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Posts Tagged ‘GHG’

A Crock At “Climate Crocks”

2011/01/08 2 comments

It’s all nice and dandy for “Climate Denial Crock of the Week” to mention a video with Isaac Asimov talking of the “greenhouse effect” as the “most interesting” scientific effect of 1988 (why, isnt’t that the year of the staged Hansen visit to the US Congress). It’s a different thing to forget what else The Good Doctor had to say, about science and everything. For example:

Science is uncertain. Theories are subject to revision; observations are open to a variety of interpretations, and scientists quarrel amongst themselves. This is disillusioning for those untrained in the scientific method, who thus turn to the rigid certainty of the Bible instead. There is something comfortable about a view that allows for no deviation and that spares you the painful necessity of having to think.

There is more, all of it blatantly incompatible with the mindset of consensus-obsessed AGWers:

The most exciting phrase to hear in science, the one that heralds new discoveries, is not ‘Eureka!’ (I found it!) but ‘That’s funny …’

Clarke’s First Law – Corollary: When, however, the lay public rallies round an idea that is denounced by distinguished but elderly scientists and supports that idea with great fervor and emotion—the distinguished but elderly scientists are then, after all, probably right.

I believe in evidence. I believe in observation, measurement, and reasoning, confirmed by independent observers. I’ll believe anything, no matter how wild and ridiculous, if there is evidence for it. The wilder and more ridiculous something is, however, the firmer and more solid the evidence will have to be.

Inspect every piece of pseudoscience and you will find a security blanket, a thumb to suck, a skirt to hold. What does the scientist have to offer in exchange? Uncertainty! Insecurity!

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Martin Luther, Here I Come!

2010/11/18 11 comments

The “AGW is logically impossible” list (aka Global Warming Miracles) has suddenly jumped to 52 items, doubling in size in a little less than three weeks. As commented at the Italian version of the page, I am now only 43 items away from putting a poster at the Castle Church in Wittenberg, Germany.

Or perhaps I should find out where the bulletin boards are, at the University of East Anglia…

Cap-And-Trade, Killed By (Lack Of) Consensus

2010/07/28 1 comment

There’s much commentary of course about the recent “death” of climate-change related cap-and-trade legislation in the US Congress (eg by Krugman, Douthat and Wasserman at the New York Times).

It is not straightforward to follow all the various, complex reasonings used to apportion blame. And is all that really necessary? At the end of the day, in a modern democracy bills are approved because a suitable majority of Parliamentarians votes for them. And such a majority only comes together because a consensus is built around each bill.

In this context, Walter Russell Mead’s “The Big Green Lie Exposed” makes perfect sense. In fact, who has actually tried to build a consensus in the USA regarding cap-and-trade? Those activists liberally accusing the rest of humanity of “denialism”? Or those promising a Nuremberg-style trial to all “dissenters”? Or those more or less explicitly trying to manipulate primal fears in order to change society wholesale?

In the Bible, Qohelet says: “Whoever watches the wind will not plant – whoever looks at the clouds will not reap“. Indeed.

Lacis, The IPCC, Simple Physics And Post-normal “Science”

2010/02/10 10 comments

There’s troubles with commenting at the NYT so I will re-post some of my notes to Revkin’s “Does an Old Climate Critique Still Hold up?” here:

(a) Given all the discussion taking place now, and the glaring mistakes obvious to all, it is apparent that nobody has ever read the IPCC report at a meaningful level of detail. A professional editor and a pre-established maximum number of pages should be there for AR5.

(b) I am not sure how to reconcile Dr Hegerl’s statement “We felt Andrew Lacis’ comment reflected that he couldn’t clearly see where statements came from, which is why we strengthened the pointers from the technical sections to the executive summary” with the note to Dr Lacis’ expert comment “Rejected“. Usually, rejected comments are not acted upon.

(c) I’d suggest people drop the “Greenhouse effect is simple physics” argument. Simple physics shows that warm air moves upwards, and a room’s floor is generally colder than its ceiling. However, mountaintops are generally colder than sea-level locations. Why? Because the free atmosphere is a complex system where you can’t just apply simple physics (for a different example: think of anti-oxydants’ wonders in Petri dishes and the failure to translate that into effective anti-aging treatments in the real world)

(d) Call me old-fashioned, but I find “post-normal science” a misnomer (almost, a case of reification). “Post-normal science” is not “science” and should be defined with a more appropriate moniker.

The Star That The Greenhouse Effect Forgot

2010/02/01 10 comments

And now for some relief from the “Gate du Jour” onslaught…

Obviously there will soon be a much better explanation, but isn’t it peculiar that regarding “what may be the coolest sub-stellar body ever found outside our own solar system” with “a temperature estimate of about 441° Fahrenheit (227° Celsius)“, the explanation for some strange “color” effect in different infrared pictures is that “the atmosphere is cool enough that methane and steam absorb the light coming from below“?

In my colossal ignorance, I had been led to believe that methane and water vapour were powerful greenhouse gases. And that they would make an atmosphere warmer than it would have been without.

Maybe only on Earth 😎

The IPCC Is Never Wrong -1- Why Kevin Trenberth Is Right

2009/10/14 21 comments

Thus spoke Dr Kevin E Trenberth, Head of the Climate Analysis Section at the National Center for Atmospheric Research in the (very welcome!) Gray/Trenberth written debate hosted by the Tea Party of Northern Colorado:

I have found that the only scientists who disagree with the IPCC report are those who have not read it and are poorly informed

Contrarily to what the most argument-challenged readers of this blog might think, I fully agree with Dr Trenberth’s statement. Only, I arrive at his same conclusion starting from a very different point of view (wonder if Morano will ever try to sing a different tune?).

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I have read several chapters of the IPCC AR4 (2007) (sadly, I have not read the whole thing in full from start to end and seriously wonder if anybody ever has). Fact is, they are all written in a scientifically very valid way. As the science of climate is still full of uncertainties, then whatever the future, may it be hot, may it be cold, it will be impossible to ever find in the IPCC reports any item that may be actually considered as fundamentally wrong or misleading.

Everything is in there and its opposite, by wise [UPDATE: “wise” means “wise” in a POSITIVE way…do not mix it up with “weasel” or anything else with a bad connotation] use of words like “could”, “might” and “likely”. Even if we meet again in 2050 and global cooling is in full swing, still the IPCC reports will be, in a sense, correct. Take for example AR4-SYR-SPM (Synthesis Report, Summary for Policymakers)

page 5: Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic GHG concentrations

page 7: Continued GHG emissions at or above current rates would [note how they had so many would‘s to distribute, they added one too many here] cause further warming and induce many changes in the global climate system during the 21st century that would very likely be larger than those observed during the 20th century

The meaning of “very likely” is explained in the box Treatment of uncertainty” in the Introduction of the Synthesis Report (page 27):

Where uncertainty in specific outcomes is assessed using expert judgment and statistical analysis of a body of evidence (e.g. observations or model results), then the following likelihood ranges are used to express the assessed probability of occurrence: virtually certain >99%; extremely likely >95%; very likely >90%; likely >66%; more likely than not > 50%; about as likely as not 33% to 66%; unlikely <33%; very unlikely <10%; extremely unlikely <5%; exceptionally unlikely <1%.

Since “very likely” stops at 90%, it means that the IPCC experts agree that there is a 10% probability that most of observed temperature increases might not be due to “increase in anthropogenic GHG concentrations“. And that there is a 10% probability that the 21st century will not see anything larger than the 20th century has seen.

So if anything like that actually happens, well, the IPCC AR4 has already included that possibility, has it not?

Interestingly, if the IPCC work were to be presented as a scientific article, and the p-value associated to the null hypothesis (that observed temperature increases have nothing to do with increased GHG concentrations) were 0.1 or 10%, most if not all journals would deny publication.

(continues)

It’s All CO2! It’s All AGW!

2009/10/05 10 comments

There is a beautiful discussion going about “Hockey Stick Redux” (HSR), the Oct 1 entry of brand-new blog “Cruel Mistress – Being Human on a Harsh Planet” by Dr Ben Hale (I reached it by following Roger Pielke Jr.’s recommendation to visit “Cruel Mistress).

And that’s a great blog name, by the way…finally somebody recognizes how Earth is not made of fragile crystals and china…

Anyway…the beauty of the discussion is three-fold.

(1) Ben Hale is no AGW skeptic, and yet he has not imposed any censorship, whimsical or otherwise (by the way: let’s welcome Ben to the Joe Romm (dis-)Appreciation Society! – with Romm now openly toying with Fascist character-assassination techniques).

(2) For the time being, HSR is a place where AGW believers and skeptics can exchange disagreements rather than outright insults. One suspects, that is because of the absence of the “usual suspects”, the clique of self-appointed AGW True Believers, the Osama bin Climate‘s fond of censorship and coprolalia

(3) The HSR comment area is the best place where to see AGW skepticism at work, with plenty of nuances, disagreements, sentences at the opposite ends of some scales on the part of people that only agree that the AGW brouhaha is a wild overstatement. If that doesn’t disprove the cretin label of “Denialists”, I don’t know what will.

There are plenty of gems among the HSR comments (also some funny ones I have already written about). For example there is a great explanation by a PhysicsGuy (Oct 3, 10:31am) of what peer-review is and is not, and how it all went wrong regarding AGW, ending with the following:

To summarize, a pro-AGW paper being peer reviewed by other climate scientists is probably (like Briffa appears to have been) being considered favorably because of its results, is being reviewed by reviewers who know and often have co-authored with the paper’s writer, likely contains undisclosed data treatment that influences the result, is being reviewed by reviewers who do not have the mathematical background to spot subtle statistical errors, and is being judged on “conformity to accepted practices in the discipline” in a discipline that is evolving so quickly that the “accepted practices” themselves are not well validated.

I’m not sure that this kind of peer review means what many of us appear to think it does.

And now for one of my own little contributions. I have had an exchange with Ben Hale about my use of the slogan “It’s all CO2! It’s all AGW” as the defining one for the current scientific consensus/dogma on AGW.

Ben replied:

Are reputable people actually saying this? Even with my basic and flawed understanding of AGW, this is expressly not what people are saying. I call straw man.

That led me to elaborate more on the topic (see here and here and here). I am putting it all together below.

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The overwhelming importance in contemporary mainstream climatology of CO2/GHG warming, and of the human contribution to it, can be read in a Jan 27, 2005 blog (“What If … the “Hockey Stick” Were Wrong?” by stefan) on Real Climate:

The main reason for concern about anthropogenic climate change is not that we can already see it (although we can). The main reason is twofold.
(1) Carbon dioxide and other greenhouse gases are increasing rapidly in the atmosphere due to human activity. This is a measured fact not even disputed by staunch “climate skeptics”.
(2) Any increase in carbon dioxide and other greenhouse gases will change the radiation balance of the Earth and increase surface temperatures. This is basic and undisputed physics that has been known for over a hundred years.

The key words are main, concern, anthropogenic climate change, due to human activity. That is, RealClimate and (by simple logical extension) the scientific consensus on Climate Change, are concerned because human activities are increasing ghg’s (and especially, CO2) in the atmosphere.

What was the IPCC established for, after all, if not to investigate the warming effects of CO2/GHGs emissions from human activities? Here’s from the FAR (1990) as per Wikipedia:

…emissions resulting from human activities are substantially increasing the atmospheric concentrations of the greenhouse gases: CO2, methane, CFCs and nitrous oxide. These increases will enhance the greenhouse effect, resulting on average in an additional warming of the Earth’s surface…

The key words there are human activities, increasing the atmospheric concentrations of the greenhouse gases, additional warming.

Hence: “It’s all CO2! It’s all AGW!”…a slogan that has all the defects of a slogan (e.g. simplification), and yet conveys the two most important aspects of the AGW scare and dogma. “Most important” by a long shot.

Let’s look at how long a shot, from a purely logical point of view. What would happen if human activities would not be emitting CO2/GHGs? There would be no IPCC. What would happen had it been thought there were no AGW, Anthropogenic Global Warming? There would be no IPCC.

That is, CO2/GHGs and AGW are necessary conditions for the whole IPCC/AGW scientific consensus to exist.

What would happen if the only driver for climate change were human emissions of CO2/GHGs? There would still be an IPCC. What would happen if the only climate phenomenon of note were AGW? There would still be an IPCC.

That is, CO2/GHGs and AGW are sufficient conditions for the whole IPCC/AGW scientific consensus to exist.

Therefore, since CO2/GHG emissions and AGW are (together) necessary and sufficient for the IPCC and the AGW scientific consensus to exist, the IPCC and the AGW scientific consensus are for all intents and purposes exclusively dedicated to CO2/GHG emissions and AGW.

“It’s all CO2! It’s all AGW”. QED.

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That’s why, as remarked by another commenter “MrPete”, the “primary policy push” is about GHGs, and in particular about CO2.

In a saner world, in fact, we would have gone a long way already to eliminate that other, and shall I say even more established source of climate change and untold numbers of respiratory diseases and deaths, namely soot. And especially the soot generated by primitive cooking stoves.

It is one of the biggest tragedies of the AGW consensus: we could have in a month a 10-year worldwide plan to physically eliminate all human emissions of soot at a relatively minor cost…look instead how many person-years are being wasted for a Copenhagen deal that everybody well knows it will be ineffectual and costly at best.

But what can we do? After all…It’s all CO2! It’s all AGW!

Finally, A Model That Does Exactly What It Says On The Tin

Or…”What Are Climate Models Good For”

Instant climate model gears up – Simulation tool gives rapid feedback on implications of policy changes“, says “Nature News”.

What’s so good about it? Well, for once everybody should join in the celebration of a climate model that is presented for what it is (a policymaking tool for “negotiators to assess their national greenhouse-gas commitments ahead of December’s climate summit in Copenhagen“) rather than for what it is not (a scientific tool “used for a variety of purposes from study of the dynamics of the climate system to projections of future climate“, as rather naively claimed on Wikipedia).

Hooray for honesty and openness!

Monbiot & Schmidt 0 – Plimer 1 (After Spectacular Own Goal)

2009/09/15 16 comments

Alternative titles: “Dear George, In Any Sport, No-Show Means Automatic Loss“, and “Don’t Mention Gish If You Can’t Debate

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I am not at all surprised that George Monbiot (and by inference, Gavin Schmidt) have lost their public (virtual) debate against Ian Plimer even before having a public (real) debate. That’s because:

  • I have been following Monbiot’s antics for quite some time, and have never been struck by the power of his at-times-downright-silly arguments
  • Likewise concerning Schmidt, a known debate (sore) loser
  • Skeptic vs. Climatechanger debates are few and far between, and not for the lack of willing skeptical debaters (one suspects, it’s because skeptics invariably win, just like against homeopathy practitioners, UFO believers, creationist/ID proponents, chemtrails counter-conspirators, etc etc)
  • Plimer is no debate spring chicken, once described as having a “street-fighting style

Why has Plimer won the debate? Because the end result is that Monbiot has refused to publicly debate with him. And in any sport, failure to show up automatically makes you a loser.

This is too bad as Schmidt’s responses look even more impressive than Plimer’s bunch of heavily-sounding questions (the actual bait). And Plimer’s non-answers to Monbiot could have made the basis for a smooth, trouble-free attack/counterattack to Plimer’s argument.

If Monbiot could sustain a debate, that is. I have my doubts.

The Monbiot/Schmidt couple took the Plimer bait actually a tad too easily. Evidently knowing how to make opponents fall flat on their faces even when apparently much more powerful than him, all Plimer had to do is artificially concoct an “escape route” that would allow Monbiot to declare himself the winner without actually having won anything.

The “escape route” is Plimer’s refusal to answer in print. And Monbiot, shall I say OF COURSE, eagerly took it, unable to understand the consequences.

Isn’t it more heartwarming to be able to tell one’s own troops about how bad the enemy is, rather than getting into a dangerous, live debate with that same enemy?

Especially when one has extremely poor argumentative skills, like Monbiot when he includes the mention of the “Gish Gallop“, “named after [creationist] Duane Gish […] a special case of fast talking (the technique famously employed by Snake Oil Salesman that confuses people with fast long strings of words long enough to convince them to buy snake oil“.

Yes, but: people like Michael Shermer (and Ian Plimer, by the way) have actually debated with Gish. They haven’t just sat at their desk whining about the Gish Gallop.

————–

Now we will only get Plimer on Thursday 12 November at 2 Savoy Place, London WC1, where he “will give a 30 minute lecture on global warming and then take questions/points from the audience for 60 minute“.

I will believe in that only when I see it happening, by the way…whose kneecaps is Plimer going to try to (figuratively) break? 😎

Northeast Passage’s “First Known Commercial Shipment”? Almost

2009/09/14 4 comments

Andy Revkin at DotEarth’s “Welcome to Earth’s ‘New’ Ocean: The Arctic” (about the navigation of the “Northeast Passage” by two German ships) has not yet found time to reply to my question as outlined below:

In Tom Nelson’s blog there is a link at Answer.com where several sources (including Wikipedia) repeat information about the Northeast Passage (Northern Sea Route) progressively becoming more and more easy to navigate during the last few centuries, of several expeditions going all the way decades ago, of commercial exploitation from 1877. Would Mr Revkin be so kind as to comment, and perhaps clarify what he and/or Lawson W Brigham exactly meant with “this is, indeed, a first“. – thank you in advance

Revkin’s actual words include “first known commercial shipment” and “Lawson W. Brigham, a longtime source for anything related to Arctic shipping, confirmed that this is, indeed, a first“. Yes but…a first of what? If “commercial exploitation began in 1877” then the latest “first” needs some good qualifier. Here’s what the Company managing those German ships actually claims in their website (sep 9):

We are all very proud and delighted to be the first western shipping company which has successfully transited the legendary Northeast-Passage

Trade magazine Break-bulk appears to confirm:

The two vessels will then be the first non-Russian commercial vessels to make it through the Northeast Passage from Asia to Europe

Was this all too difficult to read and understand? Would the explanation of the “non-Russian” bit have removed too much from the news for it to get any space in the newspaper?

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I am not sure if I will ever get an answer from Revkin.

What I am sure of though is that a little less ambiguity and a little more explanation on his part would have been quite welcome. Otherwise readers might get the impression that either the Northeast Passage is ready for leisure yachts, or that it has been forever closed by giant chunks of ice for millennia…

climate science: UK TO HOLD CLIMATE WEEK

2009/07/12 1 comment

At The UK Hadley Centre, They Know Something Nobody Else Knows…

2009/06/09 9 comments

…or alternatively, somebody has just used giant amounts of computing power to provide the UK Government’s Defra (Department for Environment, Food and Rural Affairs ) with antiscientific numbers on alleged future climate “forecast”, “predictions” or “projections” (pick your preferred choice…).

What’s happening? Since last Sunday, there has been a curious slow-feeding of news about an upcoming “UK Climate Impact Projections” document prepared by the Met Office’s Hadley Centre for Defra, “which is trying to plan for future changes brought about by global warming“.

Even more curious is the fact that as of today neither the Hadley Centre’s website nor DEFRA’s make any mention of such document. Full results are expected by June 18, so we will have to rely on news reports in the meanwhile.

Google News shows articles from The Daily Telegraph, Sunday Times (and again), Sky News, Daily Mail, Southern Daily Echo, with mentions of 41C in London, vineyards all around, a Mediterranean climate in Devon and a list of expected temperatures at county level.

Since there is no original document to read, those news reports must have been based mostly on each other, and hopefully at least one on some sort of “hidden” press release. And in fact, there is at least one section that appears in most articles pretty much unchanged:

Some may question how the Met Office can make predictions a lifetime into the future, when it struggles to produce forecasts for the next few months. However, climate change impacts are predicted to be so strong that, over decades, they are easier to predict than short-term changes.

There are positive and negative aspects to the text above. Whoever wrote it, they had to face the fact that the time when multidecadal climate projections would be left unchallenged, has ended some time ago. Therefore they had to imagine what climate skeptics would question, and come up with some sort of an answer. Trouble is, the answer is no good at all.

  1. They are admitting that the state of the climate in the long term is uncertain
  2. There is a misuse of the word “predictions” (see below)
  3. The author tries to convey the idea that future climate is easier to forecast, the stronger the “climate change impacts”. But this means that not even the people at the Hadley Centre are confident in the projections computed in anything but the worst possible scenario (every other scenario having weaker climate change impacts, is by definition more of a struggle to predict)

Perhaps more importantly, the trouble with long-term climate predictions is not just due to their intrinsic temporal timeframe, spanning decades. Even admitting that as a possibilty (and I have my strong doubts about it), still the problem of how to go from planet-wide analyses to a regional level has not been solved. And by regions I am talking “continents”.

How did anybody at the Hadley Centre manage to compute anything meaningful at the level of Yorkshire or East Anglia? Is there anything they have not told us, a major breakthrough in climate science that will be revealed to the masses by Thursday next?

Or have they just computed and published figures that have no basis in Science?

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Another antiscientific aspect is in the use of words. I am not talking about the journalists…those are forever going to mix up “prediction” and “projection”. What is wrong is when scientists, or in any case people that should know better, add to the confusion by mixing those words up.

Look at the “answer” text above (that we can assume having been written by somebody at the Hadley Centre or Defra, the only people with access to the original document): “impacts are PREDICTED“.

Sky’s weather presenter Lucy Verasamy says: “These PREDICTIONS“.

A Met Office spokesman says: “These FORECASTS“, “Our PREDICTIONS“.

Myles Allen, head of climate dynamics at Cambridge University, is quoted: “Cities in the Midlands and south, ARE GOING to start experiencing some increasingly uncomfortable summers.

There might be very few things I understand about climate, but one there is: whoever speaks of PREDICTIONS or FORECASTS concerning the climate many decades in the future, they have failed to understand an extremely important aspect of climatology.

Live Blogging From RGS Geoengineering Debate In London

2009/05/14 3 comments

I am at the Royal Geographical Society debate on geoengineering, with Paul Johnston from Greenpeace and Prof. David Keith, one of the world’s authorities on geoengineering as a way to counteract climate change.

So far Johnston has expressed a heavy does of skepticism on any technology for intervening in the climate. Keith is not making a strong case against the list of issues working against geoengineering, such as the possibility that will be used independently or even as some sort of weapon.

Update: Keith is now moving towards asking to know even if nobody will do any intervention immediately. Johnston replies that money is limited and geoengineering may take it away from “real solutions”

Update 2: Tom Clarke, chair, comes to the rescue asking if there is any alternative given the lack of prospect for any emission reduction. Johnstone says that geoengineering may bring instability when things will be going very badly.

Update 3: Time for questions. First is about the problem of definition of geoengineering. Keith says there are two kinds, solar radiation management and CO2 removal, they are different things.

Update 4: Question on CO2 extraction. Keith is working about it. Scrubbing from the air or from the power plant? First option means you can build it where it is cheaper to build.

Update 5: What is the solution if Greenpeace is so against geoengineering? Johnston wants a much more thorough understanding of the way the atmosphere will react before going the geoengineering route.

Update 6: Keith says if we were really serious on cutting emissions we would be cutting it more aggressively. It is a moral choice, if we cannot cut geoengineering the way forward. Keith affirms he has big concerns too and talks about them,

Update 7: Scientists says he’s terrified about methane in the Arctic: is Greenpeace willing to live with that risk? Other question: geoengineering looks often like a local intervention like seeding clouds: we should expect to be struggling with the difficulty of understanding it all. Johnston talks about huge uncertainties, “at the moment is a gamble”. Keith on intractability: it’s a hard problem. Some of the schemes may be harder. Must start with little interventions and then proceed with the understanding.

Update 8: Keith mentions how after 9/11 we have learned about the effects of airplanes as we had them all grounded over the USA. Yes it is hard, but we cannot do much on the emissions side. We need to do some research on geoengineering.

Clarke asks Johnston if Greenpeace would agree on “free” and “cheap” experiments in geoengineering. Answer is that they need assurance that it will not prevent “the full deployment of an alternative energy [generation] system”

Update 9: Johnston doesn’t want to see commercial interests involved as in the ocean fertilization debacle. Keith agrees.

Final two questions: since we cannot predict what can happen, can we use the 200+ volcanic eruptions to understand better? Also large-scale or small-scale projects, such as improving cooking stoves at community level?

Keith talks about the possibility of biofuels (?) especially in the tropics. Johnston says they had been interested about it for years, and that they want to more about it before investing in large-scale interventions. Doesn’t want to see it as a way to deal with biological waste.

Update 9: Final final two questions. Won’t the politicians think short term and choose geoengineering to avoid having to deal with cutting emissions? Don’t we need research just to start an informed debate about geoengineering, instead of having to deal over and over with uncertainties that never go away? Isn’t much of the technology already available right now? Can we use geoengineering as the “nasty medicine” to scare the politicians into doing something about emissions?

Johnston doesn’t think it would work as a “stick”. He says we need a good reason and guidelines for carrying out geoengineering research and “throwing money” at it. Talks about avoiding unjustified optimism.

Update 10: Johnston suggests to go for research without immediate commercial exploitability. It’s now Keith’s turn: nobody is doing anything serious about emissions, even in high-rhetoric Europe. He says that not enough people have been convinced. He doesn’t “know why”, doesn’t “get it”. “We just haven’t made the sale” to the politicians so they are not serious about global warming.

Keith continues saying GM food are a not-so-serious problem for the experts but the public is very worried about it. For climate change, it’s the other way around.

Johnston thinks it’s difficult to people to conceive the scale of global warming, so they become despondent. Politicians have contributed to the perception that climate change is unavoidable, by doing nothing. People are already starting to adapt.

End of the debate – some more details and considerations will be posted later

Another Good Argument About The Greenhouse Venus Hypothesis

2009/03/23 6 comments

From JoNova’s “DeSmog accidentally vindicates The Skeptics Handbook

The next time a warmist yells Venus. Just yell back Mars. Its’ atmosphere is 95% carbon dioxide and yet, oops – it’s not 400 degrees, instead, it’s minus 40. The warmists with half a brain might come back at you with the explanation that Mars’s atmosphere is thin, but that’s just fine. That IS the point really isn’t it? Mars is cold because it’s atmosphere is so thin, and for exactly the opposite reason, that’s why Venus is Hot.

ps Hugs&kisses for linking to Omniclimate, of course! A list of my Venus-related blogs is available at this link.

Kyoto and Sons of Kyoto: A Few Months Then The Truth

2009/02/16 2 comments

The text below has been published today on Benny Peiser’s CCNet. The original author is Col. Guido Guidi, well-known Italian TV metereologist, and main author of the Climate Monitor blog (in Italian).

Col. Guidi is a vocal advocate for a return of Climate Science to a proper scientific rather than mostly political debate and has kindly asked me to translate one of his blogs in English.

Kyoto and Sons of Kyoto: A Few Months, Then The Truth
By Guido Guidi, 13 Feb 2009

With minuscule if any expected practical effects, and a prohibitively expensive price tag, no wonder the Kyoto Protocol has elicited little enthusiasm left, right and centre of the climate debate. And at times, it has even looked simply too easy to hijack for many interests that have little to do with climate and/or the environment. For example, the whole European emission trading market scheme has been rather more successful as yet another chance for financial speculation, than as a beaconing example for sustainable development policies.

And yet, future “Sons of Kyoto” will likely be even more glorified, ever more ineffective version of the original Protocol. There is still a little ray of hope though, because in between one and the other International Conferences the Global Warming debate could be finally and definitively settled, with a return to the good old days when Earth’s climate could be analysed in a more objective manner. Here’s why.

In recent years, atmospheric carbon dioxide has been under round-the-clock watch, and global temperature too. Both have increased for a relatively long time, although with very different trends, with temperatures even showing a rather timid cooling during the last decade. Could this be enough to tip the balance of evidence against anthropogenic global warming? Maybe not, as the two factors might still be linked some other way within the vast, mostly unknown complexities of climate dynamics.

In any case, before even trying to understand how carbon dioxide may affect temperatures, we should perhaps investigate the anthropogenic and natural variabilities of this very common gas. The problem is not trivial: palaeoclimatic studies clearly show that high- and low-frequency past climatic changes have led to important changes in atmospheric CO2 concentration. And in all circumstances, temperatures have increased before carbon dioxide concentrations. Understand exactly how much our emissions actually contribute to measured CO2 increases could therefore be much harder than previously thought …unless that is, if something truly extraordinary were to provide us with a key to the solution.

Ironically, such an opportunity might be presenting itself due to the currently disastrous and apparently ever-worsening economic situation. For several months we have been hearing of drastic declines in industrial production. Percentages are nightmarish, with some sectors (especially among those that produce the most CO2 emissions) crashing by a minus 50%. With consumption going down as well, this crisis might drastically reduce emissions, more than any international agreement ever will.

The question is then: what will happen to the rate of growth of CO2 concentration into the atmosphere? Interesting scenarios may be unfurling before our eyes. Let’s make some hypotheses.

Imagine at first if CO2 will stop growing, or decrease significantly but without significant changes in temperature trends. That would mean Kyoto and its Sons deserve to be to trashed, as our activities would be shown as capable of changing carbon dioxide concentrations but not temperatures, and therefore not the climate.

Think instead if CO2 measurements keep growing, and temperatures continue to fluctuate following natural climate forcings. That too would mean Kyoto and its Sons deserve to be to trashed, as CO2 variations would demonstrably be primarily a response to natural temperature variations, starting from the current interglacial stage and the exit path from the temporary cooling known as the “Little Ice Age”.

Third and last option, if CO2 concentrations stop growing and temperatures keep falling or remain stable, even when the Sun and the oceans – largely responsible for the recent, slightly cooling phase – will have had time to run through one of their cycles, then and only then the real impact of anthropogenic global warming might finally become clear. It would mean that the post-Kyoto agreements have to be implemented rather seriously, that is with little or no political and financial speculation.

We could truly be on the verge of very interesting times for CO2 and the climate, and some hard facts could begin to show in the very next few months. I can’t wait to see how it all unfolds.

CO2 Warming? The Lab vs. The Atmosphere

2009/01/12 12 comments

How many times have we been told that the consequence of an increase in CO2 concentration has to be an increase in temperature because laboratory studies have incontrovertibly shown the “greenhouse” nature of CO2 (and other gases)?

And yet, the (negative) reply to those claims is very simple.

Everybody can incontrovertibly verify in their own kitchen that warmer air moves upwards, and colder air downwards. We can call that the “greenhouse” nature of height, to be  translated in mathematical models whose runs will surely convince some climate scientists about the existence of sizzling mountaintop conditions.

Now just imagine going up the K2 or the Aconcagua with such a climatologist, endlessly referring to progressively cooler temperatures as “noise masking the overall warming trend”…

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To anticipate the usual comments: the above cannot be used to disprove the greenhouse effect of CO2 in the atmosphere. But it shows that such an effect has to be proven in the real world, rather than on paper simply by reference to what is found in laboratories and using theoretical physics.

Nothing to Show: AGWers’ Big Stumbling Block

2008/11/27 16 comments

UPDATE NOV 29: William M Connolley says he is not impressed by Romm’s list either

There’s an underlying feeling of desperation in Joe Romm (ClimateProgress)’s “What are the near-term climate Pearl Harbors?, a list “of what might drive action strong enough to avoid the worst“.

The list includes the Arctic “ice-free before 2020“, “superstorms like Katrina“, “a heatwave as bad as Europe’s 2003” , and the 2012 IPCC Fifth Assessment Report (perish the thought it might be less catastrophiliac than the Fourth Assessment Report…).

Note that Romm’s blog has been echoed by Heliophage, on Andrew Revkin’s Dot Earth, and in Nature’s Climate Feedback. An unwise move, if you ask me: one wonders what people would make if they knew that those claiming to work towards saving Planet Earth, are actively hoping disasters of all sorts befall upon us.

Talk about striving for unpopularity!!!

The desperation is evident in the fact that a person allegedly as well-informed on climate stuff as Romm, comes up with wholly inappropriate examples. Katrina was a big storm but not more superstorm than other hurricanes (Romm even acknowledges this point), and the destruction of New Orleans was evidently a matter of bad engineering and incompetent relief management. Didn’t he have anything better to put forward?

Likewise for the European heatwave of 2003. And even more importantly: neither Katrina, nor the European heatwave, can be linked to Climate Change and/or Global Warming. And so if, say, another heatwave will materialize, it will tell us absolutely nothing about Climate Change and Global Warming.

Actually, looking at the list of 9 items posted by Romm, the only ones that may provide ammunitions to the AGW cause may be the ice-free Arctic, and “accelerated mass loss in Greenland“.

Most likely, Romm is simply and perhaps unwittingly acknowledging the fact that for all the huffing and all the puffing, there is very little that AGWers can show to support their claims.

Look at when Revkin (a journalist I am grudgingly but steadily learning to respect) makes a very clear point to Romm:

As I [Revkin] wrote in 2006 (”Yelling Fire on a Hot Planet“) problems that get people’s attention (and cause them to change) are “soon, salient and certain” and the dangerous aspects of human-forced climate disruption remain none of those things

In other words, the dangers of AGW are not about to happen, they are not strikingly conspicuous, and they are not sure or inevitable.

And what has Romm got to reply to that? Very little. Actually, almost nothing: he spells out some kind of humanitarian deathwish, a desire for a big climate crisis; makes a critical point against journalists (who doesn’t); and decries how he understands things but most people don’t:

Multi-hundred-billion-dollar-sized government action happens only when there is a very, very big crisis […] labeled as such by very serious people who are perceived as essentially nonpartisan opinion leaders […] bad things must be happening to regular people right now […]

Better journalism would help. […] We simply don’t have a critical mass of credible nonpartisan opinion leaders who understand the nature of our energy and climate problem.

Revkin’s “soon, salient and certain“, by the way, is a quote originally from “Helen Ingram, a professor of planning, policy and design at the University of California, Irvine.

Won’t Prof. Ingram be excited upon hearing that salience is not a problem, but persons not being bright enough is…

The supreme pinnacle of irony, in the Romm/Revkin exchange, lies in the former’s misunderstanding of the latter’s point about “certainty“. In 2006, Revkin noted that:

Projections of how patterns of drought, deluges, heat and cold might change are among the most difficult, and will remain laden with huge uncertainties for a long time to come […]

While scientists say they lack firm evidence to connect recent weather to the human influence on climate, environmental campaigners still push the notion […]

Romm’s reply? Another accusation, refusing to acknowledge Revkin’s first point (emphasis in the original):

You [Revkin] understand this but you don’t convey this to your readers: Doing nothing or doing little eliminates the uncertainty.

Romm’s near-term climate Pearl Harbors post, actually, does look suspiciously as a way of “pushing a notion” the non-scientific notion of connecting recent weather to (future?) climate change.

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The above doesn’t look very promising for the AGW movement.

I am actually starting to think that the problem is in the fact that most AGWer haven’t grasped the nature of the issue they are concerned about. And so they use the tools learned to protect pandas or clean up the Hudson river. And for most intents and purposed, they fail: because, as Revkin has realized, Anthropogenic Global Warming, aka Climate Change, truly is a completely different beast.

The “Argumentum ad Timorem” and the Failure of Climate Models

2008/11/25 2 comments

Fellow netizen LM reminds me about Mark Buchanan’s “Thesis” op-ed in Nature Physics: “Less reticence on nonlinear climate change” (May 2007, Vol. 3, p. 291). A few extracts:

“…There are so many factors involved [in global climate] that no one can be absolutely sure […]
[Computational models] always seem open to legitimate criticism given the number of parameters they contain […]
The latest and biggest model may be ‘the best’, in some sense, but that doesn’t mean it is any good […]
What we shouldn’t be reticent about are the inherent dangers of strongly disturbing a highly nonlinear system that we’re not close to understanding, and on which our lives depend. We may not know the future, but we can have confidence that it won’t unfold gradually and predictably. There will probably be plenty of surprises, driven by instabilities and positive feedbacks. Precaution would seem very well-advised.”

(by the way: a trip to the local Library and a few days of wait for that magazine to be delivered there are in order…nice to see how “Nature” opts for the milking of $32 out of its readers rather than the free and full dissemination of articles on an issue about which they claim “time is running out“…)

Buchanan’s point is as interesting as it is flawed. And it is interesting because it can be used:

  1. to argue that climate skeptics have been right all along: climate models are no good, and
  2. to illustrate yet another example of out-and-out catastrophism, taking “change” as synonym of “bad”, and
  3. to elucidate the flawed reasoning behind appeals to fight Climate Change in the name of the Precautionary Principle, with the Argumentum ad Timorem of accepting AGW as a given, out of fear for its consequences.

BYE-BYE MODELS
Wittingly or otherwise, Buchanan is suggesting that all the work done to model the global climate has been futile at best:

  1. Models have inherently flawed results “no one can be absolutely sure” of (actually, that’s an euphemism). We can’t even tell if the best model is “any good”
  2. Model have brought us nowhere in our quest to grasp the evolution of climate, “a highly nonlinear system that we’re not close to understanding”
  3. Models can’t tell us much or anything at all about the future they purport to be describing. We can only have confidence in the fact that “there will probably be plenty of surprises”

No need to spend millions of dollars to figure out the above: even RealClimate acknowledges that climate models are “scenarios” and not “predictions”. It is not just a matter of building more powerful computers: no model will ever be able to take into consideration a future volcanic eruption, for example, as the actual start and end dates cannot be fathomed in advance by any computer we can dream of.

Everything considered, in Buchanan’s view models become a big waste of time, and of money, with the situation made all the worse as models are what politicians refer as predictive tools, when trying to conjure up ways to prevent a climate catastrophe.

Climate skeptics, wondering for years what the value could be in a multidecadal computer simulation with no chance of direct verification, truly may feel vindicated.

CHANGE IS ALWAYS BAD (DON’T TELL OBAMA)
Buchanan takes it for granted that climatic reactions will always be bad. And he brings his reasoning to its logical conclusion:

[…] Talk of a catastrophic shutdown of the North Atlantic Conveyor, or of possible ‘runaway’ global warming, isn’t irresponsible hysteria; it’s plausible speculation that is consistent with everything we know about nonlinear sysems. […]

Cue troublemaking “instabilities” and ominous “positive feedbacks”.

Yet, if we can only expect that in the future “there will probably be plenty of surprises”, why wouldn’t positive surprises be just as likely to happen as negative ones? For example: a more benign global climate, more rain in the deserts, fewer/weaker hurricanes, etc etc.

It’s exactly because we do not understand the climate, that everything and anything can happen in the short-, medium- and long-term.

FLAWED REASONING BEHIND THE ARGUMENTUM AD TIMOREM
Upon casual reading, models appear pretty much irrelevant in Buchanan’s description: the real point of climate change worry is not the uncertain stuff the models indicate, rather that we shouldn’t be “strongly disturbing” the climate because we do not know how it might react. That’s a good example of the Precautionary Principle: don’t do it if you have the remotest chance of hurting/killing some human (or animal) in the process.

And it’s also an “Argumentum Ad Timorem”, a reasoning based on fear: don’t touch anything, it might break!

In other words, Buchanan recommends precaution in face of admitted, abject ignorance and outright fear of what could happen. Note how the phraseology implies that Homo Sapiens is an extraneous body to the rest of the Biosphere. Quadrillions of microorganisms can “breathe” in and out as they please, yet it’s the animal called human that is singled out as the Strong Disturbance.

And how can we define what “strongly disturbing” means, in order to avoid doing that? After all there are many ways in which we (as individuals, and as a species) interact with the highly nonlinear system we live in. It’s not just CO2 emissions: people cut trees, replant forests, build roads, turn on stoves, cover green fields with industrial estates. One feels that unless the human race is trimmed down to 10,000 or less by tomorrow, we are bound to be “strongly disturbing”, whatever we do. Alternatively, by opting for voluntarily holding one’s breath, again we can stop disturbing (within a few minutes) whatever we have been disturbing so far.

Often, the Precautionary Principle appears as unassailable as it is paralyzing. But there is a way out, in matters of Climate Change.

In fact: why is Buchanan worried about CO2 emissions? Because climate models suggest that emissions may lead to changes in global climate. But at the same time, those same models are not good enough to make Buchanan limit his worrying.

With an understanding far from complete, and little clue on how the system will actually evolve, Buchanan finds himself fearing any “strong disturbing” of a system that we have been living with for thousands of years. Hence the Argumentum ad Timorem, whose actual source is in the models, not in the “disturbing”. Like a cancer test reporting too many false positives, worrisome-yet-too-uncertain models are less than useless: they are dis-useful: effectively, harmful.

Remove the models, and the very bases for the Precautionary Principle and the Argumentum ad Timorem go with them. And didn’t we show a few lines back, that climate models are a big waste of time, and of money?

Is There Any Industry Making Use of the Greenhouse Effect?

2008/09/28 8 comments

Yes, it is a genuine question. And no, I do not want to hear about Al Gore / other politicians / greenies / lobbyists.

Is there any type of industry making use of the greenhouse effect? I understand that CO2 is added to actual greenhouses, but not because it is a GHG. Would be interesting to find out if such a world-changing phenomenon is or has been of practical use.

Climate Models Are Correct (And Useless)

2008/08/26 2 comments

Climate models are correct indeed. Because, as Bill Clinton would love to say, it depends on what the definition of “correct” is.

In the real world, climate models cannot be falsified by a single observation (modelists say it’s “only weather”), or by a set of short-term observations (they call it “just a specific trajectory”).

In theory, one could wait a sufficient number of years in order to statistically check if the world has actually got warmer, but in practice models don’t include volcanoes, clouds, solar activity, etc: therefore, even if observations diverge from the models, all the modelists will do is find a “culprit” that can justify the discrepancy.

For the 1940-1970 cooling climate, they say “it was the aerosols”. Never mind that it could be a made-up story.

RealClimate’s own Gavin has said in the recent past, there is no interest in verifying if models are correct or not. Instead, the “right question” appears to be: “are there analyses that will be made over the next few years that will improve the evaluation of climate models?”

It should go without saying that in such a situations, models have no predictive capability beyond chance and they are for all intents and purposes useless.

Imagine modelling a human being as a heart pump with tubes coming in and out, and then when the patient dies of tuberculosis, having the superciliousness to state “the model is correct” instead of understanding that humans have a pulmonary system too (and a lot of other systems).

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