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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 26701 to 26750:

  1. 2015 SkS Weekly Digest #43

    I am intrigued at this discussion of limiting global warming as it is contrary to the understanding of this physical scientist of what has happened and what will happen in the future. Fossil fuel emissions have been the major contribution to the carbon dioxide level in the atmosphere rising to 400 mpm with an associated absorption in the oceans. This has created, in Hansen's terms, a blanket around the Earth which has caused the atmospheric warming by reducing the radiation out into space. This warming process will continue even if the rate of emissions is greatly reduced. Absorption of carbon dioxide will also tend to reduce the blanket effect, so the rate of increase in atmospheric warming but it will still increase. It is an irreversible process in a time scale relevant to industrial civilization. in addition, while it is not receiving the attention that is warranted, ocean acidification and warming is also an irreversible process that is under way. 

  2. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Chuck Wiese - Francis and Vavrus are under exactly zero responsibility to indulge the complaints of someone who hasn't done the work, who isn't willing to write a Comment or a dissenting peer-reviewed article. 

    You have been disagreeing with recent research with (unclear) references to textbooks from the 1950's - has it not  occurred to you that our knowledge of various phenomena may have improved in the interim? Or that recent papers are discussing recent developments, developments that may not have been covered back when you received your training? I might as well argue that plate tectonics is absurd, based on a textbook from the 1920's. 

    If you indeed think that Francis and Vavrus (not to mention the many authors of recent papers discussing these works without rejecting them) are completely and in an elementary fashion wrong, do the work. Otherwise, regardless of the accuracy of your assertions, you will be considered a crank whose views lack support. 

    On a related note - the opening post was written with direct reference to peer-reviewed literature, which is all the support required; it's supported by that work. Your repeated claims that you, because of your background and training, know better consist of an Argument from Authority - and without actual data, theory, references, or work pointing out where those papers have erred, that's a logical fallacy. 

  3. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Chuck Wiese @82, John Mason in fact provides a reference for his claims in the discussion he had with Jennifer Francis, and in the paper you are referred to for further reading (Francis and Vargus, 2012).  That is, as the Sun has cooled (very slightly) the Earth has warmed. That might be enough for some, but if any key point of the article were challenged, we would expect Mason to provide appropriate data, explicate the reasoning behind the claim and/or provide a suitable reference if no other commentor was able to do so before hand. That is, we would expect the same standard we apply to you, and that you apply to Jennifer Francis, but fail of in your own behaviour.

    In fact, you have challenged a key point, but the reference for that point is already given in the article (ie, Francis and Vargus (2012)) and the relevant section has been quoted by commentors above.  You yourself have identified Francis as making the claim, so it is not in dispute that Mason has a suitable reference for his claims.  Nor would it be in dispute that you had a suitable reference for yours if you would only quote the relevant passages from the difficult to obtain references you use, something you steadfastly refuse to do.

    With regard to the deleted posts, I believe they were deleted due to being off topic, contrary to both the comments policy and the direction from the moderator @73 above, a direction you have chosen to ignore.  It is unfortunate that your rejection of the moderators claim @59 above that you "...expressed a rejection of basic greenhouse theory" has been deleted, but that claim was made before the indication of a strict application of the rule requiring that you remain on topic.  It is still open to you to rebut the moderator's claims at one of the SkS posts that discuss basic greenhouse physics.  No comment of yours was deleted for being off topic prior to that notice.  Furrther, the moderator making the claim @59 has not deleted any of your posts, and some miscommunication may have been involved.

    By all means, however, become yet another denier who interprets their inability to comply with the simple requirements for posting at SkS as censorship of their views.  As the views expressed are not a grounds for moderation - that claim is and has always been false.  The failure to comply, however, seems to indicate that deniers are unable to express their views in a clear, evidence based manner while remaining on topic (ie, not wondering of into some form or another of a Gish Gallop).  That does not speak well for the coherence, or emperical basis of those denier views.

    Moderator Response:

    [JH] Wiese's most recent post was a moderation complaint and was deleted. He had been advised to review the SkS Comments Policy but apparently chose not to do so. 

  4. It's cooling

    ARRS

    You don't define what you mean by deep ocean. 

    If you mean the true Abyssal ocean, below 2000 meters then there has seemingly been little warming.

    If you mean the ocean down to 2000 meters there has been warming And it is not an extrapolation of anything. It is a measurement using the ARGO system.

  5. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Chuck Wiese @80 sets up a hypocritical standard such that:

    "If anyone who had anything to do with this work diasagrees with my assertions, they owe it to the public to explain them and defend. To claim they disagree without an explanation is not acceptable."

    But he insists it is not incumbent on him to defend and explain his assertions.  Indeed, as he claims his views are based on standard (but out of print, and unavailable second hand) textbooks, it should be very easy for him to defend and explain his views by showing the derivation of the relevant formula, or failing that, quoting the textbooks for their derivation.

    Indeed, not even that is being asked of him.  We would be content if he simply listed the scientific papers in which the result was first derived (that being far more likely to be accessible than out of print, and unavailable second hand text books).  Most recently MA Rodger @77 has reduced the request on his behalf to a mere listing of the formula numbers in the text books that purportedly contain the formula.  Even that request is, apparently, to much a demand on Chuck Wiese in defense of his views.

    Yet he thinks it is incumbent on atmospheric scientists to devote time to defending their views against any internet crank that has the wit to send them an email.

    That is not how science works.  Any such communication from a scientist is, and must always be only a courtesy.  If it is not, you place a blank check on scientists time such that internet pseudo-scientists can at will permanently prevent them pursuing further research, or even their mandated teaching requirements (if university based).  Rather, the way science works is that, if you think there is a problem with a paper, you pursue it through (ideally) peer reviewed responses - the step Chuck Wiese refuses to make.

  6. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Moderator: In response to your most recent post, whether there is a desire by me to publish such a paper is irrelevant. What is relevant is that I have personally written to both of these authors and asked them to explain their claims and demonstrate where I could be wrong. Vavrus never responded and Francis offered no other explanation of why my assertion is incorrect, but only and without any explanation insisted she is correct.

    This is not how anyone should be approaching problems in science. Regardless if a paper is reviewed and accepted for publication as this one was, the reviewers may very well not have been versed in atmospheric scienvce as they should be. In addition, the authors have a responsibility to defend their own work and answer questions if they are approached directly as I have approached them. Their failure to do this is surely an indication the isues I raised are valid. That is a reasonable assertion until they can state they addressed my concerns in the review process, they are wrong and give a reference or explanation.

    If anyone who had anything to do with this work diasagrees with my assertions, they owe it to the public to explain them and defend. To claim they disagree without an explanation is not acceptable. Ms. Francis is employed by Rutgers University and Vavrus by the Unviersity of Wisconsin and both receive funding from taxpayers. 

    Chuck Wiese

    Meteorologist

    Moderator Response:

    [JH] You are now skating on the thin ice of excessive repetition which is prohibited by the SkS Comments Policy.

    Please note that posting comments here at SkS is a privilege, not a right.  This privilege can be rescinded if the posting individual treats adherence to the Comments Policy as optional, rather than the mandatory condition of participating in this online forum.

    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.

    [RH] The way people approach the problems of science is through publishing research. You've thus far been unable to provide supporting research for your claims, and contrary to how people actually approach the problems of science, you've only made claims that you understand this stuff while no one else does. It's quite obvious that you are the one who does not adhere to a scientific approach.

    In terms of what is "owed to the public," the only thing that is owed has already been delivered. Dr. Francis has published her work in the peer reviewed literature, as scientists are expected to do. If you have a challenge to the conclusions of her research it is your responsibility to submit those to peer review. Apparently this is something you're unwilling or incapable of doing.

  7. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Oops, I should have said arctic air would 0.24C warmer within a decade.

    It would (simplistically) be 2.4C warmer within a century; I imagine, however, that arctic amplification is closely associated with the loss of ice albedo, and that given that observation and IPCC projection indicate a summer ice free arctic by mid 21st century, the amplification will slow.

    BTW, in all of the above "warmer" refers "warmer than today". If you assume that the temperate region (Texas, in my example) warms at the global average then you need to half the difference. 

  8. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Re: @76

    The jet stream, as I understand it, acts a barrier that inhibits air currents from crossing it. If the meanders in it increase, then air currents can progress further south (or north) before encountering it. This allows cold air from the arctic to progress further south in the places where the jetstream meanders to the south, and warm air from temperate regions to progress further north where the jetstream meanders to the north. Furthermore since the jetstream acts a barrier to these air masses mixing, the cold air will remain cold since it will not come into contact with warm air.

    I do, however take your point that arctic amplification will make arctic temperatures warmer than they were in the past. The trend the atmospheric temperatures over the last 15 years is about +0.12 degC/dec. Let us (for the sake of argument) assume that arctic temperatures are double that rate. However comparing temperatures:

    Average March temperature in Nuuk between -7 and -11 C

    Average March temperature in Austin Texas between +22 and +10C

    would suggest that the fact that the arctic air would be slightly (0.24C) warmer than it would otherwise have been, is dwarfed by the fact that the larger meanders of the jet stream allow the cold (albeit slightly less cold) air penetrate further south.

  9. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Chuck Weise Meteorologist @75.

    Thank you so much for confirming that the equation I presented @73 is not the equation you are talking about. Given the adverse circumstance here, I do struggle to get to grips with this equation and its derivation. In that regard, can you confirm that the your equation is of the form presented @74. And also concerning it's derivation, the references you quoted @35 as your sources of this equation are:-

    " "Dynamic Meteorology and Weather Forecasting", authors Godske,Bergeron, Bjerknes and Bundgaard. American Meteorological Society Volume 605, 1957, Chapter 11, Hydrodynamics of the Atmosphere. ... (and)  " Dynamical and Physical Meteorology" Haltiner and Martin Chapter 12, Horizontal Frictionless Flow, 1957 ISBN 57-8005."

    While you appear reluctant to venture an explanation for the derivation of this equation, likely because "this topic is long, complex and math intensive" in your eyes, such reference books as these do tend to number all the equations they present. So it would be simplicity itself to provide the equation number of this formula within these two chapters. This would be most helpful.

  10. Interview with Gavin Schmidt

    The impact of another issue on feasible policies to tackle climate change needs to be taken into account in discussing what is likely to happen. Every one, including the climatologists, are very dependent on the services provided by the exisitng infrastructure (from the satellites through a range, including being able to fly round the globe, to the computera and instruments). The operation and maintenance of this infrastructure as it ages entails the irreversible useage of a wide range of irreplaceable natural resources. The inevitable decline in these services will have a significant impact on what can be done to cope with climate change. Coping with climate change is a predicament for society. But coping with the loss of services is another one that makes the fromer more difficult.

  11. It's cooling

    A Real Skeptic would note that if you wish to test a theory, you test whether the data falls within the uncertainty range of the prediction.  If you did so for the last 18 years to date (Sept 2015) on GISTEMP, you would find a trend of 0.118 +/- 0.104 C/decade, giving an upper bound (0.222 C/decade) that includes the model predictions but a lower bound that excludes the possibility of a zero or negative trend.  Ergo the model predictions have not been falsified.  

    It might be claimed that the HadCRUT4 trend (0.079 +/- 0.105 C/decade) falsifies the model predictions, but a Real Skeptic would realize that:

    1)  HadCRUT4 is not a global index, as it excludes the Arctic (plus parts of Africa and Asia), so the correct comparison would be with a HadCRUT4 mask of the model predictions (which I do not have available);

    2)  That cherry picking a year in which annual variations have lifted the temperatures well above the trend variation at the time as the start point (such as 1997 or 1998) distorts the statistics, so that the normal statistical test will generate a excess of false negatives relative to the standard case; and

    3) That even apart from such distortions, 5% of "failed" statistical results will be false negatives (of which 2.5% will be false negatives showing to low a trend).

    Therefore a Real Skeptic would always apply their test across a range of years and compare the resulting PDF to the prediction, rather than just using a small number of cherry picked starting points.  Doing this clearly shows the predictions to have not yet been falsified.

    Finally, a Real Skeptic would know that the shortest period referred to as a climate normal is 20 years, and the typical period is 30 years.  Therefore they would never use less than a 20 year period to test a climate prediction.  They would recognize the attempts to use 15 year periods (three years ago) growing up to 18 years (now, so as to carefully keep 1998 as the start year) represent carefull propaganda rather than actual analysis of the climate trend against the climate prediction.

  12. Climate's changed before

    A Real Skeptic would know, having examined the issues, that Mann Bradley and Hughes 1999 (MBH99), aka, the Hockey Stick, has not been debunked despite strenuous efforts by McIntyre and McKittrick.  Rather, McIntyre and McKittrick have used a statistical measure that calls a straight line plus white noise a Hockey Stick to argue that random noise generates Hockey Sticks in an attempt to debunk MBH99.  

    This is not to say MBH99 is without flaws (many first pointed out by Mann himself in later publications).  Rather, it is a reasonably accurate first attempt to generate a multi proxy paleo temperature index with a calculated uncertainty.  Because it was a first attempt, Mann, Bradely and Hughes had things to learn and made some mistakes, but the mistakes do not undermine the fundamental conclusions.  This is seen by comparing MBH98 to later resonstructions that have eliminated some of those mistakes.  Of those, the PAGES consortium reconstruction has used the most data and robust methods, and hence represents the best global reconstruction over recent times:

    Please note the green dots (ie the PAGES reconstruction) all represent 30 year averages, so that the graph is not smoothed at a different rate for the recent period, yet the 20th century still stands out for the rapidity and magnitude of the temperature rise, not mention the reversal of the long term cooling trend and the magnitude of the final value (1971-2000) which exceeds all others.  There is, of course, a qualification on that final result:

    "Many of the proxy records used in the reconstructions were generated some years ago and end before the year 2000. The reconstruction for North America, Asia and South America do not extend to the 21st century. The instrumental record shows that the last several decades have generally been warmer than previous decades. Therefore, the most recent 30-year period in our analysis (1971-2000) underestimates the actual temperature of the last 30 years."

    (From the PAGES FAQ, my emphasis)

    Finally, it is my instinctive reaction to treat "persuasive names" such as "A Real Skeptic Says" as indicating that the person choosing the name doesn't think their real skepcism will come across without their first telling us their presumed status.  That instinctive reaction is rarely wrong.  So rather than flagging the uncommon skepticism of the person involved, it tends to flag the opposite.  Just a word to the wise.

  13. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Phil and moderator: If you are starting with a warmer source region of arctic as is implied in the Francis paper, ( artcic amplification) the temperature of the airmass must be warmer. This means if it is driven southward to a place like Texas as in your examples, it will arrive warmer than it would if the source region in the arctic was colder to start. Since the argument Francis makes claims you will get persistent "stretched" long waves as a result of this warming, she then claims this will lead to temperature extremes.

    It is implicit from this that the meaning would be equaling or exceeding current climatological extremes. It is pointless to use that phraseology if the expectation is that future cold will not be as cold as today because of the warming. If what she claims is true, we are moving away from extremes, not engaging or exceeding them. But this claim of hers cannot be so if wave amplitude depends upon speed, which the equations make clear. The wave amplitudes must decrease and the troughs of the waves must migrate to higher latitude. This is basic atmospheric science.

    Chuck Wiese

    Meteorologist

    Moderator Response:

    [RH] If this is "basic atmospheric physics" you should be able to present published research that says exactly this. If there's not any published research that states exactly what you're claiming, contradicting Dr. Francis, then there are two possibilities. (a) No one has shown this in the research, and there's an opportunity to publish an important paper, or (b) no one else working in the field agrees with your conclusions. 

    We know from clear, empirical measurements that the arctic is warming faster. So, by your claims, that would result in fewer extreme weather events.

  14. Climate's changed before

    A.R.S.Says @ #498 :

    Alas, you seem to have tied yourself in a knot. Please go back to the issue, and think about it more carefully.

    This website's educational material is there to educate you ~ but you need to approach it calmly & logically.

    (btw, I must commend your sense of humour in choice of your nom-de-plume ~ the abbreviation is priceless.)

    Moderator Response:

    [JH] Inflamatory & off-topic.

  15. It's the sun

    A.R.S.Says @ #1158 :

    Clearly you haven't read the educational material in this section.

    Please do so . . . and then you will see that your expressed ideas are completely without foundation.

    (btw, I must commend your sense of humour in choice of your nom-de-plume ~ the abbreviation is priceless.)

    Moderator Response:

    [JH] Inflamatory & off-topic. 

  16. It's not bad

    A.R.S.Says @ #371 :

    The question here of "good" or "bad" [regarding Global Warming effects] is very straightforward, really! It is viewed from the point of view of the human race (and which largely co-incides with the beneficial aspect to terrestrial & marine lifeforms).

    Worse heatwaves, droughts, floods, and rising sea levels encroaching on land which is heavily settled and/or fertile agricultural. In addition, agricultural scientists point to an overall reduction of staple food production (worsening with each degree of warming).

    Please read and educate yourself, in the appropriate section of this website.

    (btw, I must commend your sense of humour in choice of your nom-de-plume ~ the abbreviation is priceless.)

    Moderator Response:

    [JH] Inflamatory & off-topic.

  17. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Tom: Thanks for correcting MA Rodgers. He is incorrect to claim the equation he found was what I used. His reference is similar to the derivation of the equation of wave speed for an autobarotropic wave, given as

    c= U - BL^2/4pi^2.

    If c is wave speed, U zonal wind speed,  L wave length and B the Rossby parameter, this realtion is then solved for L by setting c equal to zero. The result is what he just wrote, but that is not the maximum amplitude.

    Chuck Wiese

    Meteorologist

  18. There is no consensus

    A.R.S.Says @ #712 :

    To be blunt: the word consensus has a very plain, straightforward meaning in the English language.

    Your expressed "logic" is a complete failure, since you seem unable to connect words and concepts and realities.

    (btw, I must commend your sense of humour in choice of your nom-de-plume ~ the abbreviation is priceless.)

    Moderator Response:

    [JH] Inflamatory & off-topic.

  19. It's cooling

    A.R.S.Says @ #264 :

    Alas, you have got your thoughts into a terrible tangle.

    Please read through the educational material on this website, which will help you gain a scientific understanding of the real situation.

    (btw, I must commend your sense of humour in choice of your nom-de-plume ~ the abbreviation is priceless.)

    Moderator Response:

    [JH] Inflamatory & off-topic.

  20. A Real Sceptic Says at 06:42 AM on 31 October 2015
    It's cooling

    A sceptic does not need to prove that some different or opposite phenomenon is taking place. Sceptics check specific theories. To the extent that observed phenomena matter, it is in whether or not the theory's *predictions* have come true.

    In the case of climate change theory, the predictions are necessarily over a substantial period of time - at least 10 years in virtually all cases. Why? Because the climatologists making the predictions claimed (and still do) that they are working with "climate" as opposed to "weather", and that the former must necessarily relate to averages taken over time (always at least 10 years' smoothing of annual weather data).

    Therefore, for enough new data to "arrive" to determine the climate (without needing to bring in annual data from years that have already happened) we have to wait that long. Thus the most recent predictions we can actually test are at least 10 years old. Or, to put it another way, the "state of the art" of *tested* climate change theory is at least 10 years old (longer for particular varaints of the theory that demand longer averaging times). Everything spoken and written since then is still just *conjecture*.

    The theories that are old enough to test speak of "global average surface air temperatures". Be careful about revisionism here - we sometimes see attempts to update the theory to something that could maybe match current measurements, but every time you check them you will find the originals are about surface air temps.

    The so-called "pause" may or may not amount to slight cooling or slight warming. But the predicitons as made in 2005 and earlier, all predicted very *large* rises by now. They really have been refuted by the pause.

    Attempts to "explain" the pause are all examples of more recent work - to be valid they must produce their own predictions, and we must wait and see (long enough for a true "climate" average to be determined that doesn't depend on annual data already known). Maybe they will succeed (though to even get published they need to be somewhat catastrophic in nature, so unless a catastrophe actually occurs, my prediction is probably not).

    Certainly, deep ocean heating is nothing to do with what was predicted. Does deep ocean heating imply an equivalent conclusion? Well, even if it did, that does not make for a successful prediction. If I predict apples will grow but instead get oranges, I am not a successful fruit predictor!

    Does deep ocean heating mean we should immediately accept a new kind of global warming based only on current data? In other words, is the fact alone support of a new alarmism without the need for successful predictions? Of course not. Like the surface temperature warming before the pause, deep ocean heating has other explainations including random natural fluctuations. 

    Oh and finally, why not check how they know the deep oceans are heating. I think you'll find they don't. It hasn't been measured and is only an extrapolation based on an "overall energy budget" theory which itself has no experimental confirmation as well as being heavily reductionist in nature.

  21. A Real Sceptic Says at 06:20 AM on 31 October 2015
    There is no consensus

    Okay so while a sceptic is mostly interested in checking (and if necessary refuting) new scientific claims, it is reasonable to discuss the "consensus" issue due to its importance to science as a whole.

    Ironically, there is no consensus on the meanings of the terms used to define this consensus. Does it mean a majority? Or just an important and strongly agreed minority? Do voices with authority carry sway, or is it democratic. Does it need to be "overwhelming" and is it, in fact? Is it absolute or is there internal dissent? Which human beings count as scientists? Which institutions act as gatekeepers thereof and what is their motivation?

    Rather than work trough all of these, I will simply ask the reader to consider whether it is healthy that you are being asked to accept the speakers' tacit definitions on these matters, as well as their unstated assumptions. You are being guided toward what is really more of a psychological sensation than any fact-based argument - the sensation of being part of something big and powerful. Maybe a sense of belonging and safety. Maybe moral superiority. Maybe the clarity that comes from being decisively led.

    If the reader is ready to understand their own (and their peers') fralties in such areas, then I do not need to discuss the history of systems of control and subjudication. If not, there's no point getting in to it except to suggest you may wish to begin with the Milgram experiment.

    Instead, I will take a single example, from the current article, of a flagrent manipulation of the meaning of "consensus" and surrounding terms: the 97% pie-chart.

    You thought it said 97% of scientists, right? No. It's 97% of papers. That's right there in the jpeg image itself but you didn't notice it. What else didn't you notice?

    If you read the underlying study, what 97% really agree with is somthing along the lines of "do you agree that (a) humans emit CO2 and (b) that the greenhouse effect is real". Your present author does, and so would be a part of the consensus!

    The trick here is a toxic mix of pedantry and tactical naivety - as so often seen among precotious fifteen-year-olds, but in this case carefully hidden within a typically dull metholodgy section in a paper. It is *pedantically* true that human CO2 plus greenhouse effect implies *probably* *some* human generated warming. But has human generated warming been *shown* to occur? Not implied. Is it problematic? Not implied. Significant? Not implied. Even detectable? Not implied. Nor does the position in the question even imply that there won't be compensating factors or that warming would even be harmful anyway.

    In summary, consensus taken in general is too subject to the frailties of the human condition for any wise person to pay any attention to it. Specific factoids, such as the 97% pie-chart (and there are others) may seem to lend concrete validity, but as soon as you check them you find nothing meaningful, only trickery. 

    Should we accept climate consensus because consensus exists around, say evolution? A real sceptic can answer this easily: the whole point of science is to investigate methodically the questions whose answers are *not* obvious on the surface. No scientist would ever be so intellectually lazy as to reason that since the climate consensus "sort-of looks like" the Darwinian consensus, that their underlying scientific validities should also match.

    Climate consensus is much more like a rainbow. Amazing to look at; vast and magical. But how many times do you have to check for that pot of gold before you accept there's really *nothing there at all*!

  22. 2015: A Very Bad Year for the Global Warming Policy Foundation

    Also....this non sequitur statement:

    What the data is showing us is that over the past 15 years or so there has been little underlying change with El Ninos elevating the temperature a little and La Ninas reducing them. Is what is happening to global annual average surface temperatures all that surprising?

    is demonstrably FALSE.

    If you look at decadally averaged temperatures and ENSO, you will see that during La Nina dominated periods, global temperatures are now remaning about constant (e.g. actually a 'hiatus') and during El Nino dominated periods, we are getting about 2x the decadal warming rate of the overall average. Over the past century, global temperatures basically stair-step based on ENSO phases, but they have NOT gone down.

  23. 2015: A Very Bad Year for the Global Warming Policy Foundation

    @One Planet Only Forever-

     

    Well-put. It's worth noting, also that the 97/98 event was preceded by a fairly COOL 1997 year. If you want to compare THIS El Nino event and global temperatures, it should be compared with 1997 at this point, and then 1998 compared with 2016.

    It is not being presented clearly enough to people that global temperatures lag El Nino by 3-6 months, which is how the data were handled in that graph posted by LarryM, originally in the Houston Chronicle.

  24. One Planet Only Forever at 05:58 AM on 31 October 2015
    2015: A Very Bad Year for the Global Warming Policy Foundation

    Another fact against the claims that warming has not continued is that in previous El Nino events it is the year following the start of the El Nino that is the warmest, 1998 for the 1997/98 event. So it is likely that the 2016 global average will be even warmer than the anticipated 2015 global average.

    And there is no need to wait for the end of a calendar year to get an annual average. Any 12 month period contains each month of a year. And the trend so far through 2015 is clearly that the averages of 12 months keep going up with each new month.

    The trend of 30 years also continues to go up with each new month. In fact the trend the 30 year averages never 'noticably paused'. Every new month is significantly warmer than the month 30 years before. And it seems likely that February 2028 will be warmer than that very unusually warm Feb 1998 value, even if 2028 is La Nina influenced (the graph in LarryM's comment shows an average difference of about 0.15C between El Nino and La Nina).

  25. Bert from Eltham at 05:51 AM on 31 October 2015
    2015: A Very Bad Year for the Global Warming Policy Foundation

    LarryM I crudely plotted the estimated 2015 temperature anomaly using up to September data here

    http://d1355990.i49.quadrahosting.com.au/2015_09/2015est.jpg

    Bert

  26. A Real Sceptic Says at 05:42 AM on 31 October 2015
    It's not bad

    On the matter of the "goodness" or "badness" of outcomes, scepticism in the scientific sense is not relevent - because it is not a scientific question. It would be scientific to ask whether a given outcome is more or less likely under different global climate conditions (but sadly, few such predictions are scientifially checked, on either side of the debate). 

    It is elightening, though, to look at the stats. Cliamte change alarm supporters invariably cite all or virtually all consequences as "bad". They will fargue the toss each and every time a "good" outcome is found.

    Statistically speaking, is it reasonable for a small change in climate to have 10, 100 or 1000 times more "bad" consequences than "good"? No. Even if there was some underlying mechanism skewing the true outcomes toward "bad", it could not possibly be as extreme as the alarmists from the IPCC to this site and everywhere in between claim... and one can easily show to an adequate statistical significance that they are biassed. 

    How could bias creep in? Well, the individual negative outcomes are often fabrications (do you have time to check them all? There are thousands!). They are cherry-picked in type, methodology and location. You can see this by taking one and asking "how many other kinds of scenarios could be looked at, that differ in some way from this case?". And you will usually find *those* outcomes are far less "bad". Many, maybe 50%, will be "good". So naturally you wonder how the one that was published (and included in alarming lists on the internet) was chosen.

    What *true* underlying skew might there be? Well, the most obvious one is that more human beings are harmed by cold then by warm, and that more of the world becomes fertile when it is warm. Beyond that, the question rapidly bifurcates into less and less generally applicable effects, operating in both "good" and "bad" directions, with no "force majeure" to make them skew in either direction.

    So by the (very few) arguments that are sufficiently general to produce an overall skew, warming is a net "good". The remainder of arguments should be randomly distrinuted, or at least close to that. So people who claim they are mostly bad (or mostly good) are biassed (we can be confident of that).

    Of course, there are other moral positions. An actor changes something, another actor suffers as a result even though many actors benefit. What's your position on that? Well, in the case of global warming, it isn't even clear who is the actor making the change. Is it the humams who emitted CO2? OR the other humans trying to stop the first humans? Because both groups' actions will hurt *somebody*. 

  27. A Real Sceptic Says at 05:19 AM on 31 October 2015
    It's the sun

    Climate change advocates have a tendancy to casually disregard the sun as an influence. This may be unreasonable given that the importance of the sun in virtually all of earth's natural processes *should* make it first port of call when trying to explain phenomena.

    However, sceptics do not need to provide a solar explanation for global warming. They only need to state that one could exist. Advocates of human climate change may then either rule the sun out completely out or provide support for their preferred explanation (human CO2) by independent means. The latter is obviously off-topic for the current article.

    The explaination given by scepticalscience.com does not rule out solar influences. All it does is cite one rather simplistic hypothetical mechanism for solar influence and then dismiss *that*. This could be called a straw man argument. It indicates a preference for putting words in the mouths of sceptics and then debunking *those* rather than listening to what sceptics are really saying.

    Do sceptics have a convincing mechanism for a solar explaination? Well, there are some *feasable* ones, but nothing really solid.

    So the status on this question is as follows: we can't say it *is* the sun and we can't say it *isn't*, either. Climate alarmists must *thouroughly* rule out the sun as a cause before making any argument along the lines of "warming must have the cause we say it does because there are no other viable causes".

  28. A Real Sceptic Says at 05:05 AM on 31 October 2015
    Climate's changed before

    Real sceptics ask the question, "Are the changes in climate that have occurred since significant human CO2 emission fundamentally different from those that occurred before?". If yes, that would support the CAGW view. If not, CAGW *could* still be true, but the recent climate changes could not be cited as support for it except in a weak, probabalistic way.

    The problem is, for sceptics, that the support from the historical record has been repeatedly miserpresented and even falsified.

    Firstly, the Michael Mann's "hockeystick graph", given prominence in Al Gore's propaganda work, is still cited from tie to time in spite of having been debunked. It shows climate as virtually constant for a millenium before human CO2 and in doing so ignores important changes such as the Medieval Warming Period, the Little Ice age, as well as a noticable warming trend in the hundred years or so before human CO2 emissions.

    Other, more recent graphs are a good deal more honest about such things. However, the "trick" being used now is more subtle. These graphs are, without exception, smoothed to a far greater degree during pre-CO2 periods than the recent period. For example, you will see 100-year smoothing up to 1950, followed by 10-year or even unsmoothed data. It should not surprise that the less-smoothed period is less smooth - and the more bumpt section looks more alarming!

    Graphs going back over many thousands of years are often even more heavily smoothed. I saw one recently that went back 400,000 years, meaning that it gave only 1 or 2 pixels to each 1000-year period, and yet the last 50-years was shown explicitly, with probably only 10-year smoothing. Now, if the underlying data has more resolution, then the correct way to show the data is with a shaded region between min and max values (so the fine variation may be seen), rather than a saeries of averages (which is just another way of hiding detail on shorter timescales).

    To be fair, many studies will be intrinsically unable to uncover that fine detail. But when presenting that data, the fact that past rapid changes will not be present should be honestly pointed out. Not kept quiet. 

    Nearly every graph you now see of past trends is, whether by manipulation or limitations of the underlying study, not showing past rises of the kind seen in the last 50 years but only averages that would hide it. As a result, it would be incorrect to assume from them that such rises have not occurred.

    Suppose for example we see a cold day followed by a hot day. Someone micht claim that is an unprecidented event. Suppose they show you a graph of the last year's temperature, and smooth that graph out by taking weekly averages. Of course you won't see any examples of the event having happened before - the smoothing process rubbed them out!

  29. 2015: A Very Bad Year for the Global Warming Policy Foundation

    An excellent visualization of the impact of El Nino (and La Nina) on the underlying global warming trend is the SkS animated gif that shows the temperature trend for separate Nino/neutral/Nina years (graphic #67).

    ENSO temperature trends

  30. 2015: A Very Bad Year for the Global Warming Policy Foundation

    Using the Cowtan's University of York temperature plotter, it is interesting that the RSS satellite data shows a small cooling trend since 1998 (particularly if one ignores the two big El Nino spikes in 1998 and 2010).  Yet UAH shows a warming trend over the same time frame.  I think until the reason RSS is not keeping up with the rest of the data sets is clearly communicated, deniers will remain on the dark side of this pseudo-debate.  Meanwhile, there is that "10 indicators of a warming world" that suggests to me that RSS is missing something.

  31. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    MA Rodger @73, Wiese's formula is  A = 2 *(ν/β)0.5, where A is amplitude, ν is the North/South component of the wind field, and β is the Rossby Parameter.  In addition to calculating wavelength (Lx) rather than amplitude, the formula you have found includes pi as a factor and uses the uo, ie, the "basic flow" of the geostrophic velocity, ie, the flow excluding perturbations.  Under the conditions of the derivation, that is said to be a North/South flow but it is not equivalent to ν in all circumstances and that may be a relevant difference between the two formulas.  So, while the formulas are superficially similar, they are not the same.

  32. Newest Entry in Inside Climate News’ #ExxonKnew Story is a Doozy

    Propaganda undermines the foundations of democracy. It's serious.

  33. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    For those who are intrerested, when Chuck Weise Meteorologist deigns to stray onto the topic of this comment thread, the equation he is constantly waving so vigourously ( Lx = 2π(u0/β)½ ) is derived here. You will note the equation applies to stationary waves which may be allowable as the Francis & Vavrus (2012) paper is mindful of blocking weather patterns. Also the quantity Lx is actually the wave length rather than the amplitude, although in the simple theoretical model being used amplitude will be proportional to wave length.

    Moderator Response:

    [RH] Being this is core to the OP I would request all commenters to direct their questions and observations to this issue. 

  34. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Chuck Wiese @67

    how is it that cold air from the arctic can penetrate further south in her scenario if the arctic is warming rapidly?

    Very cold air in the arctic can warm rapidly and still be colder than (for example) slower-warming Texan air. How come Chuck Wiese Meteorologist doesn't realise this ?

  35. PhilippeChantreau at 14:53 PM on 30 October 2015
    A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Sidd said pretty much everything there is to say. Chuck Wiese seems to have a Gerlisch and Tschneuer type of argument.

    Ignore the U of O link if you must Mr Wiese, I provided other links, including one to your colleague Paul Douglas, who refers to NOAA and explains exactly the same thing outlined above, i.e. low zonal flows, high amplitudes.

    The Francis and Vavrus paper is anything but isolated

    http://www.pnas.org/content/111/34/12331.abstract

    http://www.nature.com/ngeo/journal/v7/n9/abs/ngeo2234.html

    Chuck Wiese seems sensitive to expertise and authority. This last paper includes many authors, I don't know exactly how many have PhDs but at least Francis, Coumou and Overland do. Coumou has extensive expertise in fluid dynamics. How likely is it that they all have missed something that Chuck Wiese is the only one to understand? And the reviewers as well? Really?

    Besides, I maintain that the argument "it hasn't warmed in 18 years" is exclusively dependent on cherry picking data set and starting point and is misleading and dishonest.

  36. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    My mistake- you did answer that.

    My latest question for you was: " You are saying CO2 has no effect on anything, perhaps?"

  37. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    @ 68,

    I have already asked if you believe CO2 comes out of solution at higher temperatures. You refuse to answer as you know this is the key...

  38. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming
    Grrr. Please read the paper and think for a minnit. Francis is not arguing that a slower jet has larger maximum meander size. She is saying that hi k (wavenumber) modes propagate with smaller group velocity, not just theoretically, which is obvious when you consider that group velocity decreases as sumpn like 1/k^2, but also observationally. For those who don't think in terms of wavenumbers just remember that the higher the k, the more meanders.

    Now i'm really done with that topic.

    Nyhoo, the 2015 paper is more interesting, coz it has 360 degree coverage rather than the 0 to 140 of the 2012 paper, and uses a neat technique. Would love if our hosts might find time for analysis on that one especially the self organizing map bits.

    sidd

  39. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Tom: A couple of things. First, Francis does not supply any physical connection to her claim that as the arctic warms Rossby amplitude must increase. The physics of the equations supporting the Rossby wave behavior state otherwise and clearly define the amplitude of the waves being a function of latitude and speed of the flow, with the amplitude increasing or decreasing in proportion of the same direction as the speed. In other words, the opposite of what she claims.

    Second, slower progression of the waves does indeed mean that weather patterns will be more persistent in the areas they coincide over. That can include severe weather and temperature extremes. But..the speed of Rossby waves is not the same as the amplitude and depends on the westerly component of wind, latitude and wavelength. It is quite apparent that as the westerlies decrease from increased meridional flow, the speed of the waves slow. But again, long waves, meaning high amplitude are dependent on inceasing, not decreasing north or south flow (meridional).

    You take a passage from her paper that describes how arctic warming supposedly "stretches" the waves thus amplifying them. Then she claims with a warmer arctic, frigid arctic air can penetrate further south, the process causing temperature extremes. The obvious weakness I see in this statement without supporting evidence from her would be to ask the question that how is it that cold air from the arctic can penetrate further south in her scenario if the arctic is warming rapidly? And especially if she claims this can cause temperature extremes. This makes absolutely no sense.

    Chuck Wiese

    Meteorologist

    Moderator Response:

    [RH] This seems to be exactly the problem. Francis' statement makes perfect sense about arctic air penetrating south (being as arctic air will still be cooler than air to the south). I, and obviously others here, are dumbfounded that you so emphatically state things are wrong and don't make sense when, in truth, they're perfectly sensible. Same as with your rejection that CO2 is the main control knob for global mean temperature. Your issues over Rossby waves are more convoluted and hard to follow but I suspect it's a similar pattern. 

  40. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Moderator: Here is the abstract of Jennifer Francis's paper:

    "New metrics and evidence are presented that support a linkage between rapid Arctic warming, relativeto Northern hemisphere mid-latitudes, and more frequent high-amplitude (wavy) jet-stream configurationsthat favor persistent weather patterns.Wefind robust relationships among seasonal andregional patterns of weaker poleward thickness gradients, weaker zonal upper-level winds, and a more meridional flow direction. These results suggest that as the Arctic continues to warm faster than elsewhere in response to rising greenhouse-gas concentrations, the frequency of extreme weather events caused by persistent jet-stream patterns will increase."

    That passage was taken from here on the front page of her paper:

    http://iopscience.iop.org/article/10.1088/1748-9326/10/1/014005/pdf

    Chuck Wiese

    Meteorologist

  41. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Francis's point 1 described the consequence of slowing without mentioning it increasing wave amplitude. Instead,

    slower wave progression means that weather conditions will be more persistent

    Although I have not read in detail Chuck's comments nor the responses to his, I believe neither of these two of Francis's mechanisms is what Chuck claimed. Nor do I see any necessary contradiction between these two mechanisms: If Chuck is correct (I have no idea) insofar as slowing causes lower amplitude, that's fine as long as the slowing Francis described (from both her mechanisms) results in less amplitude reduction than the amplitude increase from her mechanism 2.

    Ta da.

  42. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Here is Francis's point 2 that Phil pointed to:

    The second way that Arctic amplification is expected to influence the jet stream and our weather is by increasing the “waviness” of the jet stream. Because of Arctic amplification, the northern peaks of waves, called ridges, will experience more warming than the southward dips, called troughs. This is expected to cause the ridges to stretch northward, which will increase the size of the waves. Larger swings in the jet stream allow frigid air from the Arctic to plunge farther south, as well as warm, moist tropical air to penetrate northward. These wavy flows often lead to record-breaking temperatures. Meteorologists have also known for a long time that larger jet-stream waves progress eastward more slowly, as will the weather systems associated with them. Consequently this represents another mechanism that will cause weather conditions to linger.

    That is not at all the mechanism that Chuck wrote Francis claimed: "Francis is arguing that a slowed jet stream as she implies is happening means the amplitude of Rossby waves increases.'

  43. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Incidentally, whilst looking into this topic, I discovered that Jennifer Francis did her PhD here - a department founded by Phil Church who worked with Carl Rossby

  44. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Chuck @61, sidd @60

    That the jet stream would meander more is indeed one of Francis's points (point 2 in this article)

  45. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    sidd: No, Francis is arguing that a slowed jet stream as she implies is happening means the amplitude of Rossby waves increases and thus causes more extremes in severe weather.

    The point in the equation is to think of it in terms of its limits. A specific speed and latitude prove nothing. The point is that as the wind speed of the jet increases at a particular latitude, so must the amplittude of the wave. As speed decreases, so must the amplitude. This is the opposite of what Framcis and Vavrus are claiming and it is wrong.

    Chuck Wiese

    Meteorologist

    Moderator Response:

    [RH] "Francis is arguing that a slowed jet stream as she implies is happening means the amplitude of Rossby waves increases and thus causes more extremes in severe weather."

    Please cite the passage where this is claimed. Again, we expect citations here.

  46. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    If I do the calculation for max amplitude of Rossby wave 2*sqrt(V/(2*omega*cos(phi)/a)) i get, as expected a few thousand miles. Why is this relevant ? Francis argues a different point entirely, that the jet stream has slowed and that meanders are more frequent, not that they exceed some hypothetical limit in a simplified atmosphere thats neglects topo and buncha other things. I advise those interested in these matters to read Isaac Held's most excellent blog 

    sidd

  47. 2015 SkS Weekly Digest #43

    I have similar admittedly anecdotal, information about my students and what they understand.  Nice to see some numbers and quotes from your students.   I have to say I found this quote  "Is this normal, I am a vegan and I did not know this."  to be somewhat amusing but in the context of a person thinking about how they are living, quite interesting.

  48. Newest Entry in Inside Climate News’ #ExxonKnew Story is a Doozy

    Hillary Clinton joins the call for an investigation:
    http://thinkprogress.org/climate/2015/10/29/3717602/clinton-investigate-exxon/

  49. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Moderator: I don't understand the concern in your question. The equation I provided was from published, peer reviewed and accepted literature into the atmospheric science published data base and the texbooks authors are all Phd's in atmospheric science. This material was taught in dynamic meteorology as part of my major and I don't believe any of the professors I had studied under would be so foolish as to present equations which are not valid or correct.

    Textbooks for learning and lecture are not published scientific research papers as I believe you are refering to. And no, I have not seen any papers published that specifically used this equation. Does that make any difference? Every professor I know of has these texts in their own personal library and they are more commonly used as references and tools that simplify their own work and used to teach with as well. If you've never seen the equation before, does that make it wrong? The equation speaks for itself and it was derived by the authors I have given you correctly. If this paper by Vavrus and Francis is one of the first published in a climate journal that addresses Rossby wave theory, it shouldn't be a surprise that you haven't seen it elsewhere, should it?

    Chuck Wiese

    Meteorologist

    Moderator Response:

    [RH] You'll forgive my personal skepticism of your lengthy explanations when you've expressed a rejection of basic greenhouse theory, vehemently rejected the work of a well established climate researcher, and failed to present any supporting research. You state here in this comment that the equation is from published research but have been unable to cite that research. If you're serious about engaging here I believe that would be a positive move toward advancing the discussion. Short of that you're merely sloganeering (which, as a moderator, is one of my primary concerns).

  50. A Rough Guide to the Jet Stream: what it is, how it works and how it is responding to enhanced Arctic warming

    Michael Sweet, MA Rodger and Philippe: I will answer your comments in this one post.

    To repeat, Jennifer Francis's conclusion in her paper and this article are wrong. You are trying to claim that just because she wrote it and it is more recent than the published and peer reviewed literature along with other recent publications, that time erases in and of itself older work. That is not how science works and any scientist with a doctorate degree knows this, and this is precisely what I have seen in many instances of work done in climate papers as they relate to atmospheric science. Assumptions are made and sometimes without bothering to look at the founding principles to see if they agree. I provided the references of this literature to show they do not and the specific equation that is used to estime a maximun Rossby wave amplitude. And as it solved from the primary equations, it is obvious that wind speed and latitude determine that amplitude with speed  controlling. (And Philippe, yes, I meant EXP 1/2 to maen taking the square root of V/B.) In order for Francis and Vavrus to claim  otherwise, they need to show where this realtionship is wrong, or where it was improperly derived. They have done neither. Ma Rodgers, your response is a bit more reasonable but none the less, there seems to be an attitude that older work is irrelevant if today's Phd's ignore it. That is preposterous. If Francis or Varus can show where these equations in the founding literature are wrong, then they have a valid hypothesis, but not until then and the reviewers should have caught the error in assumption.

    Philippe, your post contains no citations that show how to compute the amplitute of Rossby waves or where the equation I gave is wrong. That is what is the key point in my writing to criticize, and as the moderator has asked of me, lets cut the dogpiling and "sloaganeering" . Your references not only fail to give a citation that disproves what I have provided, you are using references like the University of Oregon and calling them an "institution of superior education". What does this mean when they offer no major in atmospheric science or meteorology and have no Phd's on their staff to teach atmospheric science?

    Turning briefly to the hurricanes I brought up, a few points for Michael Sweet: You are correct about hemispheres being divided at the dateline or 180 degree meridian so my bad for misstating that. But I was thinking of the body of water called the Pacific ocean that provides the fuel to both eastern Pacific hurricanes and western Pacific typhoons. Would that not be a better comparative for the puposes of climate rather than assigning an arbitrary cut-off meridian that has no climate significance?

    To challenge some of your other points, I spoke by telephone this morning with Dr. Chris Landsea of the National Hurricane Center and asked about observing techniques that were used in the 1960's. To start with, he does agree the older techniques are not as good as those used today but I never said older methods were better. It is interesting to note that what they did do in those days was fly recanaissance aircraft down to 500 ft off the ocean surface under cloud bases to estimate the winds and had a US Air Force Weather Officer estimate visual conditions by a developed hurricane "beaufort scale". They also used doppler techniques as Jeff Masters mentions, but his quote from a "hurricane expert" at the time regarding the doppler technique makes no sense. The quote claims that because they were concerned about getting attenuation from flying sea spray that readings from the doppler shift would be erroneously high. The opposite would actually be true and the readings would be too low because the reference would be with respect to the true airspeed of the aircraft to get the ground speed and compute the surface winds. That is something I am quite faniliar with being an FAA licensed Airline Transport Pilot and Flight Engineer. The point in all of this is not to claim methods were better then than now, but there is no justification in claiming speeds were measured too high alone, either. There is a degree of error in any neasurement and these criticisms do not address the actual numerical significance. It would appear by these techniques they were accurate and the margin of error could be in either direction with changing circumstances.

    BTW, Dr. Landsea has informed me that the National Hurricane Center is writing up Hurricane Patricia and intends on putting it into its perspective in comparing it to the record. Those of you who believe hurricane intensity is getting stronger and related to "climate change" may not like what he is going to say, but it will be up on their website soon.   

    Finally, I sense a lot of tension from the readers of this blog as well as a venomous dislike of any who take issue with the orthodoxy of what is written about humman induced climate change from CO2. There also seems to be a double standard on this site. The moderator is asking as do the bloggers to provide specific citations to back up claims made about a topic like this. There is nothing wrong with asking for them and I have provided them but I take note of the fact that the author of this article provides no citations for any of his claims other than a reference to Jennifer Francis at the end. Who is John Mason, what are his qualifications to write about meteorology or atmospheric science and why did the moderator accept the article without asking for specific citations of published work to back his assertions be included? 

    There is also a fake credential degradation used by warmers that needs to be pointed out here. Anyone who holds a bachelors degree or higher in atmospheric science is qualified for employment as a forecast or other operations meteorologist by the US National Weather Service. That is a national standard applied by the agency. It has nothing to do with "qualifying" to be a TV weathercaster. In that arena, there are no standards and plenty of scientific illiterates who know little but use the AMS TV Seal of Approval whose standards were lowerd to less than academic to claim the use of the title "meteorologist". Many of these people call themselves meteorologists but they absolutely do not meet the professional standards required for employment at the US Weather Service and that is the standard that counts. There are no licensing authorities that police the use of this title. The US Weather Service used to do it but ceased after standards were lowered to obtain a TV or Radio AMS seal. Hope this all helps.

    Chuck Wiese

    Meteorologist

    Moderator Response:

    [RH] Can we assume, based on your continued lack of citations, that there is no actual published research that supports your position. (Honest question.)

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