Monthly Archives: May 2014

"Science education should be based on our economy" Wut?

Republican lawmakers and their kin are opposing the acceptance of National Science Standards. Why? Because those standards are based on science. What they prefer is that the standards we use to guide curriculum in America’s public schools be the hobgoblin of the Koch Brothers and the rest of the petroleum industry. Way to ruin the country, man. Civilization too. Nice move.

As Chris Hays points out (see below) the anti-science industry in America is leaving Creationism behind and shifting towards the denigration of Climate Science, much to our detriment.

The following interview from All In covers this, and includes Mary Mazzio, documentary film maker, and Michael Mann, climate scientist. Watch it. Then get mad and do something about it.

While you are at it, have a look at this All In segment on the GOP ordering the Pentagon to ignore climate change. Including the Navy, which will be losing ALL OF ITS BASES if they ignore sea level rise.

500,000 people evacuate massive 2-week long flood; 40+ dead.

Excessive warmth attributable to global warming and a stalled weather system, also attributable to global warming, have caused a weather system in over southeast China to dump rain since May 12th. A million people are in the impacted area, ahlf of them have had to move or have been rescued, and the 2-6 inches of daily rain continues. 25,000 homes have been destroyed.

This area has recieved huge investments over the last few decades, since a huge 1998 storm killed thousands and caused 26 billion dollars in damage. They now fear that the present flooding will be as bad.

Here’s some video (with some out of date information on casualties and damages):

Sources:

Massive, Two Week Long China Flood Sends Half a Million Fleeing, Destroys More Than 25,000 Homes

Half a million evacuated as China braces for more flooding

The Amazing, Impressive, Powerful Amanda

Usually when I make a sentence like that it is about my wife, Amanda. But this time we’re talking about Hurricane Amanda, the first hurricane of the Eastern Pacific hurricane season.

Amanda reached maximum winds of 155 mph on or about 8:00 AM Pacific Daylight Time on Sunday morning. That make Amanda the strongest Eastern Pacific May Hurricane on record. There are usually very few hurricanes in the Eastern Pacific in May, and the few that occur happen late in the months. Here’s the historical distribution of Eastern Pacific hurricanes, form 1966-1996:

East_pacific_tc_climatology

Amanda is the earliest on record Eastern Pacific Category 4 hurricane.

The hurricane date for the Eastern Pacific is not well organized and accessible (without working hard) as far as I can tell. Wikipedia is shamefully badly organized and out of date, and the NWS focuses much more on Atlantic hurricanes because they are far more likely to menace the US (though Eastern Pacific storms of course can end up in Hawaii, and occasionally hit the US West Coast … and one actually slammed into Texas!).

So I can’t say much more about Amanda. The extra intensity and early date is certainly related to enhanced sea surface temperatures in the region, but the relationship between that and the possible coming El Niño can not be established at this time. Putting this another way, we can ask the question, is the Eastern Pacific Hurricane Season going to be affected by El Niño, the answer is clearly: We’ll see.

Amanda has weakened since, and is expected to continue to weaken as she moves north and turns into a tropical storm.

Axon Growth Possible in Central Nervous System

I don’t have time to read the original or make much comment on this, but since this topic has come up here before, I thought I’d pass on the press release from Burke REhabilitation and Research:

Burke Medical Research Institute Scientists Show Axon Growth Possible in Central Nervous System

White Plains, NY – May 21, 2014 –Recent findings by Burke Medical Research Institute scientists could one day pave the way for new treatments for spinal cord injuries. The study, published as a cover story, with commentary, in the current issue of the Journal of Experimental Medicine, found, for the first time, that activating a protein known as B-RAF promotes the regeneration of injured axons in the central nervous system of mice. Until now, it was thought that axons—which conduct signals between neurons—could not re-grow or be restored after an injury in higher animals such as mice, or in humans. Injuries, such as those affecting the spinal cord, can damage these axons, making their regeneration an important first step towards possible recovery.

Since earlier studies found that axon growth can be blocked by disabling B-RAF, the researchers wanted to find out if activating B-RAF could—in contrast—help promote axon growth and regeneration.

The team, led by Jian Zhong, Ph.D., director of the Molecular Regeneration and Neuroimaging Laboratory at the Burke Medical Research Institute in White Plains and assistant professor of neurology and neuroscience at Weill Cornell Medical College in New York City, found that axon growth was promoted in three distinct scenarios. These were: in a developing mouse embryo that didn’t have an important normal axon growth signal, in injured sensory neurons whose axons grow into the central nervous system, and then in an injured optic nerve, which is part of the central nervous system.

“Not very long ago, we were not sure if neurons in the mammalian central nervous system could ever regrow axons to any useful lengths at all,” said Dr. Zhong. “Now, we see that by activating the B-RAF protein, the possibility is there. And that possibility could lead to exciting progress in the field of spinal cord injury treatment and rehabilitation.”
While there is no conclusive data on spinal cord injury at the moment, the optic nerve data makes it very likely that the B-RAF activation will also stimulate regeneration after spinal cord injury—though additional research needs to be done, said Dr. Zhong.

“These significant findings represent the importance of basic research for rehabilitation and the effects it will continue to have on how we approach treatment and help patients with various injuries, including those to the spinal cord,” says Rajiv R. Ratan, M.D., Ph.D, executive director of Burke Medical Research Institute and professor of neurology and neuroscience at Weill Cornell Medical College.

Scientists from the Burke Medical Research Institute included Dr. Zhong as well as Kevin J. O’Donovan, Ph.D., Kaijie Ma, B.M., and Hengchang Guo, Ph.D. Also contributing to the study were scientists from Harvard Medical School, Temple University School of Medicine, Icahn School of Medicine at Mount Sinai, and Centre Hospitalier Universitaire de Quebec in Canada. The study was supported by the National Institutes of Health, the Whitehall Foundation and the Burke Foundation.

A Call To Arms about Climate Change

Tens of millions of red blooded Americans, Tea Partiers, were called to Washington DC the other day to overthrow the government. A few hundreds or so showed up.

Now, Bill McKibben, of 350.org, is calling Americans to New York City, not to overthrow the government but to talk some sense into it. I’ll bet more than a few hundred people show up!

McKibben wrote an item for Rolling Stones that you should read HERE.

This is an invitation, an invitation to come to New York City. An invitation to anyone who’d like to prove to themselves, and to their children, that they give a damn about the biggest crisis our civilization has ever faced.

My guess is people will come by the tens of thousands, and it will be the largest demonstration yet of human resolve in the face of climate change. Sure, some of it will be exciting – who doesn’t like the chance to march and sing and carry a clever sign through the canyons of Manhattan? But this is dead-serious business, a signal moment in the gathering fight of human beings to do something about global warming before it’s too late to do anything but watch. You’ll tell your grandchildren, assuming we win. So circle September 20th and 21st on your calendar, and then I’ll explain.

350.org has a page devoted to the march, HERE. Please click through and get busy!

The Facebook Page is HERE.


The image above is from an earlier march, details here.

Forum: Science, Democracy, and a Healthy Food Policy

I recently wrote a post called “Did you ever wonder how you are going to die?” which was my response to a forum at the Humphrey Center, University of Minnesota, organized by the Union of Concerned Scientists called “Science, Democracy, and a Healthy Food Policy: How Citizens, Scientists, and Public Health Advocates Can Partner to Forge a Better Future“.

It was a great forum, with sessions moderated by my friend Don Shelby, and including an absolutely excellent group of speakers and discussants. Every single one of the talks was excellent, and the panel discussions were amazing.

It is a little long, 2 hours and 47 minutes, but it is worth watching every bit of it. The Surgeon General couldn’t be there but he beamed himself in via satellite, and gave a great big-picture talk on the effect of food systems and the public’s health. Richard Salvador, director of the UCS Food and Environment program (30:20) gave a great talk in which he made a very important point about the recent evolution of our food supply system, and touched on points I often make when teaching about the evolution of human diet. I plan to use his talk in class in the future. RT Rybak, (53:30) Mayor of Minneapolis until the last election (he did not run for re-election) is one of the best mayors anyone ever had anywhere, and while he was in office spent considerable effort supporting and developing local food growing programs. Following his talk, during the session and later on during post-forum conversations at the reception and dinner, it was often re-stated that “the first thing you need to do as a city concerned with healthy food supplies is to get a mayor like RT Rybak.”

The forum discussion started around 1:10, and there is too much there for me to summarize. Paula Daniels said some stuff that compelled me to hunter her down and ask more questions after the event. Pakau Hang was the audience’s favorite, with her discussion of dealing with the food supply from the point of view of a community that provides much of our locally grown food in the Twin Cities. Edward Ehlinger, the Commissioner of the Minnesota Department of Public Health blew me and everyone else away with his high level of discussion and clear and present inspirational competence. Shawn Otto, who was not part of the forum but with whom I was sitting, noted later in conversation that Governor Mark Dayton had done an excellent job putting truly outstanding people in important positions in the Minnesota government, Ehlinger being an example of that. But it was all good, just watch it. Andrew Rosenberg, Director of the Center for Science and Democracy (UCS) gave a great summary at the end.

I also enjoyed meeting my internet friend Michael Halpern, and having a long and engaging conversation with UCS senior analyst Pallavi Phartiyal.

Background information on the forum is HERE. A video of the entire thing is at that site as well as below, watch it!

Then, GO HERE and join or donate to the Union of Concerned Scientists!

Wheel of Fortune #Fail UPDATED TWICE

You have probably already seen the cringworthy Youtube Video of the famous Wheel of Fortune Fail in which a college student makes three awful blunders and loses the game. Well, I’m here to tell you about another Wheel of Fortune Fail that is even worse. Pat Sajak, the famous host of the long running game show, turns out to be a rabid Climate Change Science Denialist.

Here’s a recent tweet by Pat:

Here’s a screenshot of the same tweet showing some of Pat’s loyal followers telling you, dear reader, what they think of you:

Screen Shot 2014-05-20 at 10.37.18 AM

Apparently, Sajak is well known (to everyone but me, until just now, apparently) as a science denialist. Get Energy Smart has some coverage of this, including references to blog posts Sajak has written about climate change. For example (see GESN’s post for context):

  • Is it just me, or is it warm in here? which focuses on the old canard that global cooling was predicted 30 years ago so why should we trust scientists about Global Warming along with arguments that it’s all natural. (For ammo to shoot this down,Grist’s quick Sajak slapdown references two items of their great Skeptics’ Guide: Global Cooling and natural cycle arguments.)
  • Global Warming: What Are You Willing to Do? In this, with a lot of arrogance and disdain, Sajak actually strongly states an ethical and moral dilemma that faces all who believe in Global Warming. More on this one below.
  • Sajak has taken down these posts.

    No more Wheel of Fortune in my house, I can tell you that. Unless it is to watch the show to see who advertises on it. So I can not buy their products!

    WheelOfFortuneClimateChangeMEME

    UPDATE:

    Here is a petition to sign from Forecast the Facts.

    _____

    Other posts of interest:

    Also of interest: In Search of Sungudogo: A novel of adventure and mystery, which is also an alternative history of the Skeptics Movement.

    April 2014 tied April 2010 as Warmest April on Record

    A few days ago I noted that April 2014 was one of the warmest Aprils on record. This morning, NOAA has released its data showing that April was actually a bit warmer than I had suggested.

    NOAA has already stated that “The combined average temperature over global land and ocean surfaces was the fourth highest for March on record, at 0.71°C (1.28°F) above the 20th century average of 12.3°C (54.1°F)” and “The combined global land and ocean average surface temperature for the January–March period (year-to-date) was 0.60°C (1.08°F) above the 20th century average of 12.3°C (54.1°F), the seventh warmest such period on record.”

    Moments ago, NOAA stated: “The combined average temperature over global land and ocean surfaces for April 2014 tied with 2010 as the highest on record for the month, at 0.77°C (1.39°F) above the 20th century average of 13.7°C (56.7°F).”

    And, it has been tweeted:

    So, 2014 is turning out to be quite a warm year, and this is before the effects of a very likely El Ninño have kicked in (see also this for more on El Niño). Should the El Niño develop to a high level of intensity, as many think may happen, 2014 may end up being the warmest year in the instrumental record (going back to the late 19th century).

    Jeff Masters has more here on Wunderblog.

    Meteorologist Paul Douglas on Atheist Talk This Sunday

    This Sunday morning, on Atheist Talk radio, I’ll interview Paul Douglas, America’s favorite meteorologists (at least when the weather is good).

    When I first moved to Minnesota, which happened to be during a period of intense Spring and Summer storminess for a few years in a row (including this event which wiped out Amanda’s dorm long before I ever met her), I spent a bit of time while searching for a place to live watching the local news, to get a feel for the place. Coming from the Boston area, where the main local news stations aggressively compete with each other using their meteorologists, I found it interesting that there was a huge range of variation in the weather reporting in the Twin Cities. One weather team stood out above the others, led by Paul Douglas, who at the time was on WCCO (CBS). That station quickly became my go-to place for news and weather because of the quality of Paul’s weather reporting.

    At the time, climate change was on the minds of relatively few people, but it was very much an interest of mine because of my research in palaeoclimate connected to my work on the New England coast and in Central Africa. Also, soon after moving here I was added to the faculty of the Lakes Research Center, a globally recognized paleoclimate facility that focuses on fresh water proxyindicators (mud in ponds and lakes). So, it was rather annoying to see at least one of the Twin Cities meteorologists implying now and then that global warming was some sort of hoax, and in contrast, refreshing to see Paul Douglas speaking of the weather in scientific but understandable terms, and taking note of, and not dismissing, the extreme weather we were having at the time.

    Paul got into the broadcast business while still in high school, where he worked for WHEX-AM in Pennsylvania. Later he was to develop a series of weather related and other businesses, earning the appellation “entrepreneur extraordinaire.” He has degrees and certifications in meteorology, worked at KARE-TV in theTwin Cities, WBBM-TV in Chicago, and as mentioned, became chief meteorologist for WCCO-TV. He left that position a few years ago, and weather reporting in the area has not been the same since.

    Have you seen the movies Jurassic Park and Twister? Paul’s company Earth/Watch Communications produced the weather visualizations for those films, and Paul appears in a cameo in Twister.

    Paul is the author of Prairie Skies and Restless Skies.

    If you live in the Twin Cities you know that Paul writes a daily weather blog at the Star Tribune, and this blog is mirrored with a more national version at Weather Nation, which is the company Paul is currently most involved in. Those blogs are unique. A typical post includes a detailed narrative of current weather conditions and weather over the next few days, allowing the reader to get the sense of an expert meteorologist thinking out loud, going through several models, evaluating them, balancing the conflicting data, throwing in a bit of gut feeling, to produce a typically accurate (insofar as it is possible to be accurate) scenario for upcoming weather. Following this, a typical post by Paul Douglas will include a summary of the latest research and findings on global warming, often linking climate change to current weather observations.

    Over the last few years, it has become apparent that a phenomenon known as Weather Whiplash, likely a result of climate change, has become the predominant driver of significant weather events. Paul is one of the people who first notice this phenomenon, and his advocacy of the science of climate change and responsible meteorology had certainly helped drive research in this direction.

    Readers of this blog and listeners of Atheist Talk will also be interested to know that Paul is a Reasonable Republican (a rare breed) as well as an Evangelical Christian. He has written and spoken about the need for conservatives to embrace climate change, because it is real, and to address it with the assumption that it costs more to ignore it than to tackle it. He is also involved with faith-based activities advocating for applying good science to developing good policy regarding climate change.

    I’ll ask Paul about the weather (perhaps he will give us an exclusive forecast!), weather whiplash, his approaches to communicating about climate change, why he got into weather to begin with (I believe there is an interesting story there) and more. See you Sunday Morning!

    HERE is how to listen live, which can only be done from Minnesota, so you’d need to have a zip code such as 55344 or something. In case you are asked.

    The show will later be posted as a podcast here.

    If you have a question you’d like to ask, email it in during or before the show or call during the show at (952) 946-6205.

    Lennart Bengtsson Joins, Quits Denialist Think Tank, Cries McCarthyism UPDATED

    The Global Warming Policy Foundation is an organization of mainly economists dedicated to mucking up the development and advancement of good science-based policy related to climate change. It is a denialist “think” tank.

    A couple of weeks ago, Swedish meteorologist Lennart Bengtsson joined the GWPF. This was a little surprising, but not totally surprising. It was surprising because Bengtsson is scientist and the foundation is anti-science and, as I noted, mostly economists. (Well, they are sort of like scientists too, but a different kind of science.) It was not surprising because Bengtsson has positioned himself as a “skeptic,” claiming that his skepticism is the good kind (all scientists are skeptical) but really, he has expressed doubt about the validity of much of the standing mainstream climate science, especially the use of models. He is a #Faupause-er, claiming that a decrease in the rate of increase of surface temperatures (which is only part of the global warming picture) suggests that global warming is less of a thing than we all know it is.

    Then, just now, Bengtsson resigned from the GWPF citing harassment by scientists. One of the specific actions he refers to is a colleague suggesting he might withdraw as a co-author given Bengtsson’s affiliation with a rather rabid anti-science organization.

    The denialists have taken off with this, following Bengtsson’s lead. From Bengtsson’s resignation letter:

    I have been put under such an enormous group pressure in recent days from all over the world that has become virtually unbearable to me. If this is going to continue I will be unable to conduct my normal work and will even start to worry about my health and safety. I see therefore no other way out therefore than resigning from GWPF. I had not expecting such an enormous world-wide pressure put at me from a community that I have been close to all my active life. Colleagues are withdrawing their support, other colleagues are withdrawing from joint authorship etc. I see no limit and end to what will happen. It is a situation that reminds me about the time of McCarthy. I would never have expecting anything similar in such an original peaceful community as meteorology. Apparently it has been transformed in recent years.

    Under these situation I will be unable to contribute positively to the work of GWPF and consequently therefore I believe it is the best for me to reverse my decision to join its Board at the earliest possible time.”

    What happened here is simple to understand. A member of the scientific community who was retaining discredited ideas about climate change took one step too far, literally joining with the anti-science community. Colleagues complained about his choice, which is something they not only can, but should do. If the reports are correct, one of those individuals considered distancing himself from the GWPF, which is probably the ethical choice. In response, the denialist community, including Bengtsson (who has now apparently proven himself to be a member of that community) is calling foul. But really, what is the mainstream scientific community supposed to do? Is a professional gasp at a clearly inappropriate decision by a scientist really McCartyism? No, clearly it is not.

    The Daily Mail, which I usually don’t refer to, claims that Bengtsson’s climate science colleagues inferred or stated that the mainstream science community is respectable, and Bengtsson’s move to join the GWPF was silly, and apparently one blogger described him as a crybaby. Some told him that the GWPF was a questionable organization. That sounds like a lot of people trying to impress on him that his legitimacy as a member of the scientific community may be affected by sidling up to an explicitly anti-science organization.

    Rabett Run notes, “The short take on this is that Prof. Bengtsson ran into a wall of disgust from his colleagues which took him by surprise.”

    Roger Pielke, Jr, who himself has had his work in climate science (he is an economist) criticized (legitimately) underscores the McCarthyism claim, and doubled down:

    Unfortunately, “climate mccarthyism” is not so far off. It has been practiced for a while…

    The main problem here is … that the elite in this community – including scientists, journalists, politicians — have endorsed the climate mccarthyism campaign, and are often its most vigorous participants…

    The climate issue is coming to represent a globalized version of the US abortion debates. I tell my grad students that there is no use for policy analysts in the abortion debates. I should follow my own advice!

    Hot Whopper’s Sou gives some examples of why a scientist might not want to be affiliated, directly or indirectly, with the GWPF:

    As to why climate scientists might not want to be associated with the GWPF, this is a sample of the sort of nonsense that Nigel Lawson and his organisation are known for. On the IPCC:

    The Intergovernmental Panel on Climate Change, which published on Friday the first instalment of its latest report, is a deeply discredited organisation

    Nigel just made that up. The IPCC won a Nobel Peace Prize for heaven’s sake! How about this GWPF article – about the man deniers love to hate. (Archived here):

    IS MICHAEL MANN DELUSIONAL OR A DELIBERATE LIAR?
    Date: 05/12/11
    In my Weekly Standard Climategate 2.0 article I refer to Michael “hockey stick” Mann as the Fredo of the climate mafia, because of his endless bluster and the obvious embarrassment he brings to his fellow scientists.

    Expect the Bengtsson story to become denialist yammering fodder. Well, it already is. Expect more.

    UPDATE:

    One of the complaints made be denialists is, apparently, that Bengtsson was given the shaft by the mainstream scientific community when a paper he submitted to IOP was rejected. Quotes from the peer reviewer comments were used to implicate IOP, the journal, and the reviewer in a McCarthy-istic campaign against Bengtsoon. It turns out that was a lie. The journal rejected Bengtsson’s paper because if fell short of standards, but encouraged him to bring it up to snuff with the implication they would look at it again.

    There is a certain ethical question that has to be asked here; was the release of parts of a peer review OK? In any event, once it is released, the journal is obliged to address it, and in so doing, they have to check with the reviewer to see if the confidential review can be released. Well, all that happened, and IOP has put out a press release providing documentation of what really went on behind the scenes.

    Here it is:

    Statement from IOP Publishing on story in The Times
    16 May 2014Bristol, UK

    Dr. Nicola Gulley, Editorial Director at IOP Publishing, says, “The draft journal paper by Lennart Bengtsson that Environmental Research Letters declined to publish, which was the subject of this morning’s front page story of The Times, contained errors, in our view did not provide a significant advancement in the field, and therefore could not be published in the journal.”

    “The decision not to publish had absolutely nothing to do with any ‘activism’ on the part of the reviewers or the journal, as suggested in The Times’ article; the rejection was solely based on the content of the paper not meeting the journal’s high editorial standards, ” she continues.

    “The referees selected to review this paper were of the highest calibre and are respected members of the international science community. The comments taken from the referee reports were taken out of context and therefore, in the interests of transparency, we have worked with the reviewers to make the full reports available.”

    The full quote actually said “Summarising, the simplistic comparison of ranges from AR4, AR5, and Otto et al, combined with the statement they are inconsistent is less then helpful, actually it is harmful as it opens the door for oversimplified claims of “errors” and worse from the climate sceptics media side.”

    “As the referees report state, ‘The overall innovation of the manuscript is very low.’ This means that the study does not meet ERL’s requirement for papers to significantly advance knowledge of the field.”

    “Far from denying the validity of Bengtsson’s questions, the referees encouraged the authors to provide more innovative ways of undertaking the research to create a useful advance.”

    “As the report reads, ‘A careful, constructive, and comprehensive analysis of what these ranges mean, and how they come to be different, and what underlying problems these comparisons bring would indeed be a valuable contribution to the debate.”

    “Far from hounding ‘dissenting’ views from the field, Environmental Research Letters positively encourages genuine scientific innovation that can shed light on complicated climate science.”

    “The journal Environmental Research Letters is respected by the scientific community because it plays a valuable role in the advancement of environmental science – for unabashedly not publishing oversimplified claims about environmental science, and encouraging scientific debate.”

    “With current debate around the dangers of providing a false sense of ‘balance’ on a topic as societally important as climate change, we’re quite astonished that The Times has taken the decision to put such a non-story on its front page.

    Please find the reviewer report below quoted in The Times, exactly as sent to Lennart Bengttsson.

    We are getting permission from the other referees for this paper to make their reports available as soon as possible.

    REFEREE REPORT(S):

    COMMENTS TO THE AUTHOR(S)
    The manuscript uses a simple energy budget equation (as employed e.g. by Gregory et al 2004, 2008, Otto et al 2013) to test the consistency between three recent “assessments” of radiative forcing and climate sensitivity (not really equilibrium climate sensitivity in the case of observational studies).

    The study finds significant differences between the three assessments and also finds that the independent assessments of forcing and climate sensitivity within AR5 are not consistent if one assumes the simple energy balance model to be a perfect description of reality.

    The overall innovation of the manuscript is very low, as the calculations made to compare the three studies are already available within each of the sources, most directly in Otto et al.

    The finding of differences between the three “assessments” and within the assessments (AR5), when assuming the energy balance model to be right, and compared to the CMIP5 models are reported as apparent inconsistencies.

    The paper does not make any significant attempt at explaining or understanding the differences, it rather puts out a very simplistic negative message giving at least the implicit impression of “errors” being made within and between these assessments, e.g. by emphasising the overlap of authors on two of the three studies.

    What a paper with this message should have done instead is recognising and explaining a series of “reasons” and “causes” for the differences.

    – The comparison between observation based estimates of ECS and TCR (which would have been far more interesting and less impacted by the large uncertainty about the heat content change relative to the 19th century) and model based estimates is comparing apples and pears, as the models are calculating true global means, whereas the observations have limited coverage. This difference has been emphasised in a recent contribution by Kevin Cowtan, 2013.
    – The differences in the forcing estimates used e.g. between Otto et al 2013 and AR5 are not some “unexplainable change of mind of the same group of authors” but are following different tow different logics, and also two different (if only slightly) methods of compiling aggregate uncertainties relative to the reference period, i.e. the Otto et al forcing is deliberately “adjusted” to represent more closely recent observations, whereas AR5 has not put so much weight on these satellite observations, due to still persisting potential problems with this new technology
    – The IPCC process itself explains potential inconsistencies under the strict requirement of a simplistic energy balance: The different estimates for temperature, heat uptake, forcing, and ECS and TCR are made within different working groups, at slightly different points in time, and with potentially different emphasis on different data sources. The IPCC estimates of different quantities are not based on single data sources, nor on a fixed set of models, but by construction are expert based assessments based on a multitude of sources. Hence the expectation that all expert estimates are completely consistent within a simple energy balance model is unfunded from the beginning.
    – Even more so, as the very application of the Kappa model (the simple energy balance model employed in this work, in Otto et al, and Gregory 2004) comes with a note of caution, as it is well known (and stated in all these studies) to underestimate ECS, compared to a model with more time-scales and potential non-linearities (hence again no wonder that CMIP5 doesn’t fit the same ranges)
    Summarising, the simplistic comparison of ranges from AR4, AR5, and Otto et al, combined with the statement they they are inconsistent is less then helpful, actually it is harmful as it opens the door for oversimplified claims of “errors” and worse from the climate sceptics media side.
    One cannot and should not simply interpret the IPCCs ranges for AR4 or 5 as confidence intervals or pdfs and hence they are not directly comparable to observation based intervals (as e.g. in Otto et al).

    In the same way that one cannot expect a nice fit between observational studies and the CMIP5 models.

    A careful, constructive, and comprehensive analysis of what these ranges mean, and how they come to be different, and what underlying problems these comparisons bring would indeed be a valuable contribution to the debate.

    I have rated the potential impact in the field as high, but I have to emphasise that this would be a strongly negative impact, as it does not clarify anything but puts up the (false) claim of some big inconsistency, where no consistency was to be expected in the first place.
    And I can’t see an honest attempt of constructive explanation in the manuscript.

    Thus I would strongly advise rejecting the manuscript in its current form.