules and produce energy. Anabolic pathways like the LCP synthesize molecules and require energy. That's the primary reason for reducing or eliminating herbicides and other biocides. The energy comes from increased photosynthesis and through the LCP (anabolic pathway) stable soil structure is built. Entirely the opposite of the decay of organic material on the surface. Keep in mind, this is so completely the opposite of what was thought prior to the discovery of Glomalin in 1996, that most soil science textbooks still claim that mollic epipedons are primarily formed by decaying dead roots. And they had no explanation at all why this should happen under grasslands rather than forests which contain more biomass. Keep in mind all this is still contentious. Even this paper published as recently as 2011 and stating the current models are flawed, still describes as "unknown" the reason why. I can't stress enough how exciting this new breakthrough is for both agriculture and climate science.

    Now you make a good point questioning the time it can remain sequestered. Once those humic polymers tightly bind to the soil forming a mollic epipedon, this will last into geological time frames unless disturbed. However, we certainly know how to release it if needed. ;)

  2. Jeffrey Middlebrook at 14:45 PM on 14 December 2016
    From the eMail Bag: CO2 in the air and oceans

    Thanks RedBaron. I love your descriptions of what you're doing. This soil sequestration is something I've wondered about for a long time. What I still wonder about is the eventual surrender of sequestered CO2 back to the atmosphere. Decaying organic matter yields CO2, right? I even have the same concerns for my sequestration technology. My technology captures 95%+ of all gases of combustion but somewhere down the road through various natural processes I'm sure the sequestered CO2 will find its way back into the environment in one form or another. By the way, in my post #34 above I actually know how to spell "inputs". That's a dumb typo.

  3. One Planet Only Forever at 14:45 PM on 14 December 2016
    2016 SkS Weekly Climate Change & Global Warming Digest #50

    RedBaron@2

    The statement is my statement, inspired by the comments made by the interviewer, Jim Brown, as well as Patrick Stokes.

  4. On climate change, angels and demons are battling over Trump’s soul

    nigelj,

    Again, not the animals at fault. It is the degradation of the soils and their capability to biotically oxidize that methane. That's why eliminating to extinction every single cow on the planet still won't work. Because the soil methantrophic oxidation would even get worse! Net is still not negative. But change the agricultural model and the cows change from a problem to a solution.

    “The number one public enemy is the cow. But the number one tool that can save mankind is the cow. We need every cow we can get back out on the range. It is almost criminal to have them in feedlots which are inhumane, antisocial, and environmentally and economically unsound.” Allan Savory

    Remember, this is a stocks and flow problem like any other in climate science. It is never the gross that matters, but rather the net fluxes that matter. You are making the same fail in the same way as this denialist argument: Breathing contributes to CO2 emissions

    Whether it is Methane emissions or Carbon dioxide emissions from living animals, never counts unless you tie it to the opposite side of the active biological cycle and can measure net positive flux. The whole methane emissions argument from farting and burping cows is just as ridiculous as the breathing argument, except instead of plants being on the opposite side of the biological cycle, it is methanotrophs on the opposite side of the biological cycle.

  5. Breathing contributes to CO2 buildup

    Art Vandelay @72, nearly all, if not all sea food eaten by humans are situated in a food chain with photosynthesis at the base.  Ergo, while the exchange of CO2 for oxygen that drives the process may not take place in the atmosphere, it still occurs.  As pCO2 equilibriates between the atmosphere and surface waters in less than a year, that means most of the marine food eaten by humans has no significant effect.

    I am not aware of any human from non-organic sources, or from archaea, so if you want to claim that "food is derived from a source of photosynthesized CO2" is an appreciable source of human food, you will need to provide references.

    The difference in biomass between humans and plants is accounted for in the Land Use Change (LUC) budget in the global CO2 budget.  It is smaller than you think because the biomass of large herbivores (ie, cattle) has massively increased over the last 160 years.  Identifying just a single component in the changed system and comparing it with the total biomass of the preceding system is misleading, though no doubt unintentionally. 

  6. On climate change, angels and demons are battling over Trump’s soul

    Red Baron @11, thanks and I had a read of your link. Basically you do acknowledge livestock emit methane, but appear to claim different farming techniques can solve the methane problem by less indoor livestock farming, etc, and better soils management.

    Well I respect your view and maybe you are right, but changing farming techniques exactly like you suggest will be challenging thing in so many ways in terms of persuading farmers, legislating, etc. It would take forever. The general maistream view is changing feedstock has the most practical promise.

    I was suggesting to the other poster its futile to blame animals or expect that much change will happen there, and we should concentrate on reducing fossil fuels as the first priority. Im not saying give up on the animal methane issue, but its a particularly tough one obviously.

  7. On climate change, angels and demons are battling over Trump’s soul

    The following article is worth a read and is quite chilling:

    www.nzherald.co.nz/opinion/news/article.cfm?c_id=466&objectid=11766755

    Its by Eric Holthaus writing in the Washington Post, reprinted in my local newspaper. He is a meteorologist and journalist concerned that the Trump administration may delete public / government data bases of climate data. He has taken extaordinary steps to archive this material and so have others. He cites examples where other governments have removed data.

    His concern is Trump may want to make as difficult as possible to access information so as to stop further understanding of the climate, and to reinforce the interests of the fossil fuels industry.

  8. Breathing contributes to CO2 buildup

    One thing to consider in the argument that the biosphere is still in balance with 7 billion humans is that 20% of food consuption is from the oceans, not land. In other words, 20% of the 3Gt CO2 exhaled by humans was not part of the normal terrestrial cycle. It's also true that not all food is derived from a source of photosynthesized CO2. 

    Also, to what extent is balance achieved by the burning of fossil fuels - which increases photosynthesis as a feedback response?

    If the existing balance is only made possible by virtue of 400ppm CO2 in the atmosphere, the current population is obviously not sustainable in the long term.   

    Based purely on the amount of CO2 exhaled by humans it should be possible to calculate a population level that's sustainable with a photosynthesis rate commensurate with around 280 ppm atmospheric concentration.  Based on flux apprximations from the IPCC it would appear that we're already beyond a sustainable population maximum. 

    One last point is that 7 billion humans doesn't actually sequester much in the way of C when compared with plants. There's approx 25kg of carbon per human, so <0.2Gt for the entire population.   

  9. On climate change, angels and demons are battling over Trump’s soul

    nigelj,

    As I have pointed out many times, the agricultural component to rising methane has nothing to do with methane emissions from livestock anymore than breathing out CO2 counts towards greenhouse gas emissions. 

    There is an agricultural component, but that component is not the livestocks' fault and veganism will not fix it. I have spelled it out with good references here

  10. From the eMail Bag: CO2 in the air and oceans

    Jeffrey,

    Yes I got that was the feedback you were refering to. No I can't comment on it as I am not a climate scientist. Like you I amd working on mitigation through sequestration, in my case agricultural soils. I have taken a climate science course at university level in order to better understand and communicate with climate scientists and better communicate climate science to laymen. But that does not make me one myself. Just a research farmer concerned as all farmers are about climatic conditions and their impacts.

  11. Jeffrey Middlebrook at 09:31 AM on 14 December 2016
    From the eMail Bag: CO2 in the air and oceans

    Wow, I'm impressed with the responses and tangentially inspired responses to my initial inquiry. I don't know if any of you who've posted your learned responses are actually "climate scientists", so if any of you are I'd love to have you say so. I'm just a humble engineer and inventor of a sequestration technology, but one of my friends is a maverick climate scientist from the UK who is not a global warming denier (only a fool would be so), but he is an AGW skeptic. I invited him to create an account with this group but I don't know if he has. His imputs would liven the discussions for sure. I think perhaps I might not have made myself fully clear in my initial inquiry to this group. I did not mean to imply that there isn't an evaporative transfer of heat upwards as precipitation enters the oceans. It wasn't heat per se I was asking about, rather the capture of CO2 in precipitation, and whether or not greater precipitation brought on by atmopsheric warming would capture more CO2 to then be transferred to the oceans. Was this clear to anyone else?

  12. On climate change, angels and demons are battling over Trump’s soul

    Ivanka Trump appears to be the brains of the Trump family. I have to take her at face value that she is sincere in her concerns about the climate.

    However Trump has already appoined several hard line climate denialist people. Trump has shown flexibility of views on some things, but his actions indicate he is serious about his denialist views on climate change.

    Of course he may soften his position, or listen to Ivanka, but he will then be at war with the very people he has appointed. They will be unlikely to simply soften their views if Trump softens his. He is unlikely to fire them.

    The whole thing looks like a gigantic mess in the making to me.

  13. On climate change, angels and demons are battling over Trump’s soul

    Swampfoxh @6

    I'm not sure where you get the figure that animal agriculture is responsible for 51% of emissions or exactly what that includes. However I agree it is certainly an issue.

    Basically animals and humans exhale CO2 but this is part of a cycle and isnt responsible for increases in atmospheric CO2 concentrations. Its easy enough to google this issue.

    Livestock exhale methane and increasing livestock has led to increasing methane. This is more of a problem. This methane breaks down to CO2 in the atmosphere eventually but causes a high level of warming in the short term. However there are no easy solutions, although research is being conducted on feedstocks that reduce methane emissions and does show some promise, but no actual solution yet.

    The other approach is vegetarianism, which does have some appeal, but we simply cannot force this on people by law.

    So the priority and something we can change right now is fossil fuels.

  14. There's no correlation between CO2 and temperature

    rkrolph @151, you probably have picked this up, but it is important to the budget that it contains three layers, the TOA, atmosphere, and Surface.  In order, the budgets are (with all values in units of W/m^2):

    TOA:  340.4 Solar in - (77.0 Solar reflected from clouds and atmosphere + 22.9 Solar reflected from the surface + 239.9 IR out) =  0.6

    Atmosphere: (77.1 Solar absorbed by atmosphere + 358.2 Surface IR absorbed by atmosphere + 18.4 thermals + 86.4 latent heat) - ( 169.9 upward IR from atmosphere + 29.9 IR upward IR from clouds + 340.3 back radiation) = 0

    Surface: (163.3 solar absorbed at surface + 340.3 back radiation from atmosphere) - (398.2 IR emitted from surface + 18.4 thermals + 86.4 latent heat) = 0.6

    In addition, it is very important that the energy imbalance (right hand term in the equations) in the atmosphere plus the energy imbalance at the surface equals the energy imbalance at the TOA.  If it did not, we would have a violation of conservation of energy.  As a side note, it is also important that solar energy in equal solar energy reflected plus solar energy absorbed.

    Some AGW deniers look at this diagram and say some element should be completely excluded as non-existent - most typically the back radiation.  In doing so they merely show they do not consider conservation of energy to apply in climatology.  You cannot remove a major element without creating an unaccounted for imbalance.

    john warner has made such a suggestion (in his deleted coment @146) that:

    "The total air at all altitudes combined radiates to space at the rate of 199.8 W/m2. That is the only energy that needs to be replaced to maintain all of the temperatures of the temperature gradient"

    Again, that fails the conservation of energy test.  The total energy that needs to be replaced in the atmosphere is the combination of IR radiation to space from atmosphere and clouds (199.8) and the total value of the back radiation (340.3), but as the budget shows, that is indeed what is replaced.

    Finally, it should be noted that many values in the graph are determined by a combination of observations plus the knowledge that they balance.  Thus, due to calibration errors of absolute values, space born instruments show an imbalance of 1 - 2 W/m^2 between incoming and outgoing energy.  The far more accurate observations of changes in ocean heat content are known to effectively identical with the actual TOA imbalance (within error), and are used with the knowledge that total surface plus atmosphere absorbed must equal the TOA imbalance to calibrate the actual TOA imbalance.  Thus the precise concordance of the values is not evidence of anything but the researchers knowledge that the budget must not violate conservation of energy.  The values are, however, sufficiently well constrained from observation that the removal of an entire form or energy transfer would violate not only conservation of energy but known observations.

  15. On climate change, angels and demons are battling over Trump’s soul

    Swampfoxh: Jackson had some shortcomings but he expanded the nation and did a prety good job, that's how he got his gig on the $20 Bill. My sense is that Trump is more like Grant, with a supremely corrupt administration resultnig from political incompetance and alcohol. Let's hope Trump can listen to his daughter and see the huge loss the US will take if we force advantage in the green revolution to China. Personally, I am willing to work with China to develop my technology, it's for the good of my kid's and grand kid's world, not for my national pride. I think a lot of people feel the same way, especially if they are not Americans.

  16. There's no correlation between CO2 and temperature

    152 HK:

    Thanks for clarifying that.  I missed the 77.1 solar absorption number. I think then I would have figured out how the numbers work.  That's my excuse anyway! :)

  17. Climate Science Legal Defense Fund at AGU and how you can help

    Slightly off topic but I ran into this article about scientists archiving everything related to AGW in anticipation of Trump's administration deleting government data sets.

    https://www.washingtonpost.com/news/energy-environment/wp/2016/12/13/scientists-are-frantically-copying-u-s-climate-data-fearing-it-might-vanish-under-trump/?utm_term=.2db84db1fd76

  18. There's no correlation between CO2 and temperature

    151 rkrolph:

    You have to include all the energy fluxes into and out of the atmosphere!

    The energy input includes absorbed incoming solar radiation (77.1), absorbed radiation from the surface (358.2), thermals (18.4) and latent heat in water vapour (86.4), totalling 540.1.
    The energy loss includes back radiation to the surface (340.3) and radiation to space (169.9 + 29.9), again totalling 540.1.

    The atmospheric window (40.1) represents radiation that passes directly from the surface to space without being absorbed by GHGs or clouds, and should not be counted here.

  19. On climate change, angels and demons are battling over Trump’s soul

    So much for the efficacy of the universal right to vote.  Hillary only had a miniscule more votes than Donald.  Had the electorate been "informed" about the universal perils of anthropogenic climate change they might have picked the Green candidate instead...she was the only candidate that knows the problem well enough to do something meaningful about it.  Since the electorate remains ignorant 187 years after they voted for Andrew (trump) Jackson, why would any of us believe that a few more votes might have canned Trump?  (Hillary wasn't qualified either).  So let's forget the whining over whose going to manipulate the levers of power and work to educate the public about the facts of climate change.  We could do a better job educating ourselves by acknowledging that Animal Agriculture is directly and indirectly responsible for about 51% of global emissions, along with desertification, deforestation, water shortages, ocean dead zones and famine, but I never hear any of you talking about that.  Why? 

  20. On climate change, angels and demons are battling over Trump’s soul

    Tell Trump to forget climate change.  Instead, point out how much money he is sending overseas to buy oil which could be better used for his infrastructure programs.  No need for government handouts.  Simply sort out the government settings so that the America people and her industries find it worth while to install wind and solar generation.  Every 5 kWh generated, especially if the settings also favor construction of a truly affordable electric car, is a dollar that doesn't go out of America: a dollar that can be used internally.  Also point out to him how many jobs are create installing wind and solar and building electric cars compared to the few provided by the largely mechanized coal mining.  No need to bash coal.  Economics will take care of that.  Simply stop wasting money subsidizen coal.  This money can also be diverted into Trump's works programs.

  21. There's no correlation between CO2 and temperature

    Regarding the energy budget shown by Tom Curtis at 140 I have a question.  The IR radiation from the earth is 398.2, and the back radiation is 340.3, for a delta of 57.9 into the atmosphere.  But the total outgoing IR radiation from the atmosphere is 239.9.  So where does the additonal 182 (239.9-57.9) come from?

  22. On climate change, angels and demons are battling over Trump’s soul

    We're all doomed. In more ways than one.

  23. BILLHURLEY13951 at 01:50 AM on 14 December 2016
    On climate change, angels and demons are battling over Trump’s soul

    I really think our side doesn't appreciate the importance of 'paradigm' in human understanding.

    What appears ignorance, often is just the polite reaction of someone who doesn't get the big picture and you're telling him/her the details without explaining the big picture first. The big picture is simple - 7 billion people now with most of them using 35 times the natural resources unsustainably.

    IE Evil people are not the cause. That turns heads among "trumpistas"

  24. On climate change, angels and demons are battling over Trump’s soul

    Don't get played by Trump. He is the current (!) producer of a reality TV show and he has been running his transition like The Apprentice. The NY Times editorial staff made a big deal out of his 'I have an open mind' comments, but read the actual transcript of the Times interview. He would make a ridiculous climate denier comment, then finish with 'but I have an open mind'. He used Al Gore to distract attention from his cabinet picks, and probably DiCaprio, except DiCaprio did manage to emphasize the jobs potential of clean energy. Trump's cabinet nominations and the DOE questionnaire trying uncover 'climate moles' in the DOE say everything. We grasp at Trump's gratuitous comments in hopes that it isn't as bad as it seems, but it is. Elections have consequences and far too many Americans did not bother to vote.  Trump lost the popular vote and was elected by about a quarter of the eligible voters. Over the next 4-8 years we will be conducting a grand climate experiment, 'the will of the people'. 'Belief in climate change is optional, but participation is mandatory' (Jim Beever, SWF Regional Planning Council).

  25. There's no correlation between CO2 and temperature

    john warner @150, are you explicitly stating that your snipped post @146 answers my question at the end of my post @149.  In other words, you are explicitly stating that (in my words), "There is an external source of energy which provides the energy allowing the atmosphere to radiate at 199.8 W/m^2 at approximately 6 Km altitude, but the additional emission at the surface is the result of a continuous energy supply to the atmosphere by gravity".

    Is that correct?

  26. There's no correlation between CO2 and temperature

    john warner, given your tendency to ignore rebutals, and just switch topics, the moderators have directed you to stick to the topic @142 until you have acknowledged your errors therein, or proved your views on that topic to be correct. (See Moderator's comment @146, and @147.  Particularly the statement that:

    "I propose John first address the pressure and temperature violation of thermodynamics. Any comments outside of that will be struck until John addresses this one."

    )

    In light of that, you claim @142 that the ideal gas law states:

    P = CDT          (1)

    where P is pressure, C is a constant, D is density, and T is temperature.

    The ideal gas law is normaly given as:

    PV = nRT        (2)

    where P is pressure, V is volume, n is the number of molecules of the substance (in moles), R is the gas constant, and T is the temperature.

    Rearranging (2), we get

    P = (Rn/V)T    (3)

    If we then multiply n/V by the molar mass of the substance (M(s)), relying on the fact that M(s) * n equals the mass of the substance, we then get

    P = R/M(s) * DT  (4)

    Substituting with one, we then find that so long as C = R/M(s), your formula is correct.  R = 8.3144598 J/(K mol).  The molar mass of dry air is 0.02897 Kg / mol.  Ergo, in the case of dry air, C= 287.0024 J /(Kg K)

    Inserting, that and checking units, we find that the right hand of the equation has units of Joules/meter^3, which reduces to units of (kg x m^2)/(m^3 x sec^2).  That cancels to units of kg/(m x sec^2)  In the meantime, the left hand has units of pascals, or kgs/(m x sec^2).  The two are identical, thereby validating the equation.

    Comparing to your exposition @142, I first notice a slight difference in the value of C (about 2%), which is possibly due to rounding errors in the calculation.  I also notice @148 that you use correct units for C.  It follows that your presentation of the ideal gas law, although ideosyncratic, is valid.

    You proceed by saying:

    "How much did the Gravity induced increase in Temperature increase the the radiation emitted by the surface temperature? 154.8wpsm. 199.8wpsm +158.4wpsm=358.2wpsm."

    That is ambiguous to me.  Are you saying that:

    1)  Gravity induces a temperture difference in the atmosphere between an altitude of approximately 6 kms and the surface, such that additional energy must be supplied from some other source (ie, not from gravity) to maintain that equilibrium temperature difference (and hence difference in emmitted radiation); or

    2)  There is an external source of energy which provides the energy allowing the atmosphere to radiate at 199.8 W/m^2 at approximately 6 Km altitude, but the additional emission at the surface is the result of a continuous energy supply to the atmosphere by gravity?

    (1) is, of course, the standard theory of the greenhouse effect; while (2) is arrant nonsense.

    (PS inline @147, I looked carefully at the post suggested, and Postma's article and I cannot find where he is suggesting the theory such as john warner appears to be expounding above.  While we have encountered that theory several times on SkS, it has always to my knowledge, been in comments and lacks a specific article debunking it.  Hence, for want of a better location I am continuing to discuss it here.) 

  27. There's no correlation between CO2 and temperature

    Michael sweet @ 147

    101325 Nm-2 = 287.052 Nm-2m3/kgoK * 1.25203 kgm-3 * 281.930oK

                                         Nm/kgoK

                                         J/kgoK

    If you know that a pascal is defined as a Newton per square meter and simplify the expression to a Newton meter which is a Joule you can see that the individual gas constant for air in Standard International Units is 286.9 J/kgoK.

    http://www.engineeringtoolbox.com/individual-universal-gas-constant-d_588.html

    Would you repost my snipped comment so I can defend it.

    Moderator Response:

    [RH] Please respond to Tom's comments below. This needs to be acknowledged and resolved before moving forward.

  28. 2016 SkS Weekly Climate Change & Global Warming Digest #50

    FYI - I've noticed your social media share tab has not been working correctly the last couple of days. It' s not linking the article of interest or providing a shortcut to the more popular social media options (such as Facebook or Twitter for example). 

  29. On climate change, angels and demons are battling over Trump’s soul

    Supplementing the information contained in Dana's article...

    The heads of Donald Trump’s transition teams for Nasa, the Environmental Protection Agency, the Department of the Interior and the Department of Energy, as well as his nominees to lead the EPA and the Department of the Interior, all question the science of human-caused climate change, in a signal of the president-elect’s determination to embark upon an aggressively pro-fossil fuels agenda.

    Trump has assembled a transition team in which at least nine senior members deny basic scientific understanding that the planet is warming due to the burning of carbon and other human activity. These include the transition heads of all the key agencies responsible for either monitoring or dealing with climate change. None of these transition heads have any background in climate science.

    Trump's transition: sceptics guide every agency dealing with climate change by Oliver Milman, Guardian, Dec 12, 2016

  30. There's no correlation between CO2 and temperature

    John Warner,

    At 142 you claim that according to the ideal gas equation P = CDT where C is the ideal gas constant (normally abbreviated as R), D is density and T is temperature.  If that were the case, since all gases have different densities, all gases would have different pressures at the same temperature and volume.   All my High School students learn that at the same temperature and volume different gasses have the same pressure.  Your equation is falsified by my college textbook (Brown and LeMay: Chemistry the Central Science 11th edition page 407).

    I cannot find your value of 287.052 Pam3/kgoK for R anywhere on the Internet.  It appears that you made this up.  What are these units anyway?

    As MA Rodger explained, while pressure and temperature are related, you cannot draw power with gravity as the source.  That violates the First Law of Thermodynamics.

    Your "calculation" using Boltzamn's law (struck by the moderator) was similarly in error.

    Since you have demonstrated that you cannot calculate values from first principles, you must start to reference your material to accepted sources.  You need to start asking questions about how the atmosphere works.  People here are happy to help you understand.  Everything you explain just makes others doubt you more.

    Moderator Response:

    [RH] Though it's dubious to believe it would be fruitful, perhaps it would be good to take John's errors one at a time. The list is large and growing, thus the potential for advancing the conversation is diminishing.

    I propose John first address the pressure and temperature violation of thermodynamics. Any comments outside of that will be struck until John addresses this one.

    [PS] John has bad habit of simply ignoring inconvenient response and then changing to a different tack. He not responded to errors pointed about source of CO2, meaning of correlation, calculation errors and now a monumental misunderstanding of thermodynamics. Furthermore he is repeatedly ignoring moderator instructions to find suitable thread.

    I agree that John should respond here to either acknowledge the errors or defend his position and any other response should be deleted. This vaguely resembles Postma's nonsense so perhaps further followup beyond this should go to here.

  31. There's no correlation between CO2 and temperature

    From the Stefan-Boltzmann Law if we know the temperature we can calculated the rate at which the air is cooling itself. The total air at all altitudes combined radiates to space at the rate of 199.8 W/m2. That is the only energy that needs to be replaced to maintain all of the temperatures of the temperature gradient. 

    [snip]

    Moderator Response:

    [RH] John, before you go any further here, you're going to have to directly and clearly address the shortcomings that have been pointed out so far.

  32. There's no correlation between CO2 and temperature

    john warner @142, if you look at the diagram @140, you will notice that the 169.9 W/m^2 from atmosphere, and the 29.9 W/m^2 from clouds are labels for arrows leading upwards.  That is, they are the upward IR flux from the atmosphere at the Top Of the Atmosphere (TOA).  While it is true that the IR flux from a layer of the atmosphere sufficiently thin so as to absorb essentially none or the IR photons emitted from the layer is equal in both the upward and downward direction, that is not true of the atmosphere as a whole.  It follows that upward IR flux at the TOA from atmospheric emission does not inform us regarding the downward IR flux from atmospheric emission at the surface.  Ditto for clouds.  Reading the chart as it it does is nonsense.

    That is most easilly seen with clouds.  Clouds are essentially opaque to IR radiation except for all but the thinest clouds.  Thus, for a cloud of thickness T (units of meters), the upward emission comes almost exclusively from the cloud top, while the downward emission comes almost exclusively from the cloud bottom.  Because of the lapse rate in atmospheric temperatures, that means the downward transmission will have a brightness temperature approximately T x 0.0065 K greater than the upward emission from the cloud top.  As the upward arrow in the diagram is radiation to space, if there is high cloud overlying low cloud the difference in brigtness temperature of the upward emission will be a function of the altitude difference between the cloud top of the upper cloud and the cloud bottom of the lower cloud, multiplied by the lapse rate.

    Atmosperic emission is not quite so clear cut, but in general, the thicker lower atmosphere results in a shorter free path length for downward emission than for upward emission.  That means IR radiation emitted from the atmosphere and reaching the surface comes from much closer to the ground than IR radiation emitted from the atmosphere and reaching space.  Dragging numbers at random from a diagram while ignoring context (such as the arrows) does not change this.  Invoking an unphysical theory to "explain" a discrepancy that only exists because you have completely, and bizarrely, misread the graph does not change it either.  

  33. There's no correlation between CO2 and temperature

    Correction: john warner @ 142

    101325 Pa = 287.052 Pam3/kgoK * 1.25203 kg/m3 * 281.93oK.

  34. There's no correlation between CO2 and temperature

    john warner @142.

    There are monumental flaws in the argument you present but I will confine myself to just the one monumental flaw. It is true that there is a phenomenon known as Gravitational Compression. The act of compressing a gas does heat the gas (as anybody who has pumped up a bicycle type by hand would have noted). But when the compression stops so does the warming and the elevated temperatures experience cooling (as my bicycle pump plainly shows). So what compression is happening in the Earth's atmosphere? There is none. The Earth's atmosphere has not been compressing for eons.

    With deference to the Moderator Response @142, I will not suggest that you are delusional in you belief that you have mastered the understanding required to allow a person to wield the equations that you employ. Rather I will humbly suggest that you are a tad out of your depth here.

    Moderator Response:

    [JH] The deleted paragraph is a blatant "ad hominem" attack which is prohibited by the SkS Comments Policy.

    You know better than that.

    Please take the time to review the policy and ensure future comments are in full compliance with it.  Thanks for your understanding and compliance in this matter.

  35. There's no correlation between CO2 and temperature

    Google 1976 US Standard Atmosphere Calculator, Digital Dutch and the Stefan-Boltzmann Law Calculator. From the Earth Energy Budget emitted by atmosphere is 169.9wpsm and emitted by clouds is 29.9wpsm. They add up to 199.8wpsm. Entering 199.8 for P yields 243.64oK. Now enter 5,891 meters for altitude and -6.22oK into the Standard Atmosphere Calculator. T=243.638oK Subtract 243.638oK from 281.93oK. Where did thes extra 38.292oK come from? Gravity. The 12 tons of air over the air at the surface increased the Pressure and Density. According to the Ideal Gas Law Pressure and Density determine Temperature according to the following formula. P=CDT Where C is the Gas Law Constant. At 0.0 meters altitude the Ideal Gas Law Calculates:
    101325 Pa = 287.052 Pam3/kgoK * 1.25203 kg/m3 * 281.930oK.
    How much did the Gravity induced increase in Temperature increase the the radiation emitted by the surface temperature? 154.8wpsm. 199.8wpsm +158.4wpsm=358.2wpsm.

  36. 2016 SkS Weekly Climate Change & Global Warming Digest #50

    Courtesy of my son on facebook:

  37. 2016 SkS Weekly Climate Change & Global Warming Digest #50

    One Planet Only Forever,

    You said, "a subjective opinion can be whatever anyone wants to believe. But as soon as there is any objective basis for the 'opinion' the freedom to beleive what you want is gone and you must participate in the legitimate discussion or argument, accept the objective evidence, and be willing to change your mind if your opinion cannot be objectively and rationally justified."

    This is quoteworthy material. I happen to collect pithy quotes. To whom should I attribute this? One Planet Only Forever? Patrick Stokes?

  38. One Planet Only Forever at 16:04 PM on 12 December 2016
    2016 SkS Weekly Climate Change & Global Warming Digest #50

    CBC Radio show "The 180" recently included a discussion with Australian philosopher Patrick Stokes with the common sense but currently very provocative title "Actually, you're not entitled to your opinion".

    My brief summary is that a subjective opinion can be whatever anyone wants to believe. But as soon as there is any objective basis for the 'opinion' the freedom to beleive what you want is gone and you must participate in the legitimate discussion or argument, accept the objective evidence, and be willing to change your mind if your opinion cannot be objectively and rationally justified.

    A key point made is "What it comes down to is that for these kinds of discussions to work, you need to have agreement on what counts as evidence and what counts as success and failure and increasingly we don't even have that." I ama firm believe that the guiding priciple for what counts must be the objective of 'advancing humanity to a lasting better future for all'. Others may argue that fuller freedom of everyone to pursue pleasure, popularity and profitability will achieve that objective. I demand proof of their claim, and what is happening regarding climate science is some of the strongest evidence to date disproving their desired opinion.

    In addition to the 'reasons people do not accept that their opinion is not correct' that are presented in the interview, I am a firm believer (and believe there is ample evidence to support my opinion) that resistance to accepting climate science is largely due to the required related understood loss of opportunity for personal benefit.

    Accepting climate science actually requires acceptance that many developed perceptions of economic prosperity and opportunity are actually unjustifiable. Especially perceptions of prosperity that were maintained or increased through the past 30 years by the continued and increased burning of fossil fuels. That continued pursuit of benefit occurred as it was becoming better understood that that way of benefiting had to be rapidly curtailed for the benefit of the future of humanity, contrary to popular preferred opinions among the wealthiest and already more fortunate humans (opinions that less fortunate humans may even be tempted to prefer to believe).

  39. Report helps scientists communicate how global warming is worsening natural disasters

    Whether climate change is or isn't a significant threat, there are great benefits to be had from transitioning to renewable energy. 

    A world where air quality is high and where most countries can be self-sufficient sounds pretty good to me. 

  40. Skeptical Science at AGU 2016

    I'll be there, and would love to talk about Alaska's role in the climate conversation. I'll see if I can catch John or Sarah at their posters. I'm interested in seeing climate mitigation become more a part of Alaska politics. I'm interested in the whole range from specific climate science (my poster, EP41A-0900, is related to landslide tsunamis following deglaciation), to adventure narrative as a means of conveying climate science, to climate advocacy.

  41. There's no correlation between CO2 and temperature

    John Warner,

    Your claim at 139 that "increase in radiative forcing of the surface air by the 12 tons of air above every square meter 158.4 W/m2." is unphysical.  The air pressure on the surface is a static force, while the radiation of W/m2 is power.  A static force cannot emit power or it would be perpetual motion.  You have made several other claims that are unphysical.  Making claims that are unphysical are very basic errors that demonstrate you have not mastered of the basic concepts of AGW.  It appears from your posting that you have developed your own description of AGW that does not match what professional scientists have developed.  What is your background that you are qualified to develop a new area of science?  

    If you want to convince others here that your ideas have merit I suggest that you start out asking questions about what you think are errors in AGW theory.  Discuss only one simple concept at a time to reduce confusion.  By discussing the basics you will be able to eliminate the errors that are rife in your posts here.  Expounding on your own ideas will not convince others while basic physical errors, like describing a static force as emitting power, are present.

    As an alternative you could post your material at WUWT where most of the readers do not understand the science and will lap up your ideas.

    Tom Curtis,

    I am amazed at your patience on this thread.

    Moderator Response:

    [JH] Please keep it civil.

    [PS] Also please note, if you wish to change the discussion away from Co2/temperature correlation, then find an appropriate thread and comment there. Leave a comment on original thread indicating where new comment is (the date of top right of  a posted comment is a suitable link). Offtopic comments are coming to get deleted.

  42. There's no correlation between CO2 and temperature

    john warner @139:

    1)

    "If you do a runs test on carbon dioxide you get all positive changes from one data point to the next. If you do a runs test on changes in carbon dioxide you get a nice scatter of pluses and minuses."

    The claim here is that, for each data point in a time series of CO2 concentration, the next data point is higher (all positive changes); but that the series x = CO2(i) - CO2(i-1) gives a variety of positive and negative values ("a nice scatter of pluses and minuses").  I hope I am not alone in seeing the straight forward contradiction in that claim.   Perhaps john warner means to claim that ΔCO2 is always positive, while Δ(ΔCO2) provides a scatter of positive and negative values.  If so, the point is irrelevant to autocorrelation, which is not a function of slope.

    2)  Here is the energy budget to which john warner refers:

    It is NASA's own estimate comparison of the peer reviewed estimates by Loeb et al, and Trenberth et al, (2009).  Of this, john warner says, "The back radiation 340.3 has no corresponding physical scientific meaning" despite the back radiation being an observed quantity from many locations around the Earth.

    The back radiation is IR radiation from greenhouse gases (including water vapour) and the cloud base. It's flux is less than that of the surface because it comes on average from a slightly higher altitude than the surface, and hence (because of the lapse rate) a slightly cooler layer than the surface. john warner's decomposition is a fiction.

    3)  With regard to the energy balance and GMST, because the energy flux is a function of the fourth power or temperature, the mean value of the energy flux does not directly correspond to the mean value of temperature unless the temperature at all points is identical.  Trenberth, Fasullo and Khiel (2009) discuss this issue in the special section on "Spatial and temporal sampling" (page 315).  Deriving the Global Mean Surface Temperature from the Stefan-Boltzmann Law and the known upward flux is, therefore, a basic mathematical error.  Thus, if the Earth had two equal parts, each being isothermal, with the temperature of one being 283 K, and the other 295.6 K, for a mean temperature of 289.3, the net upward flux would average at 398.2 W/m^2.  Using that to estimate surface temperature would yield a mean of 289.5 K.  The variation in surface temperatures is much larger than the +/- 6 K used in my example, which accounts for the larger discrepancy found by john warner.

     I should note that Trenberth et al derived their value from a reanalusis product (NRA), ie, a climate model run constrained to match observational data (ie, weather stations, among other sources).  That is, he is using a result obtained premised on the accuracy of weather stations to "show" that the weather stations are inaccurate - while making a mathematical blunder in the process.

  43. There's no correlation between CO2 and temperature

    MA Rodger @ 138 If you do a runs test on carbon dioxide you get all positive changes from one data point to the next. If you do a runs test on changes in carbon dioxide you get a nice scatter of pluses and minuses. Which proves Tom Curtis linear regression data is autocorrelated data. But I also explained that is the least of the problems with is carbon dioxide sensitivity coefficient.

    It is not your fault that you misinterperted the earth energy budget. The presention is intentionally misleading. The back radiation 340.3 has no corresponding physical scientific meaning. It is composed of emmitted by atmosphere 169.9 W/m2, plus emitted by clouds 29.9 W/m2, minus greenhouse gases 17.9 W/m2, (not even shown) and the increase in radiative forcing of the surface air by the 12 tons of air above every square meter 158.4 W/m2. (169.9+29.9-17.9+158.4= 340.3). In 1992 I wrote a 42 page paper which my congressman circulated to the relevant commmitties and submitted into the congression record based upon the misleading presentation of absorbed by atmosphere that confused you. I didn't like being tricked into making a fool of myself. That is why I self-educated myself so I can't be fooled again. I am dedicating a lot of my time on Skepticel Science to help those who are making a good faith effort to understand the real science of global warming.

    398.2 W/m2 is the radiation power per square meter of the earth surface. Using the Stefan-Boltzmann Law Equation the temperature of the earth surface is 289.48oK. 358.2 W/m2 is the radiation power per square meter of the earth air at the surface. The earth air temperature is 281.92oK at the surface. The difference is 7.56oK. This means that 40.1 W/m2 of the surface power is not absorbed by the air and radiated directly to space.

    The CERES mission proves that weather station data is not accurate. If something as simple as his was not settled when AlGore won the noble prize maybe CAGW was not settled either.

    The information contained in the earth energy budget is excellent, you just have to know how to draw inferences about the real world from the budget.

  44. From the eMail Bag: CO2 in the air and oceans

    That's the problem Michael. Very little has been done on negative emissions scenario's. There is this: Simulating the Earth system response to negative emissions But it explicitly states that 

    It is vital to address these knowledge gaps in order to quantify the requirement for, and implications of negative emissions.

    This is not my field. In fact there is no scientist on the planet that can fully have expertise in every field of climate science. It is too complex. I can add my knowlege you can add your and Tom can add his. Everybody from agricultural science to marine biologist, to physicists, mathematicians, economists, geologists etc etc..  Someone has to take the new information available regarding the LCP and add it to their specialty! I can't stop my research go back to school for 6 or 8 years to specialise on modeling a negative emissions scenario, then go back to my research again. The renassance man that knows everything in every field went extinct centuries ago. What you are asking me to do is unreasonable. Nor can Hansen be expected to know the cutting edge of agricultural sciences regarding the LCP.  It just isn't reasonable on something this complex. Now I have many places here given case studies and published papers as references. And there are people with different fields of expertise going over them. Read #17 if you don't believe me.

    But try as I might, I have yet to find the paper that modeled the scenaio where fossil fuel emissions drops to near zero AND worldwide agriculture changes are made sequestering 25 to 100 GtCO2/yr , what the outgassing of the oceans would be. It just isn't on any of the models on any published paper I can find. And I lack the expertise to publish a paper with than scenario myself.

  45. From the eMail Bag: CO2 in the air and oceans

    Red Baron,

    Good luck with your scheme.  I hope that you can rebuild human agricultural methods across the entire world and that drought does not block your scheme.  I will support your enterprise because I think better soil makes for better farming.

    I note that you do not cite a single reference to support your claims in 31.  Of the very few citations you have previously made most appear to me to be anecdotal or very small scale.  

    While you claim that large amounts of carbon can be sequestered, you have not addressed how much carbon has to be removed from the atmosphere.  You do not account for where all the soil carbon that has been lost has gone.  It stands to reason that you cannot sequester all the carbon released from soil and all the fossil carbon by your scheme.  You state in 27 that you have no idea how much carbon the ocean will outgas.  These issues have been studied and peer reviewed papers address these points.  I think you underestimate the amount of carbon that has to be removed by a very large amount.  Remember the denominator.

    Everyone has their own standard of proof.  While I hope you succeed, you have not met my standard.  Based on the data I have seen you present, I doubt your claims. 

    Since I have also offered no data or proof I expect readers to treat my claims with caution.  Look at the posts that Tom Curtis makes.  He rarely makes a claim without a citation to show why he claims that.  When he makes the same claim again he cites his reference again.  To convince scientists you need to show that you are correct using data from peer reviewed sources.

  46. From the eMail Bag: CO2 in the air and oceans

    Michael,
    What you continue to ignore is the scale. If the nearly 1.5 billion ha of world cropland now under cultivation for crop production (and a significant % of the 2 billion ha of cropland that has been abandoned by humans since farming began due to soil degradation) were sequestering CO2 at 5 -20 tCO2/ha/yr via the LCP, that totals 7.5 to 30 GtCO2/yr cropland + whatever degraded abandoned land can be restored.


    + 3.5 billion ha agricultural grazing land = 17.5 to 70 Gt CO2/yr


    So just those two categories alone we have a biological potential of 25 to 100 GtCO2/yr. And not for only a year or two. The source I already gave you states currently about 80% of the world’s agricultural land suffers moderate to severe degradation. So instead of the 6, 8, 10% SOC meters deep; we have 1, 2, 3% SOC centimeters deep. It will take decades to fully restore this land. That means at MINIMUM we can have 25–100 Gt CO2e pumping into the soil sink for decades before we even have to start worrying about feedbacks slowing us down. In fact no one really knows if it ever will slow down short of atmospheric CO2 getting so low and climate so cold it reduces the flow. All the inovators are claiming sequestration rates that continue to climb. Gabe Brown has one field up to 11%. That field actually sequesters faster now! It just keeps getting deeper. Coli Seis's best fields are up to sequestering 33t/ha/yr. No reduction in rate at all. Dr. Jones asks why would anyone think the LCP would ever slow down?

    The soil gets so healthy it kills off the AMF? Maybe so. But no one ever observed such a thing ever.

     

    Total worldwide CO2 emissions from fossil fuels and cement combined was 36 Gt CO2 in 2014, but only about 20Gt actually adds to the atmosphere, because natural ecosystems and processes are at work mitigating this already.

    Of course biological potential varies quite significantly from practical potential. Just training all the farmers how to do it would be a herculean task.

    That's why I have consistently used far more conservative numbers. I get quite annoyed when I use ultra conservative numbers and get accused of exaggerating them instead, implication being this is some small thing that maybe might help just a little. You claim there is an immense amount of carbon that needs to be sequestered. I agree. However, the land surface of the planet under agriculture is immense! And the amount of carbon missing from our agricultural soils worldwide is immense.
    I have been using 62-250% as my numbers. But as you can see I am being excruciatingly conservative.

  47. There's no correlation between CO2 and temperature

    john warner @135 & @136.

    It is good that you enjoy the challenge. Perhaps you can communicate to us your reasons for considering that "the earth’s average annual global surface air temperature" can be calculated in the manner presented @136. In particular, what possible relevance does an estimated 358.2W/sq m average radiative energy flux between surface & atmosphere have to establishing such a temperature. (I am conscious that this was described as being a rhetorical subject of discussion on the previous thread and this off-topic and that it remains so on this thread.)

    And would you communicate your reasoning for suggesting @135 that your methods avoid the problems of autocorrelation as they patently do not.

  48. There's no correlation between CO2 and temperature

    Note concerning john warner @135 & @136.

    These two comments are copies of comments first posted on this comment thread which is also where the referenced previous comments can be found.

  49. From the eMail Bag: CO2 in the air and oceans

    Red Baroon,

    We agree that increasing the carbon in the soil would be a good thing to do.  We will have to see how much it helps reduce the carbon burden in the atmpsphere.  Every little bit helps some!  If it also increases soil productivity (which as a gardener it helps my soil a lot)  that is great too.

  50. From the eMail Bag: CO2 in the air and oceans

    Thanks, RB. Very good point about eroded carbon. Has anybody done any studies on the carbon content of recent lake/reservoir sediments downstream from farmed areas?

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