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Marcus at 13:56 PM on 29 January 2012Bilal Bomani, Cutting Edge Biofuels from NASA
"Open raceway ponds can become contaminated with exotic species of algae". Simple, then, don't use open ponds-use a close looped system instead. I've seen systems that are force fed CO2 from power station flue gas (probably gas powered, not coal powered) to provide both their food supply & a source of circulation. Here is some info that might be of use: http://www.globalgreensolutionsinc.com/s/VertigroFAQ.asp -
adelady at 13:13 PM on 29 January 2012Bilal Bomani, Cutting Edge Biofuels from NASA
This work is really, really important. We need better fuels even if the conversion rates aren't marvelous to start with. Check out this Guardian piece I knew palm oil wasn't terribly wonderful. I really didn't expect it to be worse than drilled oil, let alone in the same unfriendly group as tar sands. -
adelady at 12:06 PM on 29 January 2012The National Center for Science Education defends climate science in high schools
pirate - The latest update to climate zones for gardeners could be a handy starting point for discussions. Chicago Sun-Times No idea what would or wouldn't be suitable for various year standards. (I find myself quite disheartened when my tutoring students turn up with handouts or textbooks that I think belong in curriculum for 2 or 3 years earlier. That could just be a sign of grumpy-old-lady-ness. Standards have dropped since my day, hrrrrmpph.) -
Fran Barlow2 at 11:30 AM on 29 January 2012Bilal Bomani, Cutting Edge Biofuels from NASA
Open raceway ponds can become contaminated with exotic species of algae, which then out-compete the desired species for light and nuttient. You need to ensure that the desired species are robust relative to those endemic locally. The keys for me, as someone who has always been interested in 2nd Gen biofuels like algae, are EROEI, (though if the energy input is from low energy intensity and intermittent non-fossil HC the "EI" is not nearly so important) and scaleability. One needs something that will scale up to meet industrial level demand on short timelines, otherwise one has no more than a niche product. Nothing wrong with that, but if we are speaking of the heavy lifting to decarbonise ... Still, I admire the passion, and it's obviously R & D that is very worthwhile. Kudos to them. -
Paul D at 11:26 AM on 29 January 2012Public talk: Global Warming - The Full Picture
The engineer at the back of the audience is incorrect regarding the terms 'climate change' and 'global warming'. 'Climate change' was used in the 70s before 'global warming', which became more prevalent in the 80s after Hansens presentation. This myth about the terms is so often used and so many incorrect theories from the skeptics are based on some incompetent journalist or loud mouth media blogger claiming there is a conspiracy. I think John Cook handled that question well. -
DrTsk at 10:31 AM on 29 January 2012Bilal Bomani, Cutting Edge Biofuels from NASA
The only problem is the productivity of the algae....too low.. -
apiratelooksat50 at 10:03 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
Muon at 81 Thanks for pointing this out and we do use a lot of this material. Our Honors Physics teacher has even picked it up for his class. I often use other materials beside our textbook. As a matter of fact, this year I requested that we do not issue books to students and instead use a classroom set. Anything they need for homework can be accomplished by handouts, or they can "check out" a book from my room. -
Composer99 at 09:16 AM on 29 January 2012Katharine Hayhoe, Intent to Intimidate
william, I suspect a great deal of it has to do with the rise of millennarian dispensationalism among many Protestant denominations that form the 'Religious Right' within the US. If one holds the belief that, as the song goes, God's gonna set this world on fire one of these days (that is, the imminence of the End Times and hence the perfect Kingdom of God), then one can hardly be expected to support policies which are based on countervailing notions (such as the expectation that humans want to restructure society to sustain 7+ billions of people, if possible, for some thousands of years into the future). -
Chris G at 08:47 AM on 29 January 2012Public talk: Global Warming - The Full Picture
Little pressed for time; so, I didn't watch the whole video; sorry. I did skip to the end and caught the Q&A with the guy asking about the BEST results being published before being "published". I think a more succinct answer, should it come up again, would be something along the lines of: From a personal standpoint, it would have been better to wait, but we all know the results have not completed review yet and can take that into account. If the results change when they have been through review, we can consider that as well. I think the odds of any meaningful change in the numbers are unlikely. From a broader perspective, I think the only reason this study receives so much attention is that some people expected it to be different in some substantial way from the already existing records, and it wasn't. Stepping back further, and no refection on John, I was disappointed at the size of the crowd. What is coming is going to be something like WWII and the bubonic plaque combined, and most people want to carry on as though nothing is happening. -
william at 07:42 AM on 29 January 2012Katharine Hayhoe, Intent to Intimidate
What an incredibly sensible scientist. If you believe that God gave us dominion over the beasts in the field and the fish in the sea, he didn't say take this and destroy it. Presumably, like a father willing his legacy to his son, he hoped his son would take care of said legacy. This has always puzzled me about the GOP (Republicans). The proportion of committed Christians amongst them is said to be very high and yet all they want to do is to exploit the earth at the expense of their children. All they want to do is to accumulate wealth. What happened to their role as the guardian of god's works. What happened to Love thy neighbour. I just don't get it. -
muoncounter at 07:24 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
pirate: From the AP ES course webpage 'Special Focus: Energy and Climate Change', in an article starting on p. 20: Although global warming is one of the key environmental topics of today, few environmental textbooks provide a satisfying scientific explanation of the phenomenon. The people who write the exams are thus endorsing the point: one cannot teach by relying on textbooks alone. Textbooks are a starting point, not an endpoint. -
johngwarne at 06:54 AM on 29 January 2012Katharine Hayhoe, Intent to Intimidate
Sapient Fridge@4 Ding! Dishonesty, thy name is climate change denial! -
apiratelooksat50 at 06:46 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
Muon @ 77 You make a good point about weaving in climate change in the other units, and we can and often do just that. But, pursuant to what SB posted in 76, there are constraints and we have to hit the key ideas in each unit since that is what students (and teachers) are assessed on. -
apiratelooksat50 at 06:37 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
SB at 76 My apologies. That was unintentional. And your last paragraph is spot on! -
John Hartz at 05:57 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
@muoncounter #75: You might want to sound out Katherine Hayhoe about what's going on in Texas with respect to science textbooks. -
Rob Painting at 05:17 AM on 29 January 2012Bilal Bomani, Cutting Edge Biofuels from NASA
Absolutely loved the talk! Thanks Rob. Bilal Bomani is a bit of a legend to my mind. -
muoncounter at 05:15 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
pirate#71: "Environmental Science teachers have 18-27 days to cover the Global Change" You quote only one section (Section VII Global Change) from the AP Environmental Science course description. Sections I (Earth systems), II (The Living World), IV (Land and Water Use), V (Energy Resources and consumption) and VI (Pollution) all have topics that could be thematically tied to issues of climate change. So this 'time limitation' you claim is your choice: It is often known as 'teaching to the test.' In the US, Advanced Placement courses typically expect a higher level of work than is the case in 'regular' or even 'advanced' high school subjects. AP EnvSci is designed to be the equivalent of a one semester, introductory college course in environmental science. How difficult would it be to assign research problems throughout the year that tie the course to a unifying theme - man's impact on the environment, for example? As a result, you would not be tied to these time limits. But you have to see the need to do that. -
Stephen Baines at 04:59 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
Pirate, To provide a specific example in support of DB's assessment, after I made the following comment "More generally, when thinking of biodiversity loss, it's very hard to make a credible argument that changing climate will not, on average, have a net negative influence on the persistence of species..." You responded with "I have no objection to your last paragraph. I think your rationale is accurate and would not pose an argument to it. Some will benefit, some will suffer. But, as we know things now, they will certainly change. " (my emphasis) You claim to agree with what I say, but then restate my position so that it no longer resembles what I initially wrote. I can't tell if this is unconscious or not on your part. But I can tell you that it's maddening! Given the dissembling that is common about the web on this topic, it is easy to believe you are dissembling yourself. As for your last comment, I actually empathise with the plight of science teachers regarding text books. People are generally too quick to blame teachers for insufficiencies in science education. I think systemic problems play a key role as well. Teachers are often caught between teaching to standards on which they are strictly evaluated, and having to pick books from a limited selection that are in turn heavily influenced by the peculiar politics of one particular state. These factors place a serious constraint on time and resources available to delve into topics in depth in ways that promote critical thinking. -
muoncounter at 04:57 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
adelady#70: I looked through all of that information on desmogblog. They quote the LA Times article; they do not provide any new information about specific education policy. The money trail and influence-buying is certainly a web of corruption. I suspect that we will be drowned in new policy initiatives after the state education board elections in November. -
John Hartz at 04:36 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
@Daniel Bailey: With all due respect, I am one SkS author who continues to take apiratelooksat50 seriously. I know from personal experince (which predates Pirate's posting on SkS) that interacting with him can at times be very exasperating. I also know from personal experience that when I let my emotions take control, I over-react to what people post on a comment thread and invariably get into a heated exchange with them. As someone who has closely followed the recent exhanges between Pirate and SkS moderators/authors, I urge you all of you to leave your emotions at the door and stick to a straight-forward objective discussion of the issues at hand. Easier said than done, eh! -
Rob Painting at 04:31 AM on 29 January 2012NASA scientists expect more rapid global warming in the very near future (part 1)
Victull @27 - Joe the Scientist has gone over this but...... Yes, ENSO (La Nina/El Nino) is a cool/warm natural cycle. It is mainly a re-distribution of heat already within the system,.i.e the ocean either storing the heat below the surface layers (La Nina), or the heat rising up to the surface and spreading out across the eastern and central equatorial Pacific Ocean (El Nino). See the animation linked to in the post. When all that cool water is at the surface during La Nina, it exchanges heat with the atmosphere, but being cooler water, it leads to a temporary drop in global temperature. But now that cool water is at the surface, it gets heated by sunlight. Deep water that was once cool now warms up so the ocean gains a considerable amount of energy. In effect we have heat still stored in the subsurface layers in the western tropical Pacific, and the cool upwelled water along the west coast of the American continent being warmed by the sun. In addition, the cooler ocean surface leads to less evaporation which leads to less cloud cover which means more sunlight is able to reach the ocean surface. Understandably the oceans are going to soak up a lot of heat. During El Nino, of course, a fair chunk of that heat stored in the ocean is given up to the atmosphere (see figure 3), global temperatures rise rapidly and a lot of that heat is lost out to space. This cyclic ENSO phenomenon has been around for a very long time, many millions of years at the very least. It was once thought that the Pliocene (around 2-5 million years ago) saw a permanent El Nino, but recent research indicates that our friend ENSO was still doing it's thing then too, and may in fact stretch back tens of millions of years. Current global warming on the other hand has only been around a short time - since the start of the Industrial Revolution (around 1750), a time when humans started to fundamentally alter the composition of the ocean and atmosphere through the burning of fossil fuels. All this manmade CO2 creates a small but persistent annual warming trend. Prior to the Industrial Revolution i.e. the natural pristine climate would have been something like this:
In the absence of any climatic 'nudge' the climate would not undergo any net long-term warming or cooling because ENSO (and the 11-year solar cycle) average out to zero.
With increased concentrations of carbon dioxide in the atmosphere from fossil fuel burning (global warming) this changes things. That cyclic ENSO is now superimposed upon top of a rising trend.
Of course in the real world these cycles are not regular as in these diagrams, that's just for illustrative purposes. That's how it might appear if we were to plot temperatures on a graph, but what we would actually experience are periods of slow or negligible global warming, followed by periods of rapid global warming (as the NASA scientists expect). So quick/slow/quick/slow..........and so on and so forth.
Again, not every cycle will be the same, there is likely to be significant variability. This variability is apparent in every climate model run that I have ever seen. You may perhaps have seen it too, but may not have grasped its significance.
Anyway hope this clears up your confusion. Current global warming intersperses periods of little warming with periods of rapid warming because the natural cool/warm oscillations are superimposed on a warming trend. At times it reinforces the warming trend (warm phase), and at other times it works against it (cool phase). This is nothing unexpected, however predicting the timing and intensity in well in advance is difficult. However as those eminent NASA scientists point out, the evidence strongly suggests a rapid global warming phase is near.
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Public talk: Global Warming - The Full Picture
Sapient Fridge - That article in the "The Australian" appears to refer to the Schmittner et al 2011 paper discussed here. Their mean sensitivity value is a bit lower than the current IPCC estimate, while their lower value is in part due to a rather warmer Last Glacial Maximum (LGM) temperature estimate than is usually used. -
apiratelooksat50 at 04:21 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
Sphaerica at 66 and 67 Teachers are provided a selection of textbooks to choose from. We review and make recommendations to the District Office on the one we want to adopt. We make that decision based on accuracy of information and the accompanying materials. I personally do not like our current textbook and opted for another publisher. I do not know how the other Env. Sci. teachers in the district voted, but regardless we did not get new books due to budget issues. As a good teacher, I can only affect what textbooks are selected to a certain degree. The citizens of the state can put pressure on local schoolboards more effectively. Heck, I'm pretty sure at least one of SKS moderators who has posted in this thread lives in this state and could take a role as a taxpaying citizen in textbook adoption. -
Daniel Bailey at 04:16 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
Perhaps you find the statement close to the mark then. This all stems from your earlier comment which was a context-free quote from a textbook. It was pointed out to you the fallacy of the statement without the context the science provides. Apirate, the reason you are not taken seriously here anymore is illustrated in the exchanges on this thread: You continually post from a position of preconception and ignore or downplay that which contradicts that position. That is not science, it is ideology. To teach science from that standpoint is an abomination. -
apiratelooksat50 at 04:07 AM on 29 January 2012The National Center for Science Education defends climate science in high schools
DB at 65 You have no idea what I provide in my classroom, therefore your statement is patently false and offensive. Regardless of my position on this issue, I teach the students what is in the textbook since that is what they will be tested on. Then we augment that with current events, research papers, moderated debates, position papers, etc... FYI - SKS is on their provided list of websites to access for information. We are limited by time since there is a curriculum pacing guide we have to follow. We have 180 days with students in the classroom. Some of those days are spent on testing and others on administrative tasks. Following is an excerpt from the AP Environmental Syllabus which can be found in its entirety here. NOTE: Question #2 in the Sample Free Response Questions is about climate change. You might find it interesting. VII. Global Change (10–15%) A. Stratospheric Ozone (Formation of stratospheric ozone; ultraviolet radiation; causes of ozone depletion; effects of ozone depletion; strategies for reducing ozone depletion; relevant laws and treaties) B. Global Warming (Greenhouse gases and the greenhouse effect; impacts and consequences of global warming; reducing climate change; relevant laws and treaties) C. Loss of Biodiversity 1. Habitat loss; overuse; pollution; introduced species; endangered and extinct species 2. Maintenance through conservation 3. Relevant laws and treaties So, at best, Environmental Science teachers have 18-27 days to cover the Global Change section (of which global warming is only part) since the students are assessed on the entire breadth of the course. -
Sapient Fridge at 03:06 AM on 29 January 2012Katharine Hayhoe, Intent to Intimidate
JoeTheScientist@2 You mean like the bruising El Nino that won the argument in 1998? Hmm, something wrong there... All that would happen is that the "skeptics" would claim it was a freak event, then they would use it as the start point of their graphs for the next decade to show falling temperatures. -
JoeTheScientist at 02:41 AM on 29 January 2012NASA scientists expect more rapid global warming in the very near future (part 1)
victull@15, The ENSO cycle is temporal variation in energy distribution, not a spatial one. Warmer water and air at the SURFACE is balanced by cooler water and air at the SURFACE some-when else. @27 ENSO has been around for a very long time, certainly throughout the industrial era. Since it existed early in the industrial era when the impact of GHGs on the atmosphere was very small, there is no reason to believe it did not exist before industrial emissions. Complaining about Rob@18's two statements: Sure, ENSO does not make a net contribution to long term anthropogenic greenhouse gas-induced warming, and technically, the "globe" actually cools during an El Nino. However, when an El Nino comes along, it makes the global surface temperature rise sharply. Surface temperature is the usual benchmark for "global warming", so colloquially speaking, the El Nino will "increase global warming". Obviously you understand the distinction between CO2-driven global warming and El Nino-driven surface warming, but if you try to get technical with the average reader and force them to understand that distinction, you'll probably just confuse them. (No offense.) -
mlyle at 02:04 AM on 29 January 2012Katharine Hayhoe, Intent to Intimidate
Joe-- Wrong wish. Unfortunately this is not a football game but our world. The best strategy is to keep focusing on the facts and their outcomes. -
JoeTheScientist at 01:50 AM on 29 January 2012Katharine Hayhoe, Intent to Intimidate
(Oh how I wish the La Nina would end and give us a bruising El Nino. We need some stark new temperature highs to help win the argument.) -
Sapient Fridge at 00:42 AM on 29 January 2012Public talk: Global Warming - The Full Picture
Apologies for following up my own post, but I think "The Australian" article being quoted by the chap at 00:50:29 was this one. -
Sapient Fridge at 00:32 AM on 29 January 2012Public talk: Global Warming - The Full Picture
jimspy@2 There are 3 "skeptic" questions in the video, and one which is slight ambiguous. 00:36:34 A chap (D. Weston Allen) asks why mistakes and exaggerations made by climate scientists supporting AGW are ignored. He also pushes his book in which he claims he identifies mistakes made by Tim Flannery. 00:43:06 This rather verbose questioner says we're living in an age of unreason and seems to think it's all propaganda. He takes issue people saying "carbon" rather than "carbon dioxide" and with people switching from saying "global warming" to "climate change". 00:50:29 This question is asked by a chap with a copy of "The Australian" with him saying that scientists have published a papers showing climate sensitivity is much lower than previously thought. I think it refers to the science paper addressed here. 1:04:00 This one is a little ambiguous as the question is asking what John thinks about papers being released before peer review e.g. the BEST paper. I include it because I think the source of that meme is the WUWT web site. -
victull at 23:20 PM on 28 January 2012NASA scientists expect more rapid global warming in the very near future (part 1)
phila@21, rob painting@18, kr@17 kr@17, you seem to suggest that ENSO is a cyclical external forcing which opens and closes a heat absorption window on the TOA imbalance. ie a cycle driving a rising trend line. Did ENSO exist prior to the industrial release of CO2 and other GHG when there was no TOA imbalance due to GHG? I looked at your link to SKS post "Deep ocean warms etc ..and ran aground on the long posts by David Lewis which opened up the Hansen - Trenberth differences on warming magnitude. Rob@18 You have explained @9 and in the post that ENSO as a cyclical phenomenon which does not contribute to a long term trend. This is difficult to reconcile with you post title "NASA scientists expect more rapid global warming in the very near future" as the La Nina comes to an end. It is not global warming if heat already sequestered in the oceans is given up to the atmosphere in an internal ENSO cycle. It is heat transfer from one part of the system to another. El Nino air temperatures may rise a lot more than sea temperatures cool, but the reverse occurs when La Nina returns. phila@21 I don't have a problem understanding heat exchange between the surface waters (down to 500-700m) and the atmosphere but when heat is given up to much deeper cool waters - the return path is much less clear to me. This has nothing to do with accepting that the oceans are absorbing a trend increase of about 0.5Wm-2. That means that the TOA imbalance exists and so does global warming. It seems that the 0.5 is much closer to the Hansen number which he suggests is due to models overestimation of ocean heat absorption and more aerosols - lukewarm - not so hot as Trenberth. -
CBDunkerson at 23:11 PM on 28 January 2012Katharine Hayhoe, Intent to Intimidate
Hayhoe's comment about 'politics informing religion' is something I've been concerned about for a long time. Many 'conservatives' in the United States rail against and continually work to undermine the constitutional separation of church and state... because they don't seem to understand that it is just as important to protect religion from being corrupted by politics as vice versa. Dr. Hayhoe is to be commended for recognizing and standing up against the perversion of her faith into a political tool, but I fear she will find it is more the norm than an anomaly in this country. -
alan_marshall at 19:30 PM on 28 January 2012NASA scientists expect more rapid global warming in the very near future (part 1)
Rob, Thanks for a great post. Very lucid. Scientists in the past have been reticent (at least publicly) in linking global warming with El Nino / La Nina. Now for the first time it is crystal clear to me how these phenomena interact. Hopefully analyses such as this will help disarm the myth about global warming slowing or stopping. -
sidd at 17:20 PM on 28 January 2012New temperature record for the Arctic in 2011
Mr. Esop writes at 22:03 PM on the 27th of January, 2012: "At Longyearbyen, Svalbard (close to 80 degs latitude), it is raining as we speak. On January 27th. Average temp for the last 30 days is 17F above the normal" This has been my fear for some years, that ocean heat will rise up and rain down upon the ice sheets. Are there timely (radar?) images available showing arctic rain ? Prof. Maurice Pelto wrote at 4:18 AM on the 28th of January, 2012: "The increased open water and warmer air have sure impacted the glaciers on Arctic islands such as Svalbard and Novaya Zemyla" Thank you. I would love pointers to more reports from the northernmost land areas such Franz Josef Land, Severnaya Zemlya, Ellesmere, and Peary Land. sidd -
Michael Whittemore at 16:01 PM on 28 January 2012Public talk: Global Warming - The Full Picture
Doug H@4 I agree that the cost will be far more if we don't do anything, I live in Brisbane and these 50 year floods are looking more like annual floods now. But my point was directed to John Cook and how he some what brushed aside the cost of a carbon tax due to compensation. The truth is this tax will cost us a fortune, no compensation and $100 a tonne carbon cost. My simple solution (not really thought through) would only be a start, but would not cause so much hardship for everyday people. -
Doug Hutcheson at 15:07 PM on 28 January 2012Public talk: Global Warming - The Full Picture
I learned a thing or two by watching the video, so thank you for that. The comments by the chap who followed you were on the money, too, but it is depressing how they will be dismissed as "left wing propaganda" by the denialisti. Michael@3 I expect that any government attempting your remedy would be committing political suicide, attractive though the approach might be. The Carbon Trading Scheme legislated in Australia offers industry some motivation to overcome the inertia of change, but we have to keep in mind that we as individuals will be paying an enormous price in the future, if we don't act now. All the people complaining that the CTS is going to cost them money are ignoring the cost to them and their children if we let the climate run out of control. Pay something now, or risk losing everything later if the worst-case scenario plays out. The climate has no ideology and doesn't care which way we vote - it is going to do what we are forcing it to do, whether we like it or not. -
michael sweet at 12:48 PM on 28 January 2012What's Happening To Tuvalu Sea Level?
Tealy, In one of your deleted posts you suggest that I said local sea level rise at Tuvalu could be 5 feet. That is the Global Sea level rise scientists expect in the next 90 years. The IPCC estimate was a minimum increase, not an expected increase. Why are you unable to understand the most basic facts??? The regional anomaly is interesting but not at all important to future projections. Focus on the global estimates which are much more important. The problem in Tuvalu is not that they have a high local anomaly, the problem is that Global Sea Level rise is expected to overtop them this century. In your posts you frequently refer to global estimates as if they were local estimates and visa versa. You will find people more helpful if you stop making assertions about things you do not understand and ask questions to help you clear up your lack of basic knowledge. Carefully read the responses so that you stop repeating the same incorrect premises. -
Albatross at 11:52 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
Tealy, FWIW, I have a PhD in meteorology. But that is irrelevant. I find your stance on professional qualifications condescending and offensive-- one does not need scientific qualifications to understand the post, just intelligence, an open mind and an eagerness to learn and to actually read the papers. Moreover, you are arguing against the many professional and respected researchers (e.g., Church) who making studying SLR their business, so you are the one railing against the professionals. But since you brought it up what are your qualifications and in which field? You post/rant was probably deleted (not by me) b/c it violated the comments policy. You might want to read them again, references to "religious cults" tend to get deleted. As for being respectful, I suggest that you respect the advice and read the papers cited by professionals on this thread, and not suggest that you are superior to people posting here. I'm sorry you feel that maligned, but truth is that you largely brought it on yourself, and your rant that was deleted was very revealing. Look up Dunning-kruger effect some time.Response:[DB] Please refrain from buying in to being dragged off-topic. Tealy is trolling with his questioning of credentials. Tealy has demonstrated the need to being tightly moderated, which he will receive until his comments conform to the Comments Policy.
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Michael Whittemore at 11:39 AM on 28 January 2012Public talk: Global Warming - The Full Picture
Carbon Tax Compensation I heard will only last for 5 years, then the price on carbon becomes market driven. It will start around $25 a tonne but can go up to $50 even $100. We will have to pay for that. A better option would be to just force power companies to develop green infrastructure. Give them a little compensation to make the transition but that's it. Within a decade or two electricity will be so cheap, electric cars will be a must. -
Tealy at 11:35 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
What happened to my previous post?Response:[DB] Your previous comment was moderated out due to multiple violations of the Comments Policy. Specifically, inflammatory and ideology. Again, please construct your comments to both comply with the policy and also be on-topic to the post on which you are placing the comment.
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michael sweet at 11:15 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
Tealy, As I pointed out to you here, the regional rise at Tuvalu is only about 2 cm per decade. This newspaper article documents a temporary 60 cm rise in sea level on the US East coast caused by changing currents. The data supports the idea that the current small excess at Tuvalu could continue for at least several more decades. The sea level rise world wide is expected to be far in excess of 5 mm/yr in two decades so we expect the current rise at Tuvalu to increase, not decrease. If you read my post to you you would not make the same claim over and over. If you read the background material you will stop making such absurd claims. -
Albatross at 11:08 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
Regarding this claim: "I have only ever tried to discuss zonal tilting or regional variations" Now that is not entirely true. 18:43 PM on 26 January, 2012: "ice melt is the lesser component of sea level rise and sea based ice contributes zero to sea level rise (Archmedes) only land based ice does. 21:24 PM on 26 January, 2012: "People say it's ice melting rise because as it's something they can see and touch, but it's a misnomer that should not be propagated. It's wrong, its patronising, and it destroys credibility to change the facts in the belief people wouldn't have understood." 23:39 PM on 27 January, 2012: "If you would like more detail here is the IPCC website showing 6 climate models of sea level rise from 2000 to 2100, and all 6 models show thermal expansion is the greater component of sea level rise accounting for about 2/3 of the total rise." 10:30 AM on 28 January, 2012: "...remember much of antarctica is very sub zero, sub zero ice still absorbs the heat, produces no melt and no sea level rise. You just get warmer sub zero ice. If you don't understand all this, then you don't have any relevant qualifications and I might as well be debating it with my barissta, at least I will get a coffee in the process. " Just a few examples demonstrating that the initial quote above is demonstrably false. Like others, I suggest that the misguide poster listen and read more before pontificating. "I have searched all through the website and find lots of articles on SLR, but very little on the zonal tilting or regional differences.In fact zonal tilting got zero hits!" That "zonal tilting" yielded zero hits should be a big clue that they are barking up the wrong tree. -
Albatross at 10:49 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
I addressed the following misguided claim and incorrect in my post at 66: "Tuvalu is caused by trade winds increase (that were possibly caused by global warming) then there would be a limit to this rise as the trade winds cannot just keep intensifying forever as the arcticle implied." No-one suggested this, but I now see how the confusion might have arisen for those who are not familiar with the climate system-- we are not dealing with a one-to-one relationship, nor are we dealing with a linear system, nor are we dealing with runaway warming. So no-one is suggesting that the winds will simply continue to increase ad infinitum. Again, from Cazenave and Remy (2011): "The spatial trend patterns evidenced over the altimetry period mostly result from nonuniform steric sea level changes (effects of ocean temperature and salinity), largely caused by wind‐driven ocean circulation changes. Such patterns are not stationary but oscillate through time on decadal/multidecadal time scale, in response to natural modes of the coupled ocean‐atmosphere system." These spatial patterns are not stationary, they are oscillations, no-one except our misguided poster is suggesting that they will increase ad infinitum. It is these oscillations that when superimposed on the underlying systematic increasing trend will either accentuate or mute the underlying trend. -
Rob Painting at 10:44 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
Albatross - "It is getting rather tiresome having certain people talking through their hats. Indeed, but other moderators have seen fit to tolerate this trolling. This person isn't here to learn, but to spray graffiti. I was hoping by now others would have stepped in to warn this person, being personally involved myself it's against the rules for me to do so. -
Albatross at 10:38 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
It is getting rather tiresome having certain people talking through their hats. This is another false assertion made by our misguided poster, "The IPCC report is for the current period as we are in 2012." The fourth assessment report was published back in 2007, that was five years ago. And some of the papers they cited were published in 2006 or earlier. Science moves on, data observations systems improve... Discussion about the mechanisms/theory of how land ice is being lost from Antarctica should be taken to a more appropriate thread. The data from Church et al. (2011) shown @63 above indicate that the loss of ice form the Antarctic ice sheet is increasing. On how this is happening is very interesting (albeit disturbing) and perfectly plausible and consistent with what we know about ice sheet behaviour and thermodynamics. But as I said, that needs to be discussed on another thread. Might I suggest this thread. -
Tealy at 10:34 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
I have only ever tried to discuss zonal tilting or regional variations. If in doubt read my posts. Start from the beginning and read my posts.Response:[DB] As Albatross has seen fit to rebut in exquisite detail (both before and after this comment), you are wrong and therefore need to re-read your own comments.
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Tealy at 10:30 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
Albatross my original post was if the regional anomaly rise near Tuvalu is caused by trade winds increase (that were possibly caused by global warming) then there would be a limit to this rise as the trade winds cannot just keep intensifying forever as the arcticle implied. You would finish up with hurricane trade winds. Somehow people have gone off in all sorts of directions from that with all sorts of other quotations and citations.Response:[DB] "Somehow people have gone off in all sorts of directions from that with all sorts of other quotations and citations."
Various participants, in a seemingly fruitless attempt to be helpful, have responded to the many and various misconceptions you have espoused. Misconceptions that have nearly dragged this thread off-topic. But no more.
You have been pointed out to be wrong now on multiple occasions on multiple, specific subjects. You then turn to complaints about how you are being treated. Desist.
Please note that posting comments here at SkS is a privilege, not a right. This privilege can and will be rescinded if the posting individual continues to treat adherence to the Comments Policy as optional, rather than the mandatory condition of participating in this online forum.
Moderating this site is a tiresome chore, particularly when commentators repeatedly submit offensive or off-topic posts. We really appreciate people's cooperation in abiding by the Comments Policy, which is largely responsible for the quality of this site.
Finally, please understand that moderation policies are not open for discussion. If you find yourself incapable of abiding by these common set of rules that everyone else observes, then a change of venues is in the offing.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.
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Albatross at 10:24 AM on 28 January 2012What's Happening To Tuvalu Sea Level?
Rob and Michael, One last post that speaks to causes of the regional changes in SLR and the relative contributions from thermal expansion and land ice. I also keep forgetting to mention that the backdrop of this post is that to this day some "skeptics" claim that sea levels around Tuvalu are either not increasing or that SLR it is not an issue, well it clearly is and will very likely get worse. Cazenave and Remy (2011) just published a paper, they conclude: "Moreover, sea level rates are not geographically uniform; in some regions like the tropical western Pacific, rates are up to 3–4 times higher than the global mean rate. We next discuss the climate‐related components of the global mean sea level rise. Over the last ∼18‐years, ocean thermal expansion contributes about one third to the observed rise while total land ice (glacier melting plus ice sheet mass loss) contribute the other two third. The spatial trend patterns evidenced over the altimetry period mostly result from nonuniform steric sea level changes (effects of ocean temperature and salinity), largely caused by wind‐driven ocean circulation changes. Such patterns are not stationary but oscillate through time on decadal/multidecadal time scale, in response to natural modes of the coupled ocean‐atmosphere system." So we now have three recent papers refuting the claim that the contribution until now has been greater than that from land ice. The misguided poster clearly misrepresented the science presented in the IPCC fourth assessment report in 2007. One does not need ever increasing easterly winds in the tropical Pacific for Tuvalu and surrounding islands to be in trouble as our misguide poster seems to think. As noted before, La nina years will become increasingly problematic in future years for Tuvalu. Additionally Willis and Leuliette (2011) [and others, e.g., Rignot et al (2011)] note that: "Furthermore, if the rate of global sea level rise continues to accelerate over the next century, it is likely that the primary cause will be increased melting and mass loss from the ice sheets in Greenland and Antarctica". -
adelady at 10:19 AM on 28 January 2012The National Center for Science Education defends climate science in high schools
muoncounter 'I can't find any first-hand source for the story about new Texas education standards.' Perhaps some of what you're after might be found here at Desmogblog
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