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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 22051 to 22100:

  1. Trump and the GOP may be trying to kneecap climate research

    Tom Curtis @ 26 Scientific calculator, UAH Lower Troposphere, Mauna Loa CO2 annual

    Tell moderator my regression conformed to reality.

    Tom Curtis @ 27 No Problem.   Moderator said you can't measure average annual global surface air temperature.

    Tom I can talk to you. Tell moderator that I read and understood your regression at Tom Curtis 15. I have invested a lot of time convincing you that we can have a discussion. You might also tell the moderatorer you have never received a more thoughtful, intelligent, knowledgeable, insightful response.

    The average annual global surface air temperature is 281.92oK. [mod. - Nope. That might be TLT, but it sure isn't a surface temperature reading @ 8.77°C]

    Let's have a discussion. You choose the subject.

    While your thinking of a subject consider that dana 1981 wrote an article saying the climate change denier don't know science. I am here on your home field to prove that the global warming theory is shallow and not scientific. My preference is for you to defend what you think is the strongest scientific argument for global warming. Let's find out who has the science on their side. If you like the way I think let's see what we agree upon.

    Moderator Response:

    [RH] The moderators are perfectly capable of reading your comments. You don't need to ask Tom to tell us anything. You're skating just along the edge of moderation complaints, and per our policies, those are deleted. But continue...

    [PS] Ok, the paper I pointed to (have you read it?) points to lack of practical usefulness in any measure of absolute surface temp given the error bars. (especially compared to anomaly methods). You would know that if you read resources people have provided you. So far you have only demonstrated you have an  extremely poor grasp of even the basics of climate theory, a reluctance to improve your knowledge,  and yet on that basis believe you know more than the experts. You have so far failed completely to overturn any of the science here. You have not stated as requested where you agree or disagree with Tom's response on your CO2 outgassing fantasy.

     "You might also tell the moderatorer you have never received a more thoughtful, intelligent, knowledgeable, insightful response." ROFLMAO!

  2. Trump and the GOP may be trying to kneecap climate research

    John Warner, I have read all your posts, and broadly I disagree with your reasoning and conclusions. Much of what you say is hard to follow, and looks wrong to me, and Tom Curtis has much more in depth climate knowledge than me and has picked holes in the same things. I also cant see anything incorrect in what Tom has said, and his notes on the ice age cycles were illuminating and clear.

     Tom has also shown you the respect to respond to specific issues you raised. Now its your turn to respond to his specific points especially in post 20, points 1-4.

    You appear to believe CO2 is coming from the oceans or some other natural source. The oceans are acidifying (getting less alkaline) so are absorbing CO2, not emitting it (in a net sense over decadal time periods).

    Volcanoes and the biosphere are ruled out as significant sources. Theres a ton of research on that and you havent even begun to falsify it. You would have to show in precise detail where its wrong, not just generalise or do your own alternative version..

    There are many things that show increased CO2 comes from fossil fuels rather than other sources. The population of the earth has gone from 1 billion to about 7.5 billion in just the last 150 years, which represents a huge increase in fossil fuel use correlating rather well with increases in atmospheric CO2.

    Sure warmer and warmer water absorbs less and less CO2 but so what? it has not reached saturation and when it does that would obviously present us with even more problems.

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

    RedBaron, nigelj,

    THere are no examples of such feedbacks. As you correctly asserted @2, the stabilising feedbacks act on a long timeframe of millenia. Ultimate known negative feedback of rock weathering acts on 100ky+ timeframe. Such timeframe is by definition irrelevant to humans and to human civilisations. Talking about "reinforcing" those feedbacks, while cranking the main control knob (CO2) to the overheat rate never seen in many milion years is just like joking. A sweet fairy tale, but the physics & the numbers tell you it's not a real tale.

  4. Fake news tries to blame human-caused global warming on El Niño

    ELIofVA @7,

    I divided this net sequestration by nature by the world's population to come up with 2.57 tons/person/year to achieve net zero co2 emissions.

    You're rincorrect here. Nature (mainly oceans and biosphere) is currently sequestering human C from the atmosphere at the reate of about half of human's emission rate. If we lower the emmision by half, then the sequestration by nature will also adjust accordingly and will become about a half of new emission rate (1.3 tons/person/year accodring to your calculation): the situation we had ~40years ago. For the sequestering forces of nature to come "in ballance" with emitive forces og humans, thett human emissions must drop well below the current rate, below 5%, the lower the better. That's why scientists who know those number emphacise a complete (or at least ner complete) decarbonising of global economy is a must do to stabilise Earth's energy balance and climate.

    The above is what we know for sure. On top of that are positive feedback that we know have  happened in the past but we don't know enough to quantifi them, like e.g. warming ocean becoming carbon source in the long term. We know such feedback happened in glacial cyccle timeframe (ca 10ky) but we don't know why. In case of AGW timeframe presently, we just ignore the warming ocean CO2 feedback and hope that it does not happen in time the action be taken to bring emission rates to zero.

    Very few (if any) negative feedbacks are known that would allow a "breathing space" i.e. increased carbon budget for humans to burn without climatice consequences. Your back-envelope calculation allowance certainly cannot be sustained (if the goal is Earth climate stabilisation), although in short term is better than doing nothing and burning as much coal as possible, as current president-elect wants to do.

  5. Fires and drought cook Tennessee - a state represented by climate deniers

    Michael Sweet @9, I agree the IPCC are conservative, partly because their reports have to be signed off by governments, and some of these have interests in playing down climate change. This conservatism should certainly be pointed out to school students.

    I suppose the question is whether to teach about global warming in school, and also secondly whether to include both the mainstream and skeptical views. Whatever is done will have positives and also problems, as you point out some of the problems. However I believe ignorance is not bliss, and the basic mainstream science should be taught, and also some of the sceptical positions should be acknowledged.

    If students feel they are getting too brainwashed into just the mainstream position this could have the unintended effect of making them sceptical and they will read nonsense in their own time uncritically. Better to show them the sceptical arguments at school and their weaknesses.

    Of course I'm being idealistic. It would not be easy to get schools to do any of this correctly. But maybe it should be tried.

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

    Red Baron @3, that is a good thought but do you have any examples?

  7. Trump and the GOP may be trying to kneecap climate research

    john warner @24, the Global Mean Surface Temperature from Jan 1979-Dec 2015 was 15.1oC with a margin of error or about +/- 1oC (I would have to email a member of the BEST team to obtain a precise value).  The trend temperature increase over that period was 0.66oC.  The time period was chosen to approximately match that of the satellite record but to avoid any contamination from the seasonal cycle.  This is according to the Berkeley Earth Surface Temperature Land Ocean Temperature Index (BEST LOTI).

  8. Trump and the GOP may be trying to kneecap climate research

    john warner @23, how did you obtain that regression?  Specifically, what data did you use?  Was the data used in monthly or annual values?  Did you use an ordinary least squares linear regression as obtained from the linest function in Open Office and Excel?

    Moderator Response:

    [PS] I rather doubt john warner has will or skill to engage in meaningful discussion of the science and so far has simply derailed this thread with offtopic "discussion". I have asked him to address specific points so that any further discussion to move to appropriate threads. Please dont chase after wild horses if/until john has more clearly identified his points of departure.

  9. Trump and the GOP may be trying to kneecap climate research

    Tom Curtis at 20. Using my temperature data I say the earth's average annual global surface air temperature has increased .444oK since 1979. Can you make a statement like that from your data? The key to doing research is knowing what you are looking for. For all there knowledge global warming believers have they can never answer the simplest questions. What is the earth's average annual global air temperature? I am not going to give you the answer until you give yours.

    Moderator Response:

    [PS] Sloganeering.

    The impossibility of measuring global absolute surface temperature as been known for a long time and if you havent read Hansen and Lebedeff 1987 then it is time you did. Then you might actually understand why anomalies are used instead.

    At this point you are not engaging in any meaningful conversation and instead are rambling from topic to topic. I would request that answer Tom Curtis' point, stating clearly where you agree and where you disagree before jumping off at another tangent. If you not are interested in engaging with points raised, then your time commenting here is over.

    [RH] [edit] Here is a very good explanation of why it's better to use anomaly over absolute temperature. LINK  It's a sure sign of a rookie who insists on using absolute temps.

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

    @ nigelj

    "This is too long term to benefit humanity."

    Debatable. Obviously humans can effect the results. Rather than accidently triggering the reinforcing feedbacks (which is what we have done so far), there is always the option of purposely triggering the stabilizing feedbacks.

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

    As far as I'm aware one of the few remaining uncertainties about climate change is the exact nature of some of the positive and negative feedbacks. It does appear on the best evidence available that positive feedbacks outweigh negative feedbacks. Given periods of warming in the past last a long time this is evidence positive feedbacks dominate over negative ones.

    It appears that positive feedbacks may be dominant in the short to medium term (we are already seeing positive feedbacks from the Arctic) but periods of warming do not seem to be permanent. Perhaps negative feedbacks like elements of the carbon cycle may kick in much longer term (over millenia). This is too long term to benefit humanity.

  12. Trump and the GOP may be trying to kneecap climate research

    john warner @23.

    If you wonderful regression was anything more than the result of a curve-fitting exercise, you could, say, use it with HadCRUT4 (suitably re-based) to calculate CO2 levels back into the 1800s. Alternatively, you could use it with CO2 data obtained from ice cores to back-calculate a temperature record.

    I have to say that the results of such calculations do suggest your regression is nothing but curve-fitting.

  13. Fake news tries to blame human-caused global warming on El Niño

    ELIofVA @7, I think you are totally correct about Vietnam, The Sandinistas, and Iraqs so called weapons of mass destruction. However this was all politicians not getting things right or not being honest, or just indulging in a twisted ideology. The media can only report what they say.

    Fake news is different as it means the news itself becomes infiltrated with basic factual errors about routine news stories, and these are hard to spot. Its insidious and by the time its corrected nobody notices, and the fake news has spread like a virus and becomes accepted wisdom.

    It also becomes hard to know what are genuine news organisations with some sort of regulatory standards over them , and what are pretend organisations that are unaccountable. The internet means anyone can call themselves a news organisation, but they may be operating from a country that has no control over them or regulatory requirements, yet the organisation effectively has global reach. Of course people should check the credentials of the website they are looking at, but many people dont.

    Plus you get people like O'reiley on Fox news. Of course he isn't presenting the news as such, its his opinions and general commentary, so a different issue, however much of what he says seems totally unsupportable to me and very misleading. However this is the price we pay for free speech, so its a sort of paradox.

  14. Fake news tries to blame human-caused global warming on El Niño

    I apologize.  This is a political comment and probably ad hominem but certainly not off topic.  But then, the whole problem with not mitigating our carbon output is political. Any year 12 science student could lay out what we need to do.  The politicians simply won't do it because they are in the pocket of vested fossil fuel interests. 

    Complaining about false news is all the flavor of the week but it is hardly surprising.  The neigh sayers (mis-spelling intended) have had an example from the best.  Would, for instance,  anyone except a dyed-in-the-wool bible belt thumper consider O'Riley of Fox news a journalist.  The America media has provided a constant diet of false news for decades.

    We, the rational few, can but try our best but  In the end it is economics that will carry the day.  When, for instance, a truly affordable electric car is produced and the public realizes that they can drive about 6 times as far on a dollar's worth of electricity than on a dollar's worth of petrol, the speed of the shift will rival the shift from horses to cars.  One hopes the economic factors will be in time to save us from ourselves.

    If this year is a harbinger of things to come, we don't have all that much time.

  15. Trump and the GOP may be trying to kneecap climate research

    KR @ 19  My regression was dCppm/yr = 1.70ppm/yr + 1.94ppm/oK * To

    T is the temperature anomaly around the 1981 to 2010 baseline. For example if T is 0 the carbon dioxide increases 1.7ppm/yr.   In 1998, an El Nino, year the temperature anomaly T is 0.5oK        dC = 1.7ppm/yr + 0.97ppm/yr = 2.67ppm/yr

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

    How does the Ocean fight acidification? 

  17. Fake news tries to blame human-caused global warming on El Niño

    The problem of repeated lies gaining credibility in the political discussion has been with us for a long time.  North Vietnam's attack on US Navy in the Gulf of Tonkin was a lie that resulted in an escalation of the war (Johnson).  Nixon has a secret plan to end the war.  Sandinista Nicaraugua has communist expansionist goals (Reagon).  These are only a few examples of lies that had political weight.  Suddahm Hussein had weapons of mass distruction and was involved with 911 attacks (GW Bush).  In the US, we are threatened, not by terrorist, but by our polorization and our retreat to communities that support our biases.  The internet has exasperated that trend.  Of course, I have learned a lot that I believe is objective such as on this web site.  If the human tendency is to avoid objective truths and their implications, then we will appropriately pass so the the world (never really threatened) can reevolve without us.  Our only hope with respect to climate change is for the culture at large to recognize that we must limit our emissions to what can be sequestered to avoid adding to the carbon concentration in the atmosphere.  This includes the recognition that that is the source of global warming.  With that recognition, we can build an economy that understands that limit.  We know every year exactly how much over net zero emissions we contribute to co2 buildup by comparing air samples, commonly measure in part per million.  I want people to think of this as a debt.  When we achieve net zero carbon emissions, we will no longer be adding to the debt.  However, the carbon already emitted will continue to cause global warming (reduced ice reflection, increased dark blue ocean heat absorption, melting tundra adding methane GHG, et).  To pay down the debt, we must emit less than can be sequestered by natural or other means.  To pay back this carbon in atmosphere debt, we need to imagine an economy the is net sequestration of carbon (humans emit less than can be sequestered).  Achieving the recognition that carbon buildup in the atmosphere is the source of the problem is a huge cultural we are looking for.  For those that do recognize this, we need to measure our carbon emissions to see how we need to change.  I used figures from IPCC 07 report, https://www.skepticalscience.com/human-co2-smaller-than-natural-emissions.htm posted on this website to determine net sequestration by nature and divided by world population.  To share this fairly, I divided this net sequestration by nature by the world's population to come up with 2.57 tons/person/year to achieve net zero co2 emissions. With this understanding, we have a chance to structure support localling and globally to achieve this standard. Keeping it vauge works for the interest of procrastination and denial.  

  18. Fake news tries to blame human-caused global warming on El Niño

    I have a theory that natural evolution has stopped for mankind. Natural evolution makes sure that only the strongest and smartest individuals of a species survive, creating stronger and smarter offspring. Our civilization however makes it possible for everyone to survive, no matter how stupid they are. Take a primitive society. Any farmer who doesn’t observe the weather and the time of year will sow at the wrong moment and his crops will fail. Any hunter-gatherer who eats the wrong - poisonous - plants will die. Facts are rock-solid for such people. It is ironic that it is our scientifically advanced, highly technological society that allows people to blindly deny basic facts without being “punished” for it by nature.

  19. Trump and the GOP may be trying to kneecap climate research

    Tom Curtis @ 15 I like to get to the heart of the matter and I don't feel like typing pages of notes to justifying my petty technical criticisms. I realize the incredible scientific inferences about reality from the summary statistics you report will easily survive my petty criticisms. I looked at how you calculated your independent variable and the scale on the x axis. Carbon dioxide concentration increased 1.7wpsm in 163 years. Carbon dioxide added 0.01 watt per square meter of radiative forcing every year and controlled 81.1% of the of the earth's air temperature variation for 163 years. And just one watt per square meter of infrared radiation absorbed by this gas can raise the earth's air temperature 0.58oK. None of these inferences conformed to reality. [mod. - Are you suggesting here that every PhD level researcher, every National Academies, and all the most prestigious scientific institutions around the world, all don't understand the basic science on climate change? It's a stunningly audacious statement!] My understanding of the global warming controversy is that the earth controls its own temperature [How? By what mechanism or process does this happen?] and there should not be a correlation between forcing factors and air temperature. That is why in comment 9 I showed how the earth mitigates a 23.5wpsm change in solar radiation power every year. In the comment at 17 I regressed change in carbon dioxide against air temperature and found that temperature explained 58% of the variation in carbon dioxide. But I also regressed air temperature against the change in carbon dioxide and also got an R2 of 58% but the regression results did conform to reality. Returning to your regression the challenge was to figure out how you could you get such a high correlation with annual air temperatures born of chaos with a de dimimus forcing factor and a carbon dioxide sensitivity coefficient 2.951 times higher than the theoretical scientific value. And the answer was obvious. A proxy measure for air temperature was being regressed against another proxy measure for air temperature. But since proxy measures are so bad, why the high correlation. When the ocean temperature is higher less atmospheric CO2 is sequestered from the CO2 created from burning fossil fuel and the parts per million increase for the year is higher than average. This would result in a higher annual increase in carbon dioxide radiative forcing for that year. If the ocean temperature is lower more atmospheric carbon dioxide is sequestered in the ocean and the parts per million increase in the air for the year is lower than average. The result is a decrease in radiative forcing for that year. The physical connection between the two variables could not be closer because the dependent variable is the Global Mean Surface Temperature and 70% of the GMST is sea surface temperatures measured by ship logs and recently by satellites. Finally, why is the sensitivity so high. In a linear regression if I enter the data for the independent variable by one decimal place to small the coefficient will be one decimal place to high. By entering a too low forcing factor for the independent variable you got a too high carbon dioxide sensitivity coefficient. As currently generated it has no scientific meaning. Whatever it is, it shows a relationship between carbon dioxide in the air and sea surface temperatures, which we already know. In order to have the moral force of science for public policy, a quantitative scientific study has to have a rigorous scientific explanation and the summary statistics have to conform to reality.

    Moderator Response:

    [RH] These last two posts read as little more than indecipherable ramblings. Maybe Tom can make sense of it but this activity is very much trying the patience of moderators.

    We encourage substantive discussion on climate matters. Perhaps you can endeavor to organize and present your thoughts in a more coherent manner so that people here can better understand the points you're trying to make.

  20. Trump and the GOP may be trying to kneecap climate research

    Tom be patient with me. I have been working hard on your regression. I have pages of notes to justify my petty criticism of your mistakes. I only sent you those two comments to let you know I was interested. I apologize for not telling you the first note was a comment I sent to an Economist post commenter November 24, and I was not being critical of him. I was just saying I can get the facts. Neither of us knew anything about the annual temperature effect. And it was not until I finished my comment that I realized the magnitude of the annual temperature effect made carbon dioxide less believable. In the comment at 17 using temperatures I calculated that carbon dioxide only accounted for 24.17% of the current temperature trend of 0.0120K per year. Converting to air temperature equivalent radiative forcing to heat both the air and the surface as you introduced adds up to 0.7612wpsm per year. 0.0148wpsm per year divided by 0.7612wpsm per year equals 1.94%. You were trying to augment the carbon dioxide sensitivity coefficient with the heat coming out of the surface that you forgot to put in. Maybe you can give up on this one and credit the other 199.7852watts per square meter attributable to the other forcing factors with heating the surface. The second was a comment I sent to Dan Lashof at the National Resource Defense Council in November of 2012.

  21. Oceans heating up faster now than in the past 10,000 years, says new study

    jzk,

    While the paper summary says the findings support the idea of a global MWP, this only means the data here is consistent with it. This isn't real evidence of a global anything because it is simply of one area. There are many valid studies in that list of "Studies supporting a MWP" on that other website of ill repute, which say their findings support the idea of a global MWP. However, those studies are not put together by anyone I'm aware of. When people do put all the data together (PAGES2K for example) there doesn't seem to be one. Even the MWP that seems to appear in the Northern Hemisphere studies is a pale shadow of what deniers want it to be.

    When I look at the graph of OHC this study presents, it seems to be quite analogous to the same period in Marcott. Although the beginning of the lang slow cool down begins earlier. Granted I'm no scientist but that seems to me to not really support a global MWP or LIA as described by denialists. There is no sudden or pronounced warming or cooling in either period there is just the long term trend (Milankovitch Cycles?) plus noise.

  22. Fake news tries to blame human-caused global warming on El Niño

    JW Rebel @4, yes some news stories or other internet claims are pretty obviously fake, but during the election reputable looking organisations were saying Hilary Clinton had been arrested by the feds over the email issue. This has a little more credibility, and other fake news accusations were made about her financial situation that were subtle and sophisticated, and plausible sounding, and many people would get sucked in.

    The internet has lifted it all to a completely new level as numerous organisations exist a mouse click away that have plausible sounding, pleasant names that hide hidden agendas. Or they sound like traditional news media but arent really, and just re-hash information. It is much harder for ordinary people to sort fact from fiction, and this is leading to some people saying truth is whatever you want it to be.

  23. Fake news tries to blame human-caused global warming on El Niño

    There has always been a lot of fake news and propaganda. Most of it is easily discernible as a category all of its own, featuring Hillary Clinton's new pregnancy or extra-terrestial influences, or the enemy engaging in perversions and eating babies, etc. It only becomes a problem when the genres start to run. Well do I remember my children of 4-5 being confused by a televized royal wedding, confused by the fact that it was like a fairy tale but presented as news. With a little good will people quickly learn to distinguish — it's mainly the good will that is the problem.

    On the bright side, Delingpole seems to embrace the fruits of climate science research, throwing around 'El Nina' and the 'decadal oscillation' as if they have become as familiar as the words we use for kitchen utensils.

  24. Fake news tries to blame human-caused global warming on El Niño

    I can see an increasing temperature trend in the graph above, and individual peaks from el nino. In fact squinting my eyes down it appears the el nino peaks are getting larger with time, with the 2015 peak being very high. This suggests the warming atmosphere may be altering el nino itself. I would be interested if there is evidence of that.

    I read the shooting incident just an hour ago. This shows the real danger of the world view of the alternative right in America. The internet is providing an easy platorm for fake news that is enabling naturally paranoid people to join up. Its almost like society in America is developing a case of mass schizophrenia, in the same way you sometimes get outbursts of group hysteria.

  25. Fires and drought cook Tennessee - a state represented by climate deniers

    Topal #5

    Actually the answer to your question is "mostly no".  The fire was likely caused by a careless human, or a malicious one.  Global warming could have contributed to making the conditions of the fire worse.

    Besides real scientists rarely answer with an unqualified "Yes!" or "No!" to any question of contemporary science.

  26. Fake news tries to blame human-caused global warming on El Niño

    For more details about the story ubrew addressed in his comment, see:

    Son of Trump security adviser spread baseless 'pizza gate' conspiracy by Tai Kopan, CNN, Dec 5, 2016

  27. Fake news tries to blame human-caused global warming on El Niño

    Here in America, a man shot up a DC pizzeria.  A fake news article said Hillary Clinton and her chief of staff, John Podesta, were running a child sex ring in the back.  Gullible people were broadcasting this and death threats were being issued to the restaurants owners and workers.  Ordinarily, this could be identified as a new National Security Threat, worthy of direct action by the incoming National Security Advisor, John Flynn.  The only problem is: Flynn was one of those people rebroadcasting this fake news segment.  So, this is the context for this latest, wildly fact-free cherry pick by the climate disinformation artists, who know their audience doesn't read, or even want to see, the 'fine print'.

  28. Trump and the GOP may be trying to kneecap climate research

    John Warner @17, your style of writing verges on inchorence, making it difficult to determine your argument, when you even have one.  A major contribution to that effect is your tendency to take up distinct arguments within the same paragraph; but to also scatter the discussion of any given argument across multiple, not necessarilly consecutive paragraphs.  You appear, however, to be raising three major arguments, and a minor one:

    1. That I did not cite my sources of data (the minor point);
    2. That the TLT satellite temperature record, and the UAH version of that record in particular is, is the only temperature record that should be used for climate analysis;
    3. That in any event, discussion should focus on energy levels, rather than on temperature per se; and
    4. That any correlation between CO2 forcing and temperature is a consequence of outgassing of the ocean induced by the rise in global temperature.

    If I have missed, or mistated an argument, please specify the argument clearly by explicitly stating the claim then in sequential paragraphs, with a separate paragraph for each line of evidence in favour of the claim, state the evidence for each claim; before then stating the next claim and so on.  Your thoughts are not so brilliant that we should be required to wade through "word salad" to try and garner them.

    Taking the identified points consecutively on the list above:

    1)  You claim, "Since you did not cite the sources I have to gather my own facts."  In fact, I did better than cite sources, I provided active links to the data (except for Mauna Loa which I thought sufficiently well known to not require such a link).  Consequently, you did not need to "gather your own facts" because I did not provide you with the appropriate citations.  Further, you did not "gather your own data".  The data you use was gathered by (mostly) NOAA and NASA and processed by Spencer and Christy.  You merely cherry picked the data most suitable to your narrative, ignoring approximately 80% (by time) of available temperature data to do so.

    2)  Your preferred temperature data is not temperature data specically.  Rather it is the microwave signal from Earth as detected by a series of different units from a series of different platforms.  These platforms in turn have had decaying orbits and orbits not in tune with the day night cycle such that different locations are observed at different local times on consecutive orbits.  On top of this, the quality of the instruments themselves are known to decay in space, and the altitude weighting profile of the observed signal changes with the altitude of the surface, and depending on wether the signal processed is over land or sea.  On top of that, each data point represents an average of signals across a wide swathe so that all TLT data is "homogenized" automatically, despite the major objection to the instrument record mounted by AGW deniers being that homogenization.

    Because of these difficulties, the processing of the microwave signal data required to generate a temperature record is far more extensive than that required for the instrumental records.  The difficulty of the process has resulted in a number of major corrections over time, partly listed below:

    These corrections have continued, and Spencer and Christy are in the process of introducing a major new correction at the moment.  Curiously at the same time as they are introducing a correction that will reduce the trend, the rival RSS product (which produces a different record from essentially the same data) is introducing a correction that increases the trend.  Also at the same time, Spencer and Christy are ignoring a peer reviewed correction to their own product which would also increase the trend.  It should be noted that (unlike the case with the instrumental record), the corrections are large relative to the "observed" trend.  Worse, there are at least four independent analysis of the microwave data to determine a TLT temperature, all of which come up with different trends, with the differences being large relative to the observed trend.

    In contrast, with the instrumental record, using partially overlaping data sets, 5 major institutional records using different techniques all come up with essentially the same result.  One of those, the Berkeley Earth Surface Temperature project (BEST) was headed by people noted for their criticism of climate scientists, and funded by leading climate denier funders, the Koch brothers.  It would rightly have been regarded as the denier's temperture record until the deniers repudiated the result (having earlier affirmed that the method was appropriate and adequate).  Further, at least 4 independent private citizens have processed the data and also come up with essentially the same result.

    The upshot is that we know fairly well what the instrument record tells us about GMST, whereas we do not know what the satellite temperature record tells us because we do not yet know the correct means of processing it.  Therefore, if anything we should prefer the instrumental record.  We certainly should not truncate 80% of the data because we refuse to use any record other just one satellite record.

    [PS] Further details of satellite versus thermometers discussed here and a good place for any further discussion, before this goes too much further offtopic.

    3)  You write:

    "Adding ocean and land absorption of heat diminishes the role of carbon dioxide when your consider air, land and oceah heat versus only air heat. You logically increase the role of natural heating forces."

    However, when you get around to discussing it, you do not discuss the energy involved, but restrict the discussion to temperature trends (degrees K per year).  You give rough energy conversion factors but no data.

    Instead, I the 0-700 Meter Ocean Heat Content data from the KNMI Climate Explorer, and regressed it against the CO2 forcing as determined from Mauna Loa.  The result is a correlation of 0.917, and R-squared of 0.841, and a regression of 13.55 (+/- 0.445) x 10^22 Joules /(W/m^2).  The 0-700 OHC data represents sufficient of the Earth's total surface heat content anomaly to be considered representative over the long term.  That regressing the OHC against CO2 forcing provides as much support as does regressing surface temperatures means that your objection (for which you provide no relevant data) is merely a smoke screen.

    4)  Finally, with regard to cause and effect, it is a matter of simple physics that increasing CO2 concentration will increase surface temperature, and that increasing temperature will increase CO2 concentration in the atmosphere.  The question is, what is the relative magnitude of each effect.  If we look at the record over the recent glacials, we see (according to this graph) a change of 100 ppmv for a 10 C temperature increase:

    That represents 10 ppmv/C meaning the 120 ppmv increase in CO2 since the preindustrial era, if caused by the temperature increase, must have required a 12 C increase in GMST to match it.  That is somewhat exagerated.  GMST are widely thought to have represented just 50% of the Vostok variation, which would reduce the required temperature increase to 6 C, but again that is way to much.  Using your formula, dC=1.70+1.94*T, a 120 ppmv change in CO2 concentration requires a 61.85 C change in temperature to drive it.  Taken seriously, if you actually think that is the relationship between CO2 concentration and temperature, you must think the Earth to be ice free and uninhabitable, with a GMST of 76 C.

    Your formula is, of course, in error, having been taken from too small a data set.  But a variety of estimates show that the rise in temperature can have contributed no more than 10% to the increase in CO2 concentration.  That is consistent with the ten lines of evidence that show conclusively that the recent increase in CO2 concentration was driven by anthropogenic emissions.  Disagreeing on this point is intellectually as unsuportable, given the evidence, as geocentrism.

    From the fact that the vast majority of the increase in CO2 over the 20th century was anthropogenic in origin, it follows that the strong correlation between CO2 forcing and temperature, and the statistically significant regression demonstrate a major impact of CO2 on GMST.

    Moderator Response:

    [PS] Also should note (amplified in Tom's last link) that rising ocean temperature releases CO2 over long term (with ocean mixing). In short term ocean is net absorber of CO2 not a source. See Tom's last link for evidence.

  29. Trump and the GOP may be trying to kneecap climate research

    john warner - You have shown a great love of very exact numbers, but have not IMO demonstrated an understanding of the science. 

    For but one example: "I statistically proved that the earth’s air temperature determines the growth rate of carbon dioxide in the air" - CO2 levels over the last half million years of Earths history varied between ~190 to ~280ppm over the glacial cycle, with a temperature response of perhaps 10-15ppm per degree C global temperature change. Yet over the last 100 years with about 1C in global temperature change there has been a rise in CO2 of over 100ppm, more than 6X the thermal response. And that is without looking at the isotopic evidence, increasing ocean CO2 (your claim would seem to require decreasing levels there as CO2 moved to the atmosphere), or our excellent knowledge of just how much carbon we've burned since the Industrial Revolution. Your assertion of temperatures forcing CO2 rise is simply incorrect - it's human action.

    I would suggest that instead of pulling data from the most convenient internet sources and running a calculator, producing numbers with no attention to significant digits, that you instead look into the actual science behind our understanding of climage science - The Discovery of Global Warming by S. Weart would be an excellent starting point for you. 

  30. Trump and the GOP may be trying to kneecap climate research

    John warner, you would clarify things enormously

    (a) if you specified which part of air temperature you are referring to. Stratosphere?  Upper troposphere?  Mid-troposphere?

    (b) if you discussed how your idea of rising planetary temperature (as cause of CO2 rise by out-gassing from the oceans) does differ from the similar ideas of Murray Salby et alii.   [Perhaps you are unaware that Salby's ideas have already been thoroughly debunked.]

    (c) if you specified the actual mechanism/s by which the past century's rapid global warming occurs [in the alleged absence of CO2 greenhouse effect].   So far, you have failed to do so.

    (d) if you indicated how the well-understood and well-measured greenhouse effect of CO2 comes (in your eyes) to be null and void.

     

    There is a very real problem here - since the world is a real physical entity, and not an abstract mathematical construct.   John warner, you need to need to address the physical realities.

  31. One Planet Only Forever at 08:00 AM on 5 December 2016
    Justin Trudeau approves two big oil sands pipeline expansions

    Andy Skuce, your comment@20 includes the following statement in the quote from Jason MacLean's counterpoint "Models of the social cost of carbon depend on modellers’ assumptions, including how much to discount future damages."

    It is very important to make sure that such thinking is limited to setting a price in an attempt to stop something that needs to be stopped (not just slowed). It cannot be allowed to be used to excuse the damage that is being done by the activity. Paying a price does not make such an activity acceptable.

    It is unacceptable for anyone to believe it is acceptable to calculate the costs being created that future generations of humanity (or other current day members of humanity) have to deal with and compare that cost to the reduced wealth and opportunity for those people if they had to stop creating trouble others have to deal with. It is even less than unacceptable, bordering on criminally insane, to deliberately "discount" the estimated impact others have to suffer or deal with, especially when those evaluations may miss major impacts.

    A business investor who will gain any benefit and suffer any and all impacts and consequences of their investment choice/gamble can use that method to compare 'their options for action that they will solely suffer any consequences of'. However, that type of thinking is irrelevant when humans other than the ones benefiting will be potentially suffering some consequences.

    It is simply unacceptable for a portion of any generation of humanity to benefit from an activity that can be understood to be creating costs or challenges or limitations or damages or risk of damage that other humans have to deal with, particularly future humans who have no voice today. That should be repeated at the start of any discussion of how this type of problem will be addressed, openly admitting the unacceptability of perceptions and activities that have developed.

    In a nut-shell, it is common sense that it is nonsense to claim that developed economies need to be protected from the changes and undoing that are required by better understanding of the unacceptability of what got away with developing popularity and profitability.

  32. Trump and the GOP may be trying to kneecap climate research

    Tom Curtis @ 15 I am working on a response. Here are two things to consider in the mean time. Adding ocean and land absorption of heat diminishes the role of carbon dioxide when your consider air, land and oceah heat versus only air heat. You logically increase the role of natural heating forces. Second, if you misspecify the cause effect relationship between Temperature and CO2 growth you get inexpected public policy implications. As you can see I have already done the calculations and the y axis intercept is crucial for interpreting the results.

    Since you did not cite the sources I have to gather my own facts. Paste the IP address for NASA’s 2010 Earth Energy Budget into IP address for your Browser. Paste the IP address for the complete satellite temperature record from 1979 to 2016. Scroll down to the bottom of the page. Under Global and in the Trend row notice 0.12. This is the temperature trend. 0.12 degrees Kelvin per decade This is also 0.012 degrees Kelvin per year. Just a bonus note before we proceed. Multiply 0.012 times 37 years. This informs us that conditional mean temperature around which the earth’s average annual global air temperature varies has increased 0.444 degrees Kelvin between 1979 and 2016. My argument is that the earth’s air temperature is increasing but carbon dioxide in the air is not the cause.

    You said the increase in the earth’s air temperature is only 1% of the global temperature effect. 0.012 degrees per year is the only defensible metric of the increase in the earth’s air temperature. Dividing 0.012oK/yr by 0.01 yields 1.2oK/yr. Your statement translated into reality is that for a representative one square meter of air at the elevation of one kilometer the average annual global air temperature increases 0.012oK/yr. The air equivalent increase in kinetic energy in the ocean is 1.128oK/yr. And I assume the other 5% is land, 0.06oK/yr. The earth’s surface air radiates at 358.2 watts per square meter. Google the Stefan-Boltzmann Law calculator and enter 1.0 for A and e. How much does the rate of energy absorption have to increase to maintain the increased land and ocean temperature measured in terms of our representative air. Add 1.188oK/yr to 281.92oK and enter 283.108 for T. Enter x for P and click Calculate x. P =364.24335wpsm Subtract 358.2wpsm. The change in Radiation Power per area absorbed by the surface is 6.04335wpsm.

    Now look at the 2010 NASA Earth Energy Budget. Notice net absorbed by surface, 0.6wpwm. And there is more. The Earth Energy Budget does not reconcile. Therefore, change net absorbed to 0.5wpsm, incoming solar radiation to 340.3wpsm and emitted by surface to 398.3wpsm. 6.04335wpsm exceeds 0.5wpsm by more than 12 times. To find the correct values add 0.012oK/yr to 281.92oK, enter 281.932 into the Stefan-Boltzmann Law calculator for T and x for P. Click Calculate x. P equals 358.2288408wpsm. Add 0.5wpsm and enter 358.7288408wpsm for P and x for T. Click calculate x. T equals 282.0303256oK. Subtract 281.92oK. 0.110325609oK/yr is the net absorbed kinetic energy by air, land and ocean. 0.012/0.110325609=0.108768944 The annual air temperature increase is 10.9% of the global temperature effect. 1-0.108768944=0.891231056 The annual air temperature increase equivalent to the kinetic energy absorbed by land and ocean is 89.1% of the global temperature effect. The ocean is 84.6% of the global temperature effect. The land is 4.5% of the global temperature effect.

    I calculated that carbon dioxide’s annual contribution to temperature is 0.0029oK/yr. 0.0029oK/yr divided by the current trend 0.012oK/yr is only 24.17%. In terms of the last 4.75 years it is only 2.76%, 0.013775oK/0.5oK=0.02755. How low can you go! Now that you have forced me to calculate the annual temperature effect it is only 2.63%, 0.0029oK/yr divided by/0.110325609oK/yr=0.0263.

    I statistically proved that the earth’s air temperature determines the growth rate of carbon dioxide in the air by regressing annual changes in carbon dioxide against channel 5 AMSU annual global air temperature anomalies between 1979 and 2011. The equation is dC=1.70+1.94*T. r=0.76434 r squared = 58.42% This equation estimates that if the temperature anomaly is plus 0.5 degrees Celsius the increase in carbon dioxide for that year will be 2.67 parts per million. Mis-specifying cause and effect is an intellectually dishonest trick to deceive the technically challenged. But if the Global Warming Believers want to insist that the direction of cause and effect is the other way around I can do that also. The equation is T=-0.514+0.302*dC r=0.7643492 r squared = 58.42% Both equations have the same level of attained statistical significance but only the first equation has any correspondence with reality. The mis-specified equation infers that in reality the earth's air temperature anomaly decreases 0.514 degrees per year unless there is a 1.7 part per million increase in carbon dioxide per year. In fact the coefficient overestimates the effect of carbon dioxide on temperature by 37.67 times. The average annual temperature at which the earth’s air radiates to space actually increased 0.4393 degrees Celsius between 1979 and 2011. Since carbon dioxide increased 54.8ppm the temperature anomaly according to the mis-specified equation should have increased 16.5496 degrees Celsius. 0.302*54.8=16.5496 degrees Celsius 16.5496/0.4393=37.67 This is a textbook perfect example that the public policy inference from a mis-specified equation of reality might be different than you expected. For example between 1979 and 2011 the carbon dioxide concentration increased 1.702 parts per million per year. If you plug 1.702ppm of carbon dioxide per year into the mis-specified equation the answer is 0.0 degrees Celsius increase in the earth’s annual air temperature anomaly. The Public Policy Inference is that you can increase carbon dioxide 1.7 ppm per year forever and never increase the earth's average annual global air temperature. The point is that if you try to use phony science to deceive, somebody like me can use your mis-specification of reality to draw a public policy inference that is not what you expected. All you have to know is that since 1979 the earth's average annual global air temperature has increased 0.80 degrees Fahrenheit and this was not caused by carbon dioxide.

    Moderator Response:

    [PS] This is a naive approach considering only one line of evidence. Please see "CO2 lags temperature", "Warming causes CO2 rise" and "CO2 rise is natural". Comments should go there.

  33. Dear Mr President-elect: a message from across the Pond

    Just a second point in response to feedback regarding ice ages. Yes they would present problems due to ice sheets gradually spreading over northern continents over many tens of thousands of years (although many areas that would be affected are at present sparsely populated). However, there's something else to think about. Sea level fall. During the last glaciation, sea-levels fell by approximately 125 metres and remained around that lowstand for many thousands of years - long enough for the continental shelves of the world to - in part at least - become fertile plains. Look up Doggerland, as but one example - where people lived, hunted and forage and now the sea-bed of the North Sea.

  34. Climate change could push risk of ‘megadrought’ to 99% in American southwest

    Some time ago, I was encouraged by a poster on Skeptical Science to look at a climate modeling program that was simple enough to run on a P.C., and originated at some university in Australia. I pointed out a couple of glitches in the displays but it looked like an interesting and useful project. If you ran it, a predicted climate change consequence that was imminent enough to strike within my lifetime was the desetification of the American Southwest.

    But I have now forgotten the University and the name of this program. Can anyone remind me?

    Curiousd

  35. Trump and the GOP may be trying to kneecap climate research

    John warner @13, you give the impression you have misunderstood the importance of climate being assessed over a 30 year period.

    You have implied that a 30 year period means that [any] climate change can therefore only be assessed retrospectively 3.33 times per century - and that this somehow "reinforces the point" you were trying to make. (Your point, whatever it was, has become lost in a jungle of words and semantic confusions. Best if you concisely restate the point you wish to make!)

    In practice, John warner, it is perfectly acceptable to assess climate changes over rolling 30 year periods (i.e. overlapping periods), if you wish to do so. Which may (or may not?) castrate your unexplained point.

  36. Water vapor is the most powerful greenhouse gas

    I have read through most of the SkS posts, but I have seen no mention of the very limited bandwidth of the CO2 absorption spectrum in the region of 250 K radiation. It seems that CO2 will be transparent to most of the outward radiation from water at the top of the troposphere. Comment, please.

  37. Trump and the GOP may be trying to kneecap climate research

    john warner @various:

    Using the Law Dome combined CO2 data plus the BEST Land Ocean Temperature Index over the period of their overlap (1850-2013), we find a correlation between CO2 forcing (calculated as 5.35 x ln(CO2current/CO2initial)) of 0.900, an R-squared of 0.811, with a linear regression of 0.58 +/- 0.044 C/(W/m^2).  This is the scatter plot of the data:

    You may object that because of the infilled values in the Law Dome data set, that artificially inflates the correlation.  Using just the raw Law Dome data (with no Cape Grim), however, we achieve a correlation of 0.711, and R-squared of 0.505, and a regression of 0.59 +/- 0.164 C/(W/m^2).  Using forcings calculated from the Mauna Loa montly values from March 1958 to July 2016, the correlation is 0.854, the R-squared is 0.729, and the linear regression is 0.62 +/- 0.28 C/(W/m^2).

    In short, it is a robust feature of the data that the temperature response to CO2 forcing is approximately 0.6 C/(W/m^2).  That translates to a Transient Climate Response of approximately 2.2 C per doubling of CO2.  

    As the Earth's energy imbalance is currently, approximately 0.7 W/m^2.  That means we would currently expect a further increase of Global Mean Surface Temperature of up to 0.4 C based on CO2 emissions to date.  Taking the Law Dome data, the increase of 1.7 W/m^2 has left 0.7 W/m^2 that has yet to contribute to the Earth's warming, resulting in a temperature increase of 0.87 C to be explained by the remaining 1 W/m^2.  That yields a back of the envelope estimate of the Equilibrium Climate Sensitivity of 0.87 C/(W/m^2) or 3.2 C per doubling of CO2 based on CO2 and temperature data alone.

    Against this robust evidence, you can only provide evidence from a truncated data set, with no estimates of the uncertainties, and employing an absurd estimate of future increase in CO2 forcing with Business As Usual which assumes a linear rate of increase from non-linear data.

  38. Fires and drought cook Tennessee - a state represented by climate deniers

    Nigelj,

    Keep in mind that the majority of scientific opinion is towards more damage from AGW than the IPCC reports.  The IPCC reports the minimum consensus that scientists agree on.  Most scientists think there will be more damage than reported by the IPCC.

    For example, this Real Climate post reviews expert opinion on sea level rise and compares it to the IPCC report.  The majority of scientists think sea level rise will exceed the IPCC projections.  If we are going to consider the "saner" skeptical reports we need to also cover Hansen's projection of 5 meters of sea level rise by 2100. Hansen has more scientific support than the skeptical reports.

    I teach High School (and college) in the USA.  If you want schools to cover AGW you must accept that probably half of Science teachers do not understand the problem and will think the sketical arguments make sense.  We used to have an AP Physics teacher (the highest level of Physics in High School) who taught his students that AGW could not occur because the absorbtion spectrum was saturated.  He is no longer at our school but teaches at another school nearby.

  39. Trump and the GOP may be trying to kneecap climate research

    john warner@13,

    Please note that dana1981 is a man. Everyone on this site knows Dana because of his invaluable contributions as science communicator and scientist with growing resume of peer reviewed publications.

    If you don't know Dana yet, you can easily get to know him by looking here or his numerous photos. And please avoid the pitfalls of English language & never again refer to him as "she".

  40. 2016 SkS Weekly Climate Change & Global Warming News Roundup #49

    Trump keeps saying he wants to make America great again. Going back to coal wont make America great again. This is yesterdays technology.

    Why doesn't Trump make America a leader in green technology and efforts to combat climate change? That would be making America great again in terms of global perceptions, climate change, and even energy economics. Right now Trump is at risk of being remembered as yesterdays man, who was out of touch with global realities.

    You help blue collar workers by really helping them with meaningful assistance,  and taking them along with a changing world. You dont help them by going back to dubious policies from the past.

  41. Fires and drought cook Tennessee - a state represented by climate deniers

    Topal @5, you want to know where is the evidence we are changing the climate? Why dont you do a google search or read the IPCC reports or articles on this website. You are presumably familiar with search engines. Its just annoying that you expect people to repeat all this on this comments box and waste their time when the information is already out there and easy to find.

    Your post was also pure rhetorical questions. This becomes annoying when there are just purely rhetorical questions. This is not a teacher / student website. This is a discussion, news posting and debate forum like many others, and Im interested in peoples opinions or genuine questions if they dont know something and have already tried google. I ask a few myself.

  42. Fires and drought cook Tennessee - a state represented by climate deniers

    JW Rebel @2. I hear you and you may ultimately be right. However I still think theres a case for examining both the IPCC conclusions and the saner sceptical positions.  We are having this educational debate in my country on how to strike the right balance between rote learning, creative thought, and critical analysis. Im convinced it needs a mixture of all three. Its not an "either / or" thing.

    This is where I was coming from, and its hard to see why some student critical analysis should not be applied to the big issuess of the day. However it would have to be in the final year of school as younger students can only really absorb basic information. Critical analysis would bamboozle them.

    And special emphasis needs to be placed on the evidence based approach of mainstream science as opposed to the less rigorous thinking around something like "creationism" and the sophistry or appeals to emotion you get in some climate denialist positions.

  43. Fires and drought cook Tennessee - a state represented by climate deniers

    topal@5,

    This is just a trivial (or maybe sarcastic on your part?) question on this site. Just look for any argument among 150+ argument in the myth debunking "thermometer" on the top left. Or look at this post for a comprehensive summary of AGW indicators. That's why 97% of people who have the undestanding of these facts (incl. climate scientists) do accepts them.

  44. Trump and the GOP may be trying to kneecap climate research

    Ubrew 12 @ 10 Thank you for your response to my comment at 2 which I admit was incomplete.To be ontopic I was responding to the dana 1981 post we were commenting under. In paragraph 8 she [mod. - he] injected that 2014,2015, and 2016 were record breaking temperature years in an attempt to expose Bob Walker as a global warming denier. I was only pointing out that it was natural and not man-made forces that were the scienfific explanation for the 4.75 year increase. I did not have the time to document how I calculated the theoretical scientific effect that increases in carbon dioxide has on the air temperature, (0.0029oK)/yr. I presented the documentation in comment 9 the next day. (4.75yr)*(0.0029oK)/yr = (0.013775oK)  (0.05oK/0.013775oK) = (36.3) I subtracted 1 for carbon dioxide and left 35 for nature.

    The IPCC had a problem with publishing the TAR Climate Change 2001: The Scientific Basis. The Framework Convention in 1992 defined climate change to include only changes as a result of human activity. [mod. - The roles and purposes of the IPCC and the UNFCCC are different. They're respective definitions have no relevance.] I cited footnote 1 to see if Skeptical Science would verify my explanation of what it meant. The, "This is why" beginning to my statement refers to the discrepency in the magnitudes of the man-made and natural causes that I illlustrating in comment 2.. "This is why the IPCC scientists insisted on this disclaimer that human activity caused climate change and redefined climate change to include natural variability." [mod. - Again, wrong. And note that this is a very serious accusation that we do not take lightly here at SkS.] The moderator did not bother to read footnote 1, crossed out my statememt and gave me a Warning. Then she accused me of fraud and sloganneering. Then a mini-lecture that to prove science wrong I had to cite and quote dana 1981's Post. [moderation complaint snipped.] [...] [Accusations of dishonesty snipped]I wasn't trying to prove science was wrong. I was trying to show that dana 1981 was dishonestly disinforming Skeptical Science viewers that 3 consequtive years of record temperatures was scientific proof that human activity was the cause of climate change.. Then a note that you can't make claims of climate change under IPCC rules before you have the average temperature for a period of 30 years. Which reinforces the point I was trying to make. She [mod. - he] concludes with, that no climate scientist after FAR ever claimed temperatures would keep rising year after year. [mod. - No climate scientists has ever claimed that temperature would be warmer year after year] That is the acceptance that natural forces cause the air temperature to change and that the IPCC had to change the definition of climate change. [mod. - Nope. You're naively trying to attribute internal variation with attribution.] Your graph is a good example of how quickly simple facts reveal the defenders of the indefencible. 

    john warner @ 7 does not make any sense because the moderator deleted the top half. [mod. - For clear stated reasons.] Enthymeme is a debating trick to get a misinformed person to supply a false first premise for an argument to get him to draw the wrong conclusion. I was commenting on dana 1981's post but the moderator said, offtopic gets deleted. [moderation complaint snipped] I self idenitfied as a, "CAGW critic" and said that unlike other deniers I believe the air temperature is increasing. The whole sentence gets deleted because she did not like acronym CAGW. [mod. - False. That's not what was stated to you.] The last part of my deleted statement was. "...the incorrect unspoken premise is that science has proved man-made carbon dioxide is the cause." Now 7 makes sense. Essentially, I said if you have the proof show it to me now. Nobody at Skeptical Science has put up the proof yet. You can read the rest  of the comment. The moderator snips the url address, says were not your advertising firm and calls me bubba. [moderation complaint snipped] My son set up Moraleconomist's in 2011. Nobody ever visited the site. No comments. No recommends. I deleted 5 brief posts and published the list of sources on November 28, 2016 for my argument on Skeptical Science. I did not know that I was allowed to submit it as a comment. Apparently my assumption was not too far off. See last Moderator Response. But I did submit my list as comment 9. Further more the moderator agrees with me that sub decadal (2014-2016) is not long enough period to prove climate change. Then she [mod. - he] says [moderation complaint snipped] as an acceptable comment, I can't formulate my own argument or the already discredited denier skeptical science reports (strawmen), but only global warming consensus science reports as evidence against the global warming concensus science. Talk about defining the bounds of an argument to get the conclusion you are assuming.

    I am going to open a new comment to respond to the moderator at 9. I only chose 4.7 years to be on topic for dana 1981's Post. My real intent for the scientific reasoning power contained in 9 is to debunk the claim that real science has been used to prove that man-made carbon dioxide causes the earth's air temperature to increase. The Moderator's comments alone provide more than  enough instances to inject real science to debunk the anthropogenic global warming theory. I am a teacher, agreeing with is not enough. You have to know why you are agreeing with me. Even before I make the argument, Ubrew12 already sees enough scientific fire power sitting on the battle field to win and he is scolding me for not using it wisely. Ubrew already knows why he agrees with me and if I make a mistake he wiil be the first to point it out.

     [moderation complaints snipped]

    Moderator Response:

    [RH] You're going to have to try a little harder to focus on specific points on specific science and leave out all the rambling rhetoric. If you can manage that I think you'll find SkS to be a good place to have a substantive discussion.

    [PS] You also cannot have a reasonable discussion about truth when you constantly misrepresent what the science actually says and make unsubstatiated accusations about people involved. Read the science at source not some misrepresentation constructed by some denier source. Quote the original sources, provide links to your data and above all take the time to understand what the science says instead of what you would imagine it does. You have yet to provide any evidence that any climate scientist ever asserted that that temperature would rise year on year. To me, this implies that you have never bothered to investigate a modern (post 1970) understanding of climate preferring an imaginary construct that you can disagree with instead.

  45. Fires and drought cook Tennessee - a state represented by climate deniers

    "Was this fire caused by climate change? The answer is yes. "

    Simple as that! And then ask: Is this climate change caused by human activity?

    Where is the evidence?

  46. Fires and drought cook Tennessee - a state represented by climate deniers

    It is a bit like allowing the teaching of creationism.  Yes, let it be taught but in the next or the same lesson, take the kids to a carbon dating laboratory and have the head honcho in the lab explain how it is done and what the results say about a minimal estimate of the age of the earth (50,000 years just from carbon dating).  Then let him explain how longer term dating is done with other isotopes and to what extent this provides a much longer minimal estamate of the age of the earth.  nothing wrong with letting these alternative world views be taught but then take off the kid gloves and give the kids the true story and the evidence on which the scientists base their world view.  A great teaching oportunity.

  47. It's not bad

    Winter deaths will decline as temperatures warm (HPA 2007)

    may need an update partly because the link no longer works. You might want to use refs 4 through 8 from http://www.nature.com/nclimate/journal/v4/n3/full/nclimate2121.html

    and you may want to note that the above link disputes this for England and Wales.

  48. Fires and drought cook Tennessee - a state represented by climate deniers

    @1 nigelj - I know that myself and other astronomers that teach college general education-level astro courses, when we touch on planetary atmospheres and greenhouse gases we include AGW in our courses. It's nice that the textbook (Bennett et al.) also touches on it explicitly.

    A lot of us consider it an obligation! And I do expose as I go through it each time the skeptics use a blatant falsehood.

    But having been exposed to that earlier, for e.g. in a high school earth science course, I imagine would be better, and tougher to achieve :(

  49. Climate Change Cluedo: Anthropogenic CO2

    jifqam,

    I think it might be useful to to emphasis the point made by michael sweet @65 paragraph 2.

    The graphic from Gruber et al (2009) 'Oceanic sources, sinks, and transport of atmospheric CO2' presented @64 shows various annual CO2 flux for various ocean regions. These are net fluxes per region. Add them up and they total to about 2.2Pg(C) flux into the ocean and 0.5Pg(C) out of the ocean. The paper tells us global net figure includes " an uptake flux of anthropogenic carbon of 2.2 ± 0.3 Pg C/y(inversion) and 1.9 ± 0.7 Pg C/y(pCO2-climatology)."  This represents about a quarter of our anthropogenic CO2 emissions which today total about 10Pg(C)/year and so it is our anthropogenic emissions that are truly "the largest source of CO2 of the planet." Your interpretation of the Gruber et al graphic is based on a flux from the Pacific of just 0.3Pg(C)/year.

    Yet the carbon cycle shows the gross fluxes to be far higher than the net fluxes.  This is not controversial.

    Carbon cycle

    Annually, the gross flux is about 92Pg(C) flux into the ocean and 90Pg(C) out of the ocean. Any discussion of Δ18O must take account of these gross fluxes.

  50. Dear Mr President-elect: a message from across the Pond

    The main point Nigel - that most of us have mentioned - does not involve the next tens of thousands of years. Substantial sea level rise comes a lot quicker. Whatever follows that just rearranges the mess.

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