Posts tagged ‘feedback’

Matt Ridley's 10 Questions For Climate Alarmists

As I have read Mr. Ridley over the years, I have found him to have staked out a position on anthropogenic climate change very similar to mine  (we are both called "lukewarmers" because we accept that man's addition of greenhouse gasses to the atmosphere warms the world incrementally but do not accept catastrophic positive-feedback driven catastrophic warming forecasts).

I generally find room to nitpick even those whom I largely agree with, but from my perspective, this piece by Ridley is dead on.   (thanks to a reader for the link)

Best and the Brightest May Finally Be Open To Considering Lower Climate Sensitivity Numbers

For years, readers of this site know that I have argued that:

  • CO2 is indeed a greenhouse gas, and since man is increasing its atmospheric concentration, there is likely some anthropogenic contribution to warming
  • Most forecasts, including those of the IPCC, grossly exaggerate temperature sensitivity to CO2 by assuming absurd levels of net positive feedback in the climate system
  • Past temperature changes are not consistent with high climate sensitivities

Recently, there have been a whole spate of studies based on actual observations rather than computer models that have been arriving at climate sensitivity numbers far below the IPCC number.   While the IPCC settled on 3C per doubling of CO2, it strongly implied that all the risk was to the upside, and many other prominent folks who typically get fawning attention in the media have proposed much higher numbers.

In fact, recent studies are coming in closer to 1.5C - 2C.  I actually still think these numbers will turn out to be high.  For several years now my money has been on a number from 0.8 to 1 C, sensitivity numbers that imply a small amount of negative feedback rather than positive feedback, a safer choice in my mind since most long-term stable natural systems are dominated by negative feedback.

Anyway, in an article that was as surprising as it is welcome, NY Times climate writer Andy Revkin has quite an article recently, finally acknowledging in the paper of record that maybe those skeptics who have argued for alower sensitivity number kind of sort of have a point.

Worse than we thought” has been one of the most durable phrases lately among those pushing for urgent action to stem the buildup of greenhouse gases linked to global warming.

But on one critically important metric — how hot the planet will get from a doubling of the pre-industrial concentration of greenhouse gases, a k a “climate sensitivity” — someclimate researchers with substantial publication records are shifting toward the lower end of the warming spectrum.

By the way, this is the only metric that matters.  All the other BS about "climate change" and "dirty weather" are meaningless without warming.  CO2 cannot change the climate  or raise sea levels or any of that other stuff by any mechanism we understand or that has even been postulated, except via warming.  Anyway, to continue:

There’s still plenty of global warming and centuries of coastal retreats in the pipeline, so this is hardly a “benign” situation, as some have cast it.

But while plenty of other climate scientists hold firm to the idea that the full range of possible outcomes, including a disruptively dangerous warming of more than 4.5 degrees C. (8 degrees F.), remain in play, it’s getting harder to see why the high-end projections are given much weight.

This is also not a “single-study syndrome” situation, where one outlier research paper is used to cast doubt on a bigger body of work — as Skeptical Science asserted over the weekend. That post focused on the as-yet-unpublished paper finding lower sensitivity that was inadvisedly promoted recently by the Research Council of Norway.

In fact, there is an accumulating body of reviewed, published researchshaving away the high end of the range of possible warming estimates from doubled carbon dioxide levels. Chief among climate scientists critical of the high-sensitivity holdouts is James Annan, an experienced climate modeler based in Japan who contributed to the 2007 science report from the Intergovernmental Panel on Climate Change. By 2006, he was already diverging from his colleagues a bit.

The whole thing is good.  Of course, for Revkin, this is no excuse to slow down all the actions supposedly demanded by global warming, such as substantially raising the price and scarcity of hydrocarbons.  Which to me simply demonstrates that people who have been against hydrocarbons have always been against them as an almost aesthetic choice, and climate change and global warming were mere excuses to push the agenda.  After all, as there certainly are tradeoffs to limiting economic growth and energy use and raising the price of energy, how can a reduction in postulated harms from fossil fuels NOT change the balance point one chooses in managing their use?

PS-  I thought this was a great post mortem on Hurricane Sandy and the whole notion that this one data point proves the global warming trend:

In this case several factors not directly related to climate change converged to generate the event. On Sandy’s way north, it ran into a vast high-pressure system over Canada, which prevented it from continuing in that direction, as hurricanes normally do, and forced it to turn west. Then, because it traveled about 300 miles over open water before making landfall, it piled up an unusually large storm surge. An infrequent jet-stream reversal helped maintain and fuel the storm. As if all that weren’t bad enough, a full moon was occurring, so the moon, the earth, and the sun were in a straight line, increasing the moon’s and sun’s gravitational effects on the tides, thus lifting the high tide even higher. Add to this that the wind and water, though not quite at hurricane levels, struck an area rarely hit by storms of this magnitude so the structures were more vulnerable and a disaster occurred.

The last one is a key for me -- you have cities on the Atlantic Ocean that seemed to build and act as if they were immune from ocean storms.  From my perspective growing up on the gulf coast, where one practically expects any structure one builds on the coast to be swept away every thirty years or so, this is a big contributing factor no one really talks about.

She goes on to say that rising sea levels may have made the storm worse, but I demonstrated that it couldn't have added more than a few percentage points to the surge.

Trusting Experts and Their Models

Russ Roberts over at Cafe Hayek quotes from a Cathy O’Neill review of Nate Silvers recent book:

Silver chooses to focus on individuals working in a tight competition and their motives and individual biases, which he understands and explains well. For him, modeling is a man versus wild type thing, working with your wits in a finite universe to win the chess game.

He spends very little time on the question of how people act inside larger systems, where a given modeler might be more interested in keeping their job or getting a big bonus than in making their model as accurate as possible.

In other words, Silver crafts an argument which ignores politics. This is Silver’s blind spot: in the real world politics often trump accuracy, and accurate mathematical models don’t matter as much as he hopes they would....

My conclusion: Nate Silver is a man who deeply believes in experts, even when the evidence is not good that they have aligned incentives with the public.

Distrust the experts

Call me “asinine,” but I have less faith in the experts than Nate Silver: I don’t want to trust the very people who got us into this mess, while benefitting from it, to also be in charge of cleaning it up. And, being part of the Occupy movement, I obviously think that this is the time for mass movements.

Like Ms. O'Neill, I distrust "authorities" as well, and have a real problem with debates that quickly fall into dueling appeals to authority.  She is focusing here on overt politics, but subtler pressure and signalling are important as well.  For example, since "believing" in climate alarmism in many circles is equated with a sort of positive morality (and being skeptical of such findings equated with being a bad person) there is an underlying peer pressure that is different from overt politics but just as damaging to scientific rigor.  Here is an example from the comments at Judith Curry's blog discussing research on climate sensitivity (which is the temperature response predicted if atmospheric levels of CO2 double).

While many estimates have been made, the consensus value often used is ~3°C. Like the porridge in “The Three Bears”, this value is just right – not so great as to lack credibility, and not so small as to seem benign.

Huybers (2010) showed that the treatment of clouds was the “principal source of uncertainty in models”. Indeed, his Table I shows that whereas the response of the climate system to clouds by various models varied from 0.04 to 0.37 (a wide spread), the variation of net feedback from clouds varied only from 0.49 to 0.73 (a much narrower relative range). He then examined several possible sources of compensation between climate sensitivity and radiative forcing. He concluded:

“Model conditioning need not be restricted to calibration of parameters against observations, but could also include more nebulous adjustment of parameters, for example, to fit expectations, maintain accepted conventions, or increase accord with other model results. These more nebulous adjustments are referred to as ‘tuning’.”  He suggested that one example of possible tuning is that “reported values of climate sensitivity are anchored near the 3±1.5°C range initially suggested by the ad hoc study group on carbon dioxide and climate (1979) and that these were not changed because of a lack of compelling reason to do so”.

Huybers (2010) went on to say:

“More recently reported values of climate sensitivity have not deviated substantially. The implication is that the reported values of climate sensitivity are, in a sense, tuned to maintain accepted convention.”

Translated into simple terms, the implication is that climate modelers have been heavily influenced by the early (1979) estimate that doubling of CO2 from pre-industrial levels would raise global temperatures 3±1.5°C. Modelers have chosen to compensate their widely varying estimates of climate sensitivity by adopting cloud feedback values countering the effect of climate sensitivity, thus keeping the final estimate of temperature rise due to doubling within limits preset in their minds.

There is a LOT of bad behavior out there by models.  I know that to be true because I used to be a modeler myself.  What laymen do not understand is that it is way too easy to tune and tweak and plug models to get a preconceived answer -- and the more complex the model, the easier this is to do in a non-transparent way.  Here is one example, related again to climate sensitivity

When I looked at historic temperature and CO2 levels, it was impossible for me to see how they could be in any way consistent with the high climate sensitivities that were coming out of the IPCC models.  Even if all past warming were attributed to CO2  (a heroic assertion in and of itself) the temperature increases we have seen in the past imply a climate sensitivity closer to 1 rather than 3 or 5 or even 10  (I show this analysis in more depth in this video).

My skepticism was increased when several skeptics pointed out a problem that should have been obvious.  The ten or twelve IPCC climate models all had very different climate sensitivities — how, if they have different climate sensitivities, do they all nearly exactly model past temperatures?  If each embodies a correct model of the climate, and each has a different climate sensitivity, only one (at most) should replicate observed data.  But they all do.  It is like someone saying she has ten clocks all showing a different time but asserting that all are correct (or worse, as the IPCC does, claiming that the average must be the right time).

The answer to this paradox came in a 2007 study by climate modeler Jeffrey Kiehl.  To understand his findings, we need to understand a bit of background on aerosols.  Aerosols are man-made pollutants, mainly combustion products, that are thought to have the effect of cooling the Earth’s climate.

What Kiehl demonstrated was that these aerosols are likely the answer to my old question about how models with high sensitivities are able to accurately model historic temperatures.  When simulating history, scientists add aerosols to their high-sensitivity models in sufficient quantities to cool them to match historic temperatures.  Then, since such aerosols are much easier to eliminate as combustion products than is CO2, they assume these aerosols go away in the future, allowing their models to produce enormous amounts of future warming.

Specifically, when he looked at the climate models used by the IPCC, Kiehl found they all used very different assumptions for aerosol cooling and, most significantly, he found that each of these varying assumptions were exactly what was required to combine with that model’s unique sensitivity assumptions to reproduce historical temperatures.  In my terminology, aerosol cooling was the plug variable.

By the way, this aerosol issue is central to recent work that is pointing to a much lower climate sensitivity to CO2 than has been reported in past IPCC reports.

The Real Issue in Climate

I know I hammer this home constantly, but it is often worth a reminder.  The issue in the scientific debate over catastrophic man-made global warming theory is not whether CO2 is a greenhouse gas, or even the approximate magnitude of warming from CO2 directly, but around feedbacks.   Patrick Moore, Greenpeace founder, said it very well:

What most people don't realize, partly because the media never explains it, is that there is no dispute over whether CO2 is a greenhouse gas, and all else being equal would result in a warming of the climate. The fundamental dispute is about water in the atmosphere, either in the form of water vapour (a gas) or clouds (water in liquid form). It is generally accepted that a warmer climate will result in more water evaporating from the land and sea and therefore resulting in a higher level of water in the atmosphere, partly because the warmer the air is the more water it can hold. All of the models used by the IPCC assume that this increase in water vapour will result in a positive feedback in the order of 3-4 times the increase in temperature that would be caused by the increase in CO2 alone.

Many scientists do not agree with this, or do not agree that we know enough about the impact of increased water to predict the outcome. Some scientists believe increased water will have a negative feedback instead, due to increased cloud cover. It all depends on how much, and a t what altitudes, latitudes and times of day that water is in the form of a gas (vapour) or a liquid (clouds). So if  a certain increase in CO2 would theoretically cause a 1.0C increase in temperature, then if water caused a 3-4 times positive feedback the temperature would actually increase by 3-4C. This is why the warming predicted by the models is so large. Whereas if there was a negative feedback of 0.5 times then the temperature would only rise 0.5C.

My slightly lengthier discussions of this same issue are here and here.

A Vivid Reminder of How The Climate Debate is Broken

My Forbes column is up this week.  I really did not want to write about climate, but when Forbes conctributor Steve Zwick wrote this, I had to respond

We know who the active denialists are – not the people who buy the lies, mind you, but the people who create the lies.  Let’s start keeping track of them now, and when the famines come, let’s make them pay.  Let’s let their houses burn.  Let’s swap their safe land for submerged islands.  Let’s force them to bear the cost of rising food prices.

They broke the climate.  Why should the rest of us have to pay for it?

The bizarre threats and ad hominem attacks have to stop.  Real debate is necessary based on an assumption that our opponents may be wrong, but are still people of good will.  And we need to debate what really freaking matters:

Instead of screwing around in the media trying to assign blame for the recent US heat wave to CO2 and threatening to burn down the houses of those who disagree with us, we should be arguing about what matters.  And the main scientific issue that really matters is understanding climate feedback.  I won't repeat all of the previous posts (see here and here), but this is worth repeating:

Direct warming from the greenhouse gas effect of CO2 does not create a catastrophe, and at most, according to the IPCC, might warm the Earth another degree over the next century.  The catastrophe comes from the assumption that there are large net positive feedbacks in the climate system that multiply a small initial warming from CO2 many times.  It is this assumption that positive feedbacks dominate over negative feedbacks that creates the catastrophe.  It is telling that when prominent supporters of the catastrophic theory argue the science is settled, they always want to talk about the greenhouse gas effect (which most of us skeptics accept), NOT the positive feedback assumption.  The assumption of net positive climate feedback is not at all settled -- in fact there is as much evidence the feedback is net negative as net positive -- which may be why catastrophic theory supporters seldom if ever mention this aspect of the science in the media.

I said I would offer a counter-proposal to Mr. Zwick's that skeptics bear the costs of climate change.  I am ready to step up to the cost of any future man-made climate change if Mr. Zwick is ready to write a check for the lost economic activity and increased poverty caused by his proposals.  We are at an exciting point in history where a billion people, or more, in Asia and Africa and Latin America are at the cusp of emerging from millenia of poverty.  To do so, they need to burn every fossil fuel they can get their hands on, not be forced to use rich people's toys like wind and solar.  I am happy to trade my home for an imaginary one that Zwick thinks will be under water.  Not only is this a great way to upgrade to some oceanfront property, but I am fully confident the crazy Al Gore sea level rise predictions are a chimera, since sea levels have been rising at a fairly constant rate since the end of the little ice age..  In return, perhaps Mr. Zwick can trade his job for one in Asia that disappears when he closes the tap on fossil fuels?

I encourage you to read it all, including an appearance by the summer of the shark.

The Facebook Conundrum

Here is my business problem:

On the positive side for Facebook, it is the only platform we have tried, from static web pages to blogs to Google to whatever, where we really get a good real-time interaction going with our campground customers.  Its an easy platform for them to ask questions, provide feedback, and upload useful content about the campground (from pictures to reviews to videos).  Many of my older employees are flummoxed by even the simplest computer tasks (I have had folks it has taken days of effort to teach how to get into their corporate Gmail account) but it is relatively easy to learn how to add an update or answer a query on a Facebook page  (and by "page" I mean the corporate or business pages like this one here:  http://www.facebook.com/RockCreekCanyon, not one's individual page).

But here is the problem:  The Facebook staff changes FB's layout and user interface faster than a sugar-overloaded ADD 7-year-old gets tired of a new toy.  I swear they have no reason for some of the changes other than "we're kind of bored with the user interface staying the same more than 3 months and some junior guy coded this timeline thing so let's make him feel good and put it up".

The shifting user interface is a training nightmare for my non-computer savvy managers.  What used to be tabs across the top are now text links on the left.  The Page admin panel changes almost every time I log on.  And don't even get me started on the simply stupid dueling column format of the new pages, or the fact that useless information like number of people who liked the site in a given month take up enormous amounts of the timeline's real estate now.  Just look at the page I linked above.  For the first 2-3 scrolls, the right hand column is different data than the left column, but then suddenly it becomes an alternating home for data that at the top only showed up on the left.    I am told that I can now pin a status update to the top, which will be nice, but at the cost of losing the custom landing page we used to have.

And woe be to he who actually develops for the platform, because he may soon find out that it all became wasted effort at the next over-caffeinated random user interface change.  I just did a tiny, minor bit of coding (less than a few hours) that takes my page administrators' status updates and posts them as a news feed on our web site  (ie here for the FB page above).  I could do more interesting things but I have absolutely no confidence that, for example, the FB page RSS feed I used will still be supported tomorrow.

Warning: Crimes Against Humanity May Be Found Here

According not to some random weird dude found on a campus in California, but to the head of NASA Goddard Institute for Space Studies, I am guilty of crimes against humanity for questioning whether the world's climate system is really dominated by strong positive feedback

One of the world’s most widely respected climatologists, James Hansen, director of NASA-GISS, which focuses on the study of earth’s climate for the space agency, testified to Congress in 2008 that the CEOs of fossil fuel companies (who, according to various professional reporting have been promoting this and other misleading messages about global warming in conjunction with ideological groups trying to prevent government regulation) “knew what they were doing” and, as stated in his written testimony to Congress in 2008, were guilty of “high crimes against humanity and nature.”

Hansen tells ABC News — in a phone call from the U.K. where he’s been traveling — that he used that highly charged phrase, crime against humanity, “not only for dramatic effect, but also because it is accurate, given the enormous scale of the consequences to humanity” if manmade global warming is not somehow stopped and reversed.

“It wasn’t only aimed at the fossil fuel CEOs,” Hansen added on the phone. “This also applies to politicians who pretend the global warming is not manmade.”....

“Crimes Against Humanity” is a category of culpability that found currency in the last century as a label for such atrocities as genocide, including the Nazi Holocaust.

This is a grave accusation, laden with great emotion, but it has not been made lightly — rather with extensive study and forethought.

You have been warned.

Climate Bait and Switch

Cross posted from Climate Skeptic

This quote from Michael Mann [of Hockey Stick fame] is a great example of two common rhetorical tactics of climate alarmists:

And so I think we have to get away from this idea that in matters of science, it's, you know, that we should treat discussions of climate change as if there are two equal sides, like we often do in the political discourse. In matters of science, there is an equal merit to those who are denying the reality of climate change who area few marginal individuals largely affiliated with special interests versus the, you know, thousands of scientists around the world. U.S. National Academy of Sciences founded by Abraham Lincoln back in the 19th century, all the national academies of all of the major industrial nations around the world have all gone on record as stating clearly that humans are warming the planet and changing the climate through our continued burning of fossil fuels.

Here are the two tactics at play here:

  1. He is attempting to marginalize skeptics so that debating their criticisms is not necessary.  He argues that skeptics are not people of goodwill; or that they say what they say because they are paid by nefarious interests to do so; or that they are vastly outnumbered by real scientists ("real" being defined as those who agree with Dr. Mann).  This is an oddly self-defeating argument, though the media never calls folks like Mann on it.  If skeptics' arguments are indeed so threadbare, then one would imagine that throwing as much sunlight on them as possible would reveal their bankruptcy to everyone, but instead most alarmists are begging the media, as in this quote, to bury and hide skeptics' arguments.  I LOVE to debate people when I know I am right, and have pre-debate trepidation only when I know my position to be weak.
  2. There is an enormous bait and switch going on in the last sentence.  Note the proposition is stated as "humans are warming the planet and changing the climate through our continued burning of fossil fuels."  I, and many other skeptics, don't doubt the first part and would quibble with the second only because so much poor science occurs in attributing specific instances of climate change to human action.  What most skeptics disagree with is an entirely different proposition, that humans are warming the planet to catastrophic levels that justify immensely expensive and coercive government actions to correct.  Skeptics generally accept a degree or so of warming from each doubling of CO2 concentrations but reject the separate theory that the climate is dominated by positive feedback effects that multiple this warming 3x or more.   Mann would never be caught dead in public trying to debate this second theory of positive feedback, despite the fact that most of the warming in IPCC forecasts is from this second theory, because it is FAR from settled.  Again, the media is either uninterested or intellectually unable to call him on this.
I explained the latter points in much more detail at Forbes.com

Raise the Payroll Tax

Yesterday, Congress agreed to extend the payroll tax reductions for another period of time.  I have been thinking about this for a while, and I am slowly coming to the conclusion these taxes should be raised.  I am still thinking this through so I welcome feedback.

I don't think I have to convince regular readers of this site that I am against government-run and mandated-for-all retirement funds (income via Social Security, medical via Medicare).  But if we are going to have such programs, and maintain the pretense that they are insurance programs and not welfare/transfer programs, then the "premiums" we are forced to pay should reflect true costs.

I don't think Medicare premiums are covering anywhere near the actuarial-expected costs of one's future medical care.  And while Social Security rates may be set correctly if trust funds were truly held securely, the fact of the matter is that past Social Security premiums that were paid to support future benefits have all been spent by a corrupt Congress.  Rates are going to have to be raised to replace this theft.

I don't like raising taxes.  I wish these two programs would go away or else be restructured drastically.  If they exist, though, there is nothing more dangerous than an incorrect price.  Prices help consumers make price-value tradeoffs -- the Keanu Reeves lifetime DVD collection may be a deal at $6.99 but not at $99.99.  So charging the wrong prices for these programs not only royally screws up the government's finances, but it also misleads Americans about the value of these programs in comparison to what they pay for them.

I Don't Think This is Settled

For those who have read my climate work or seen the video, the key question in climate science revolves around the feedback effects in the climate system to Co2 warming.

Skeptics, like alarmists, generally agree that a doubling of Co2 concentrations might warm the Earth about a degree Celsius, absent any other effects.  But we can imagine all sorts of feedback effects, the most important of which are in water vapor and cloud formation.  Warming that forms more clouds might have negative feedback, as clouds offset some of the warming.  Warming that increases humidity could lead to more warming, as water vapor is a strong greenhouse gas.

The difference, then, between minor warming and catastrophe is in the feedbacks, and most importantly in clouds and water vapor.  All the research the government is funding on whether warming will cause sterility in tree frogs is tangential to this key question.

And this question is far from decided.  I won't get into all the arguments here, but to the extent there is any consensus, it is that man' CO2 is probably causing some warming.  Whether this is a catastrophe or a nuisance depends on feedbacks which are not well understood.

This week there has been a lot of interesting back and forth over a paper by Roy Spencer several months ago arguing that cloud feedback was negative and would serve to limit the total amount of man-made warming.  Just how central this issue is can be seen in the fuss this paper has caused, including editors forced to resign for even daring to publish such heresy, and the speed with which a counter-paper flew through peer review.

I won't get into the depths of this, except to show two charts.  The first is from Dessler in the alarmist camp, the second is the same chart but using a different data series.  I won't explain the axes,  just trust the relationship between these two variables is key to diagnosing the size and direction of feedback.

So we get opposite results (the slope of the regression) simply by using temperature and radiative flux data from to different agencies.  And note how thin the fit is in both -- basically drawing a line through a cloud.  Neither of these likely has an R-squared higher than about .05.

So there you have it, the most important question in climate - really, the only important question associated with anthropogenic global warming.  Settled science, indeed.

Pretty Brazen, Even for a Politician

I have often described this statist feedback loop:

  • Create government program
  • Government programs messes up certain aspects of the market
  • Blame such messes on "failure of markets" or capitalism or even the rich, rather than the government program
  • Create new government program to fix problem created by last program
  • Repeat

Obama's new political strategy seems to be even more brazen

  • Democrats pass new program over Republican objections
  • New program has unseemly subsidies for rich people
  • Blame subsidies on Republicans, to the point of using subsidies as example of bankruptcy of Republican party

Specifically, tax breaks for corporate jets:

The chief economic culprit of President Obama’s Wednesday press conference was undoubtedly “corporate jets.” He mentioned them on at least six occasions, each time offering their owners as an example of a group that should be paying more in taxes.

“I think it’s only fair to ask an oil company or a corporate jet owner that has done so well,” the president stated at one point, “to give up that tax break that no other business enjoys.”

But the corporate jet tax break to which Obama was referring – called “accelerated depreciation,” and a popular Democratic foil of late – was created by his own stimulus package.

Which is not to say that the losers in the Republican party would not likely have supported the same plan had it been their idea.

By the way, this is nearly exactly what Obama has been doing with those so-called special subsidies for oil companies.  This subsidies are in fact the identical tax breaks that all manufacturers receive that allow them to accelerate expensing of capital investment.  This is a tax policy that has enjoyed bipartisan support and no one is suggesting should be eliminated in general -- just eliminated for industries that have bad PR.

Climate Feedback

Take all the psuedo-quasi-scientific stuff you read in the media about global warming.  Of all that mess, it turns out there is really only one scientific question that really matters on the topic of man-made global warming: Feedback.

While the climate models are complex, and the actual climate even, err, complexer, we can shortcut the reaction of global temperatures to CO2 to a single figure called climate sensitivity.  How many degrees of warming should the world expect for each doubling of CO2 concentrations  (the relationship is logarithmic, so that is why sensitivity is based on doublings, rather than absolute increases -- an increase of CO2 from 280 to 290 ppm should have a higher impact on temperatures than the increase from, say, 380 to 390 ppm).

The IPCC reached a climate sensitivity to CO2 of about 3C per doubling.  More popular (at least in the media) catastrophic forecasts range from 5C on up to about any number you can imagine, way past any range one might consider reasonable.

But here is the key fact -- Most folks, including the IPCC, believe the warming sensitivity from CO2 alone (before feedbacks) is around 1C or a bit higher (arch-alarmist Michael Mann did the research the IPCC relied on for this figure).  All the rest of the sensitivity between this 1C and 3C or 5C or whatever the forecast is comes from feedbacks (e.g. hotter weather melts ice, which causes less sunlight to be reflected, which warms the world more).  Feedbacks, by the way can be negative as well, acting to reduce the warming effect.  In fact, most feedbacks in our physical world are negative, but alarmist climate scientists tend to assume very high positive feedbacks.

What this means is that 70-80% or more of the warming in catastrophic warming forecasts comes from feedback, not CO2 acting alone.   If it turns out that feedbacks are not wildly positive, or even are negative, then the climate sensitivity is 1C or less, and we likely will see little warming over the next century due to man.

This means that the only really important question in the manmade global warming debate is the sign and magnitude of feedbacks.  And how much of this have you seen in the media?  About zero?  Nearly 100% of what you see in the media is not only so much bullshit (like whether global warming is causing the cold weather this year) but it is also irrelevant.  Entirely tangential to the core question.  Its all so much magician handwaving trying to hide what is going on, or in this case not going on, with the other hand.

To this end, Dr. Roy Spencer has a nice update.  Parts are a bit dense, but the first half explains this feedback question in layman's terms.  The second half shows some attempts to quantify feedback.  His message is basically that no one knows even the sign and much less the magnitude of feedback, but the empirical data we are starting to see (which has admitted flaws) points to negative rather than positive feedback, at least in the short term.  His analysis looks at the change in radiative heat transfer in and out of the earth as measured by satellites around transient peaks in ocean temperatures (oceans are the world's temperature flywheel -- most of the Earth's surface heat content is in the oceans).

Read it all, but this is an interesting note:

In fact, NO ONE HAS YET FOUND A WAY WITH OBSERVATIONAL DATA TO TEST CLIMATE MODEL SENSITIVITY. This means we have no idea which of the climate models projections are more likely to come true.

This dirty little secret of the climate modeling community is seldom mentioned outside the community. Don’t tell anyone I told you.

This is why climate researchers talk about probable ranges of climate sensitivity. Whatever that means!…there is no statistical probability involved with one-of-a-kind events like global warming!

There is HUGE uncertainty on this issue. And I will continue to contend that this uncertainty is a DIRECT RESULT of researchers not distinguishing between cause and effect when analyzing data.

If you find this topic interesting, I recommend my video and/or powerpoint presentation to you.

New Year's Resolution

In my column this week at Forbes, I discuss my New Year's Resolution, which has not changed over several decades, and how it helped me this year to solve some difficult philosophical issues regarding my business.

Almost exactly thirty years ago, I read Ayn Rand's Atlas Shrugged, probably the single most influential book I have read in my lifetime.  Before I read it, I was on a path to becoming a traditional Conservative in the mold of my parents, and in retrospect my thinking on a lot of issues was quite muddled.

I am no longer the exclusive Rand fanboy I was back in college, if for no other reason than I have since found many authors who come at the topic of capitalism and freedom from many different angles, but Rand was certainly my gateway drug to liberty.

Like many people, around the new year I set various goals for myself over the coming year.  Some I have achieved (e.g. getting myself out of corporate America and into my own business) and on some I have fallen short (e.g. learning to play the guitar).  But every year I have renewed just one resolution, which I took from Atlas Shrugged.  It is

I swear"“by my life and my love of it"“that I will never live for the sake of another man, nor ask another man to live for mine.

I then discuss this resolution in the context of approaches my business has had this year from lobbyists.  I discuss how lobbyists have approached me about an effort to make some tweaks to the health care law (it is particularly punitive to our labor model where we hire seniors part time and seasonally) as well as efforts to promote privatization of recreation (my business) and to help me obtain new contracts.    The article has much more discussion about details, but my resolution for a lobbying policy turned out as follows, in a rough parallel to the resolution above:

"We will use lobbyists to defend ourselves when the government is trying to gut us like a fish, but we will attempt to do so with generic amendments rather than through special exemptions for our company alone.  We will not use lobbyists to create new business opportunities, even when the legislation to do so is consistent with our principals."

By the way, I actually sent notes to several readers out there (you know who you are) asking them their opinions on some of the ethical issues I saw in these issues, and I appreciate the feedback from all of you.

Happy new year to all of you.

The Power to Say "Yes"

Bruce McQuain tells some stories of bureaucratic frustration in the Gulf, as local governors trying to protect their state from the spill fights against a myriad of mindless bureaucracies.

The governor said the problem is there's still no single person giving a "yes" or "no." While the Gulf Coast governors have developed plans with the Coast Guard's command center in the Gulf, things begin to shift when other agencies start weighing in, like the Environmental Protection Agency and the U.S. Fish and Wildlife Service. "It's like this huge committee down there," Riley said, "and every decision that we try to implement, any one person on that committee has absolute veto power."

I would state the problem differently.  In the Federal bureaucracy, seemingly everyone has the power to say "no," and absolutely no one is willing to risk their career or even a minor bureaucratic sanction to over-rule when someone else in the room says "no."  I have seen it a hundred times in my business -- we will be close to doing something for the public, building a new shower building in a campground for example, and some government employee in the room will say that their sister's gynecologist's barber's housekeeper once overheard a conversation in a bar that some guy who may have visited a university once said he had heard a rumor that there might have been a Native American settlement somewhere within 100 miles of that spot 10,000 years ago -- and suddenly the work on the shower has to stop for 6 months while we all run around calling in archeologists and taking this concern seriously.

The problem  in a government discussion, particularly a multi-agency discussion, is that EVERYONE can say "no," and worse, since their incentives are loaded towards risk avoidance (they get punished for violating procedure, but never punished for missing an opportunity), they have a tendency to say "no" a lot, in fact to say "no" by default.  In the Gulf you have a thousand federal employees from 20 agencies whose entire incentive system, whose entire career, whose every lesson from every bureaucratic battle in a sort of long-term aversion therapy, prompts them to say "no" by reflex.

What is missing is someone who can say "yes," and make it stick against all the no's.  That does not have to be Obama -- but it probably does have to be someone very senior who knows (and who everyone else knows) is backed to the hilt by the President and has an incentive system where the only measure of success is more or less oil damage, and thus for whom aggrieved bureaucrats (even senior ones) and petty procedure are irrelevant.  It does not appear such a person has been appointed.

Postscript: By the way, I don't want folks to fall into the trap of thinking that these government folks are necessarily bad people.  I think that is a mistake both conservatives and liberals make -- conservatives vilify government employees, while liberals want to believe that government would work right if we just had the right people in it.   I work with a lot of very bright, very good people in government.  The problem is that their incentives and information are awful.  How would you behave if for 20 years your main feedback was to be criticized for violating minor procedures or trying new things?  How would you have any understanding of business if you grew up in the bizarro world of government budgeting and accounting?   This is the problem with government - not that it is full of bad stupid people, but it takes good smart people and incentivizes them do counter-productive things.

Update: Here is a great example, from Kevin Drum, who is a smart guy but can't do anything but dither in a decision among multiple risks:

It's pretty hard to take the other side of this argument [ie defending the Coast Guard's decision to hold up the GUlf cleanup barges for minor rules violations]. But I wonder. We are, after all, talking about barges that are sucking up oil, and the last time I checked oil was pretty damn flammable. Everyone wants the cleanup operation to proceed with breakneck speed, but that's exactly when people get tired and sloppy. And I wonder what everyone would think of the Coast Guard's ridiculous rules if they waived them and then some boat went up in a huge fireball because a spark caught somewhere and no one had a fire extinguisher handy?

I will say again - I have been in many rooms of bureaucrats, both federal and private, and they all think this way.  These rooms are full of Kevin Drum's wondering out loud, "I don't know, what happens if..."  This is such a common phrase in these meetings I wish I had a dollar for every time I heard it.  Then everyone in the room defers to this hypothetical risk.   Bureaucrats are always more worried about sins of commission  (e.g. knowingly allowing a barge to go out without enough fire extinguishers in violation of guidelines) than the sin of omission (e.g. delay will allow the spill to get worse).  Even when the omission is 100% certainty and the danger from the act of commission is vaguely hypothetical.  It takes a leader to say "send the damn barges out now."

Why the Historical Warming Numbers Matter

First, let's settle something.  The world has warmed since 1850.  While there always is an error bar on nearly every statement about nature, I think there is little point in questioning this past warming.  There is ice core data that suggests that the little ice age, which ended some time in the very early 19th century, was perhaps the coldest period, or one of the two or three coldest periods, in the last 5000 years (ie in nearly the entire span of human civilization).  Temperatures are inevitably warming from this low point.(*1)

So, if the point is not to deny warming altogether, what is the point in discussions of Climategate of picking over and trying to audit historical temperature records like the Hadley CRUT3 or NASA's GISStemp?  Skeptics often argue that much of the warming is due to bogus manual adjustments in the temperature records and biases such as urban warming.  Alarmists argue that the metrics may understate warming because of masking by manmade anthropogenic cooling agents (e.g. sulfate aerosols).  Why bother?  Why does it matter if past warming is 0.6C or 0.8C or 0.3C?  There are at least two reasons.

1.  The slope of recent temperature increases is used as evidence for the anthropogenic theory.

We know greenhouse gasses like CO2 have a warming effect in the lab.  And we know that overall they warm planets because otherwise ours would be colder.  But how much does an incremental amount of CO2 (a relatively weak greenhouse gas) warm the Earth?  A lot or a little?  Is the sensitivity of the climate to CO2 high or low?

Every time I try to express this, it sounds so ridiculous that people think I must have it wrong.  But the main argument supporting a high climate sensitivity to CO2 is that scientists claim to have looked at past warming, particularly from 1950-2000, and they can't think of any natural cause that could behind it, which leaves CO2 by process of elimination.  Yeah, I know this seems crazy - one wants to ask if this is really a test for CO2 sensitivity or of scientists' understanding and imagination, but there you have it.

Now, they don't always say it this directly.  What they actually say is that they ran their climate models and their climate models could not produce the warming from 1950-2000 with natural forcings alone, but could reproduce this warming with forcings from CO2.  But since the climate models are not handed down from the gods, but programmed by the scientists themselves to represent their own understanding of the climate system, in effect this is just a different way of saying what I said in the previous paragraph.   The climate models perform the function of scientific money laundering, taking an imperfect knowledge on the front end and somehow converting that into settled science at the output.

Now, there are a lot of ways to criticize this approach.  The models tend to leave out multi-decadal ocean cycles and don't really understand cloud formation well.  Further, the period from 1957-2008, which supposedly can only be explained by non-natural forcings, has almost the exact same temperature profile and increase as the time from 1895-1946, which of necessity must be mostly "natural."  I go into this more here, among other places.

But you can see that the amount of warming matters to this argument.  The more the warming falls into a documented natural range of temperature variation, the harder it is to portray it as requiring man-made forcings to explain.  This is also the exact same reason alarmist scientists work so hard to eliminate the Medieval Warm Period and little ice age from the temperature record.  Again, the goal is to show that natural variation is in a very narrow range, and deviations from this narrow range must therefore be man-made. (*2)

This is the sort of unified field theory of everything we are seeing in the CRU emails.   We see scientists using every trick they can find to lower or smooth out temperatures numbers before 1950, and adjust numbers after 1950 upwards.  Every single trick and programming adjustment all tended to have this effect, whether it be in proxy studies or in the instrumental record.  And all the efforts to prevent scrutiny, ignore FOIA's, and throw out raw data have been to avoid third party replication of the statistical methods and adjustments they used to achieve these ends.

As an aside, I think it is incorrect to picture this as a SPECTRE-like cabal scheming to do evil.   These guys really, really believed they had the right answer, and these adjustments were made to tease out what they just knew the right answer to be.  This is why we are only going to see confused looks from any of these guys - they really, really believed they were doing God's work.  They are never going to understand what they did wrong.  Which doesn't make it any less bad science, but just emphasizes that we are never going to get data without spin until total sunlight is brought to this process

2.  It is already really hard to justify the huge sensitivities in alarmist forecasts based on past warming -- if past warming is lower, forecasts look even more absurd.

The best way to illustrate this is with a few charts from my most recent climate presentation and video.  We usually see warming forecasts by year.  But the real relationship is between warming and CO2 concentration (this relationship is called climate sensitivity).   One can graph forecasts at various levels:

Slide57

The blue line corresponds to the IPCC no-feedback formula that I think originally goes back to Michael Mann, and yields about 1-1.2C of warming for greenhouse gas warming from CO2 before feedback effects.  The middle two lines correspond to the IPCC mid and high forecasts, and the top line corresponds to more alarmist forecasts from folks like Joe Romm who predict as much as 8-10C of warming by 2100 (when we will be at 650-800ppm CO2 per the IPCC).  By the way, the IPCC does not publish the lines above the blue line, so I have taken the formula they give for the blue line and scaled it to meet their end points.  I think this is reasonable.

A couple of things - all climate models assume net positive feedback, what skeptics consider the key flaw in catastrophic global warming theory.  In fact, most of the catastrophe comes not from global warming theory, but by this second theory that the Earth's temperature system is dominated by very high positive feedback.  I illustrate this here.  The blue line is from CO2 greenhouse gas warming.  Everything above it is from the multiplier effects of assumed feedbacks.

Slide21

I won't go into the feedback issue much now - search my site for positive feedback or else watch my video for much more.  Suffice it to say that skeptics consider the feedback issue the key failure point in catastrophic forecasts.

Anyway, beyond arguing about feedbacks, there is another way to test these forecasts.   Relationships that hold for CO2 and warming in the future must hold in the past (same Earth).  So lets just project these lines backwards to the CO2 level in the late 19th century.

Slide61

Can you see the issue?  When projected back to pre-industrial CO2 levels, these future forecasts imply that we should have seen 2,3,4 or more degrees of warming over the last century, and even the flawed surface temperature records we are discussing with a number of upwards biases and questionable adjustments only shows about 0.6C.

Sure, there are some time delay issues, probably 10-15 years, as well as some potential anthropogenic cooling from aerosols, but none of this closes these tremendous gaps.  Even with an exaggerated temperature history, only the no feedback 1C per century case is really validated by history.  And, if one assumes the actual warming is less than 0.6C, and only a part of that is from anthropogenic CO2, then the actual warming forecast justified is one of negative feedback, showing less than 1C per century warming from manmade CO2 -- which is EXACTLY the case that most skeptics make.

Those who control the past control the future. Those who control the present control the past.- George Orwell

Footnotes:

(1) More than once I have contemplated how much the fact that the invention of the thermometer occurred at perhaps the coldest point in human memory (early 17th century)  has contributed to the perceptions of current warm weather being unusual.

(2) For those who are on the ball, perhaps you can spot an amazing disconnect here.  Scientists claim that the natural variation of temperatures is in a very narrow band, that they never move even 0.2C per decade by natural means.  But they also say that the Earth's temperature system is dominated by positive feedback, meaning that very very small changes in forcings are magnified many fold in to large temperature changes.  I won't go in to it in depth from a systems perspective, but trust me that "high stability in a narrow range" and "dominated by high positive feedback" are not very compatible descriptions of a system.

Climate Updates

Believe it or not, I am not going to update on the CRU emails.  The insights into the science process are illuminating, and confirm much that we have suspected, but faults in transparency do not automatically win the game -- they lead to [hopefully] future transparency which then allows for better criticism and/or replication of the work.

My frustration today is a recent article in Scientific American [with the lofty academic title "Seven Answers to Climate Contrarian Nonsense"] which purports to shoot down the seven key skeptics arguments.  Many others have shown how the author does not do a very good job of shooting down these seven, but that is not my main frustration.  The problem is that, like many of the global warming myth buster articles like this, the author completely fails to address the best, core arguments of skeptics, preferring to snipe around at easier prey at the margins.

In this post, I discuss his article and suggest 7 better propositions alarmists should, but never do, address.

You can see discussion of all of these in my recent lecture, on video here.

Don't have 90 minutes?  Richard Lindzen of MIT has a great summary in the WSJ that mirrors a lot of what I delve into in my video.

Here are my seven alternative skeptics' claims I would like to see addressed:

Claim A: Nearly every scientist, skeptic and alarmist alike, agree that the first order warming from CO2 is small.  Catastrophic forecasts that demand immediate government action are based on a second theory that the climate temperature system is dominated by positive feedback.  There is little understanding of these feedbacks, at least in their net effect, and no basis for assuming feedbacks in a long-term stable system are strongly net positive.   As a note, the claim is that the net feedbacks are not positive, so demonstration of single one-off positive feedbacks, like ice albedo, are not sufficient to disprove this claim.  In particular, the role of the water cycle and cloud formation are very much in dispute.

Claim B: At no point have climate scientists ever reconciled the claims of the dendroclimatologists like Michael Mann that world temperatures were incredibly stable for thousands of years before man burned fossil fuels with the claim that the climate system is driven by very high net positive feedbacks.   There is nothing in the feedback assumptions that applies uniquely to CO2 forcing, so these feedbacks, if they exist today, should have existed in the past and almost certainly have made temperatures highly variable, if not unstable.

Claim C: On its face, the climate model assumptions (including high positive feedbacks) of substantial warming from small changes in CO2 are inconsistent with relatively modest past warming.  Scientists use what is essentially an arbitrary plug variable to handle this, assuming anthropogenic aerosols have historically masked what would be higher past warming levels.  The arbitrariness of the plug is obvious given that most models include a cooling effect of aerosols in direct proportion to their warming effect from CO2, two phenomenon that should not be linked in nature, but are linked if modelers are trying to force their climate models to balance.  Further, since aerosols are short lived and only cover about 10% of the globe's surface in any volume, nearly heroic levels of cooling effects must be assumed, since it takes 10C of cooling from the 10% area of effect to get 1C cooling in the global averages.

Claim D: The key issue is the effect of CO2 vs. other effects in the complex climate system.  We know CO2 causes some warming in a lab, but how much on the real earth?  The main evidence climate scientists have is that their climate models are unable to replicate the warming from 1975-1998 without the use of man-made CO2 -- in other words, they claim their models are unable to replicate the warming with natural factors alone.  But these models are not anywhere near good enough to be relied on for this conclusion, particularly since they admittedly leave out any number of natural factors, such as ocean cycles and longer term cycles like the one that drove the little ice age, and admit to not understanding many others, such as cloud formation.

Claim E: There are multiple alternate explanations for the 1975-1998 warming other than manmade CO2.  All likely contributed (along with CO2) but it there is no evidence to give most of the blame to Co2.  Other factors include ocean cycles (this corresponded to a PDO warm phase), the sun (this corresponded to the most intense period of the sun in the last 100 years), mankind's land use changes (driving both urban heating effects as well as rural changes with alterations in land use), and a continuing recovery from the Little Ice Age, perhaps the coldest period in the last 5000 years.

Claim F: Climate scientists claim that the .4-.5C warming from 1975-1998 cannot have been caused natural variations.  This has never been reconciled with the fact that the 0.6C warming from 1910 to 1940 was almost certainly due mostly to natural forces.  Also, the claim that natural forcings could not have caused a 0.2C per decade warming in the 80's and 90's cannot be reconciled with the the current claimed natural "masking" of anthropogenic warming  that must be on the order of 0.2C per decade.

Claim G: Climate scientists are embarrassing themselves in the use of the word "climate change."  First, the only mechanism ever expressed for CO2 to change climate is via warming.  If there is no warming, then CO2 can't be causing climate change by any mechanism anyone has ever suggested.   So saying that "climate change is accelerating" (just Google it) when warming has stopped is disingenuous, and a false marketing effort to try to keep the alarm ringing.  Second, the attempts by scientists who should know better to identify weather events at the tails of the normal distribution and claim that these are evidence of a shift in the mean of the distribution is ridiculous.  There are no long term US trends in droughts or wet weather, nor in global cyclonic activity, nor in US tornadoes.  But every drought, hurricane, flood, or tornado is cited as evidence of accelerating climate change (see my ppt slide deck for the data).  This is absurd.

Update on Joe Romm Oil Bet

I realize I did not comment on the Joe Romm oil price bet per se.  Here are two reasons I don't like the bet:

1.  Romm is making a catastrophic forecast (ie oil >$200) but wins his bet at $41, what one might consider a fairly normal current oil price.  This is very equivalent to Romm forecasting a 15F increase in world temperatures in the next century (which he has) but making a bet that he would win if temperatures go up by only 0.1F.  Clearly, a 0.1F increase over the next century would be considered by all a thorough repudiation of catastrophic anthropogenic global warming forecasts.  So why should he win the bet at this level?

2.  The bet, particularly in the next few years, has more to do with the current government's actions than Exxon's or Saudi Arabia's.  To bet that oil prices will stay low in nominal dollars, one must bet that Obama's deficits won't destroy the value of the dollar, that the Fed's expansionist monetary policy won't lead to inflation, that Congress won't pass some kind of legislative restrictions making oil production more expensive, and that the world won't sign a treaty to restrict carbon.  In short, Congress will have more effect in the near term on oil prices than flow rates in Saudi fields, and I am certainly not going to make a bet in favor of Congressional or Presidential restraint.

Postscript: Here is what you have to believe to accept Romm's 15F global warming forecast.   Here is how I opened that post.  It is interesting how similar the forecasting issues are:

For several years, there was an absolute spate of lawsuits charging sudden acceleration of a motor vehicle "” you probably saw such a story:  Some person claims they hardly touched the accelerator and the car leaped ahead at enormous speed and crashed into the house or the dog or telephone pole or whatever.  Many folks have been skeptical that cars were really subject to such positive feedback effects where small taps on the accelerator led to enormous speeds, particularly when almost all the plaintiffs in these cases turned out to be over 70 years old.  It seemed that a rational society might consider other causes than unexplained positive feedback, but there was too much money on the line to do so.

Many of you know that I consider questions around positive feedback in the climate system to be the key issue in global warming, the one that separates a nuisance from a catastrophe.  Is the Earth's climate similar to most other complex, long-term stable natural systems in that it is dominated by negative feedback effects that tend to damp perturbations?  Or is the Earth's climate an exception to most other physical processes, is it in fact dominated by positive feedback effects that, like the sudden acceleration in grandma's car, apparently rockets the car forward into the house with only the lightest tap of the accelerator?

So Why Does Joe Romm Even Bother With Cap and Trade?

Joe Romm of Climate Progress is a leading climate alarmist, telling the world that burning fossil fuels will increase CO2 concentrations by 0.04% of the atmosphere over the next century and thus destroy mankind.  As such, he is a supporter of the current cap-and-trade bill in Congress, whose purpose is to raise the price of fossil fuels (either directly as a tax or by restricting their supply) so that less will be used.

On a different but related topic, Joe Romm is also apparently a peak oil alarmist.  As I have written, I suspect real oil prices will rise steadily over the coming decades, but we aren't going to fall off some cliff and see a sudden hyperinflation of oil prices (temporary spikes are a different story).  He writes

The IEA's work makes clear that for oil to stay significantly below $200 a barrel (and U.S. gasoline to be significantly below $5 a gallon) by 2020 would take a miracle

I tend to doubt it, in part because I have seen so many very similar predictions ever since the mid-1970s, but I suppose some day someone will be right with one of these.   I wonder if there is some kind of psychological profile that causes people to see positive feedback-driven accelerating curves everywhere.

But here is my confusion -- he is absolutely convinced that oil is going up by $140 a barrel or more.  Let's look at this in the context of Co2.  The CBO estimates the clearing price for a ton of Co2 emissions under the current bill will be between $20-$30 a ton.  Since a barrel of oil creates about a third of a ton of CO2 emissions, this implies the cap and trade bill might increase the price of oil by $7-$10 per barrel.  But if Romm think oil is going up by natural market forces by $140+, why even bother?  Why not just put a tax on coal and be done with it?

I congratulate Mr. Romm, however.  If he is so sure of 2020 oil prices, there are all kinds of fabulous ways to become ridiculously wealthy with this knowledge.

Postscript:  There are two reasons why people have been making this same forecast for 30 years and have been wrong most of the time.

First, there is a very human tendency to assume current conditions and trends will go on forever.  Everyone is subject to this bias, even the smartest analysts.  Romm might argue that these are savvy, detail-oriented commodities analyst, but I only have to point to the recent behavior of savvy detail-oriented debt security analysts.

Second, analysts tend to apply current understandings of what technologies and substitutes are economic at $60 oil to a world where oil is priced at $160.  It just doesn't work that way.   The market for petroleum and its substitutes is enormously multi-variate and complex.  A $100 bump in prices will do things that are sometimes hard to predict in detail to the markets for exploration, new technologies, substitutes, conservation, etc.  But in all this complexity, the one thing we do know is that time and again, such changes have occurred quickly and decisively in response to rising oil prices, and have acted to mitigate and reverse price increases.

One ironic way of looking at it, since this is Joe Romm, is to say that there are negative feedbacks that cut in to slow and even reverse sharp rises in oil prices.  Romm seems to reject these negative feedbacks, in favor of a price model that rapidly accelerates.  This is all ironic, since this issue of negative vs. positive feedback is what separates climate alarmists like Romm from many climate skeptics like myself.

Get Bob Cratchitt to Do It

The Town of South Attleboro, MA sent out wildly threatening past due letters for folks with balances as low as 1-cent  (thereby investing at least 42 cents to get one back).  In response to charges that this was stupid, City Collector Debora Marcoccio responded:

A computer automatically printed the letters for any account with a balance remaining, and they were not reviewed by staff before being sent out, Marcoccio said.

"It would be fiscally irresponsible for me to have staff weed through the bills and pull out any below a certain amount," Marcoccio said. " And what would that amount be?"

What, are we living in the 19th century with clerks in a musty room preparing bills by hand?  This fix probably requires one whole entire line of program code in the billing system to fix.  I could probably teach myself to code whatever language the payroll system is written in (my guess is COBOL, which, god help me, I already know) in less time than this woman has spent fielding complaints and media inquiries.  Compare this to what TJIC has to do just to get the mail out.

And don't you love people who don't even have enough spine to make a simple decision about the cutoff for minimum bill size.  I have found this is one of those things the government is really, really bad at -- making decisions under uncertainty  (which covers about all decisions, except routine ones embodied in SOP).  Government has no incentives, in general, for productivity, or production, or customer satisfaction.  The only time government employees get feedback at all is when they get negative feedback from having someone yell at them for making a decision that some higher-up didn't like..  So if a decision is not justifiable either by past precedent/SOP or explicitly by the rules, it is not made.

By the way, I had a personal programming milestone last night.  I finally built a website without using a WYSIWIG editor that formatted the way I wanted it to all in CSS without a single table.  I predict that now that I have finally gotten a decent handle on CSS, which mainly consists of learning all the workarounds for when it doesn't work as you would expect, that someone is about to introduce a whole new system for formatting web pages.

Advice to Climate Alarmists

If you are going to lecture skeptics on science, it is probably a good practice not to begin with an analogy that gets the most basic physics incorrect (hint:  the fact that falling objects of different masses fall at the same rate has been "settled science" since the late 1500s).  Also, using the children's book "If you give a mouse a cookie..." as proof of the existence of positive feedback loops will not be very persuasive to practitioners of big-boy physical sciences and other non-post-modernist researchers.

Modern Witch Trials

Kevin Drum, while sympathetic (as we all are) to the plight of parents of kids with autism, is obviously frustrated that a few people with no science behind them are causing kids to go un-vaccinated.  Both he and Megan McArdle suggest some reasons for this.  I added this in the comment section:

It all strikes me as part of the general rebellion against reason we see today, alas.

Last week in my class on the late Middle Ages, we learned about the
early origins of witchcraft denunciations. Most denunciations were
initiated by someone who had undergone a tragedy that seemed
inexplicable -- e.g. the death of a loved one due to disease or a crop
failure or, most commonly, the death of a child. It seems to be part of
human nature to seek out something or someone to blame, and in this case
people latched onto the least sympathetic, most marginalized people
around them (often widowed women) and accused them of witchcraft as the
cause for their tragedy.

The parallels, to me, are striking. I think many of the witchcraft accusers had the same
motivation with the Thimerosal crowd, with only the target changing (now drug companies are the
unsympathetic ones). The only real difference is that we have in fact
added a positive feedback to this point of human nature, by creating a
tort system dominated by sympathy over reason, which tends to pay off
on such wild accusations of witchcraft. 

Breast implant makers?  Burn them!  Vaccine manufacturers?   Burn them!  Obstetricians?  Burn them!

Thoughts for the Day

Happy Birthday Vladimer Lenin Earth Day.  I have a few thoughts for the day:

Sucking the Oxygen Out of the Environmental Movement

Observe today how little of the discussion is about anything other than climate.  There are still many environmental issues in the world that can be improved by the application of man's effort and technology -- unfortunately, climate is the least of these but the issue getting the most attention.  Consider how the global warming panic has sucked the oxygen out of the environmental movement.  Ten years from now, I predict that true environmentalists will be looking back on the hysteria over trace amounts of CO2 in the atmosphere as a huge setback for real environmental progress.

Environmentalism and Socialism

If you attend any Earth Day events today, notice how many of the speeches and presentations and such are anti-corporate, anti-trade, anti-capitalist, anti-wealth screeds, and have little to do with the environment.  If you actually go to a live Earth Day event, you will see why the selection of Lenin's birthday was no accident.  You will not see this on the network news, because the media is sympathetic to the environmental movement and tends to edit the socialist rants out as PR protection for the environmentalists, knowing that American audiences would lose sympathy for them if they listened to the whole package. (This is mostly an American phenomenon - I have found from my brief travels in Europe that the media there does less such editing, perhaps because they know their audience is more comfortable with socialism).

The Climate Denier Trick

There are a lot of reasons not to be worried about "inaction" on global warming.  To justify the enormously expensive cuts in CO2 productions, on the order of 80% as supported by Obama and Clinton, one has to believe every element of a five-step logic chain:

  1. Mankind is increasing CO2 concentrations in the atmosphere
  2. Increased atmospheric CO2 causes the world to warm (by some amount, large or small)
  3. The increases in CO2 from man will cause substantial warming, large enough to be detectable above natural climate variations
  4. The increases in world temperatures due to man's CO2 will have catastrophic impacts on civilization
  5. These catastrophic impacts and their costs are larger than the enormous costs, in terms of poverty and lost wealth, from reducing CO2 with current technologies.

Climate alarmists have adopted a rhetorical trick that no one in the media seems willing to call them on.   They like to wage the debate over global warming policy on points one and two only, skipping over the rest.  Why?  Because the science behind numbers one and two are pretty strong.  Yes, there are a few folks who will battle them on these points, but even very strong skeptics like myself accept points one and two as proved. 

Here are some examples of how this trick works.  If, like me, you do not accept steps 3-4-5 in the above logic chain, you will be called a "denier."  When asked what a denier means, a climate alarmist will often position this denial as somehow disputing #1 and #2.  On the other hand, if one publicly accepts #1 and #2, the alarmist will shout "QED" and then proceed to say that strong action on CO2 is now justified.  When an alarmist says that the a consensus exists, he is probably correct on points 1 and 2.  But he is absolutely incorrect that a consensus exists on 3-4-5.

Don't believe me?  Think back to the early Republican debate, where the moderator asked for a show of hands whether [I can't remember the exact question] man was causing global warming.  The implication is that you either have to accept this whole logic chain or not.  One can see why Fred Thompson begged to have 90 seconds to explain his position, and why the moderator, presumably in the alarmist camp, denied it to him. 

Over the last year or two, skeptics have gotten a lot better at making their argument.  Most all of them, like I do, begin their arguments by laying out a logic chain like this and explaining why one can believe that man-made greenhouse gases cause warming without accepting the need for drastic climate action.  The result?  Alarmists have stopped debating, and/or have declared that the debate is "over."  Remember that last great Al Gore climate debate?  Neither do I.

The Single Best Reason Not To Be Worried About Climate

I could, and have, in my books and videos, made arguments on many points in 3-4-5 (links at the bottom of the post).  In four, no one ever considers the good effects of warming (e.g. on growing seasons and crop yields) and most every other problem is greatly exaggerated, from hurricane formation to sea level rises.  And in five, every time someone has tried to put a price on even small reductions in CO2, the numbers are so enormous that they are quickly suppressed by a environmentalist-sympathetic media.  Suffice it to say that even the climate-sanctimonious Europeans have not been willing to pay the price for even slowing down their CO2 growth (which has risen faster than in the US), much less reducing it.

But in this logic chain, there is little need to argue about four and five if #3 is wrong.  And it is.

The effects of CO2 acting alone on temperatures are quite small -- And everyone, even the alarmists, agree!  A doubling of CO2 concentrations, without other effects that we will discuss
in a moment, will heat the earth no more than about 1 degree Celsius (though several studies recently have argued the number is much less).  This is not some skeptic's hallucination -- this is
straight out of the IPCC third and fourth assessments [IPCC text quoted here].  In fact, the IPCC in their reports has steadily reduced their estimate of the direct contribution of CO2 on temperatures.  CO2, acting
alone, warms the Earth only slowly, and at this rate we would see less
than a degree of warming over the next century, more of a nuisance than
a catastrophe.

But some scientists do come up with catastrophic warming
forecasts.  They do so by assuming that our Earth's climate is
dominated by positive feedbacks that multiply the initial warming from
CO2 by a factor of three, four, five or more.  This is a key point -- the
catastrophe does not come from the science of greenhouse gases, but
from separate hypotheses that the earth's climate is dominated by
positive feedback.
This is why saying that greenhouse gas
theory is "settled" is irrelevant to the argument about catastrophic
forecasts.  Because these positive feedbacks are NOT settled science.

In fact, the IPCC admits it does not even know the sign of
the most important effect (water vapor), much less its magnitude.  They
assume that the net effect is positive, and in fact strongly so - on the order of 60-80% feedback or more, nearly unprecedented numbers for a long-term stable physical system [more on feedback and its math here].  This is particularly ironic because alarmist Michael Mann, with his hockey stick, famously posited that temperatures over the last 1000 years were incredibly flat and stable until man started burning fossil fuels, a proposition that is hard to believe if the climate is dominated by strong positive feedback.   Note that when people like Al Gore say things like "tipping point," they are in effect hypothesizing that feedback is greater than 100%, meaning that climate can be a runaway process, like nuclear fission.

In fact, with the 100 or so years of measurements we have for temperature and CO2, empirical evidence does not support these high positive feedbacks.
Even if we assign all the 20th century warming to CO2, which is
unlikely, our current warming rates imply close to zero feedback.  If
there are other causes for measured 20th century warming other than
CO2, thereby reducing the warming we blame on CO2, then the last
century's experience implies negative rather than positive feedback in
the system.  As a result, it should not be surprising that high
feedback-driven forecasts from the 1990 IPCC reports have proven to be
way too high vs. actual experience (something the IPCC has since
admitted).

However, climate scientists are unwilling to back down from the thin
branch they have crawled out on.  Rather than reduce their feedback
assumptions to non-catastrophic levels, they currently hypothesize a
second man-made cooling effect that is masking all this feedback-driven
warming.  They claim now that man-made sulfate aerosols and black
carbon are cooling the earth, and when some day these pollutants are
reduced, we will see huge catch-up warming.  If anything, this cooling
effect is even less understood than feedback.  What we do know is that,
unlike CO2, the effects of these aerosols are short-lived and therefore
localized, making it unlikely they are providing sufficient masking to
make catastrophic forecasts viable.  I go into several reality checks
in my videos, but here is a quick one:  Nearly all the man-made cooling
aerosols are in the northern hemisphere, meaning that most all the
cooling effect should be there -- but the northern hemisphere has
actually exhibited most of the world's warming over the past 30 years,
while the south has hardly warmed at all.

In sum, to believe catastrophic warming forecasts, one has to believe both of the following:

  1. The climate is dominated by strong positive feedback, despite
    our experience with other stable systems that says this is unlikely and
    despite our measurements over the last 100 years that have seen no such
    feedback levels.
  2. Substantial warming, of 1C or more, is being masked by aerosols,
    despite the fact that aerosols really only have strong presence over
    5-10% of the globe and despite the fact that the cooler part of the
    world has been the one without the aerosols.

Here's what this means:  Man will cause, at most, about a degree of
warming over the next century.  Most of this warming will be
concentrated in raising minimum temperatures at night rather than
maximum daytime temperatures  (this is why, despite some measured
average warming, the US has not seen an increase of late in maximum
temperature records set
).  There are many reasons to believe that man's
actual effect will be less than 1 degree, and that whatever effect we
do have will be lost in the natural cyclical variations the climate
experiences, but we are only just now starting to understand.

To keep this relatively short, I have left out all the numbers and
such.  To see the graphs and numbers and sources, check out my new climate video, or my longer original video, or download my book for free.

Update: Very relevant article by Roy Spencer on the over-estimation of feedback in climate models.

Many of us, especially those who were trained as meteorologists,
have long questioned the climate research community's reliance on
computerized climate models for global warming projections.  In
contrast to our perception that the real climate system is constantly
readjusting to internal fluctuations in ways that stabilize the system,
climate models built upon measured climate behavior invariably suggest
a climate system that is quite sensitive - sometimes catastrophically
sensitive "” to perturbations such as those from anthropogenic
greenhouse gas emissions.  Unfortunately, it has been difficult to
articulate our "˜hand-waving' concerns in ways that the modelers would
appreciate, i.e., through equations.   

After years of pondering this issue, and after working on our two
latest papers on feedbacks (Spencer et al., 2007; Spencer and Braswell,
2008, hereafter SB08), I believe that I can now explain the main reason
for this dichotomy.   Taking the example of clouds in the climate
system, the issue can be introduced in the form of a question:

To what extent are climatic variations in
clouds caused by temperature change (feedback), versus temperature
change being the result of cloud variations? 

My New Favorite Audio Device

About two years ago I made the time investment to rip all my CD's to digital  (this was a real death-march, at 20 CDs a night for a month).  In doing so, I actually ripped every one of them twice:  once into a small, variable bit-rate MP3 file for my iPod, and a second time into a much larger FLAC digital file  (this is an open-source lossless compression format).  All the FLAC files sit on an old computer on my network that does nothing but act as a file server for these music files.

Now, having lots of nice, high quality digital files, the trick is to play them through my home audio system.  My first solution was an iPod dock on my home audio system, but I found this awkward.  Next, I added a Squeezebox from SlimDevices, a small inexpensive box that hangs on the network that basically takes the digital files off the network and puts then in an analog or digital signal my stereo system knows what to do with.    SlimDevices has always been a favorite among audiophiles, because of their open-source approach and their willingness to continue to improve their product with user feedback.  And, they are pretty reasonably priced.

Both of these solutions suffered from one problem.  My living room is fairly large, and while each system had a remote, the menu screen I was navigating was way over there, either on the small iPod screen or on the larger squeezebox screen.  Either way, I still did not like the ergonomics.

In their new version of the Squeezebox
, Slimdevices has come out with what I consider the near perfect streaming audio device.  The product consists two pieces.  First, the audio device, which is pretty small, that hangs on the network (either by cable or wireless) and does the same job as the old boxes I had, converting digital music files to a format my music equipment can handle.  The key area of improvement is in the remote control.   The remote communicates with your wireless network, and allows one to scroll through his whole music collection right on the remote in an interface nearly identical to the iPod, including album cover art if one so chooses. (click for larger view)

Duet_hero_500_2

 

I have had this new Squeezebox for over a month now, and I love it.  For those of you with a lot of CDs, like I have, it is just amazing how much more I listen to my music collection with this setup.  In the old world of shuffling through CD cases in a rack, I would tend to get the same five or six in a rotation.  Now, I listen to much more.  The remote also has a headphone jack so it can operate like a portable music player  (as long as it is in range of your wireless network).

By the way, I know there are devices like this that are all-in-one, meaning that they have their own hard drive so you don't need to network it to a computer.  I find those boxes to be a) way expensive and b) difficult to upgrade.  The cost of a cheap computer (it does not need much of a processor to just serve digital files up to the network) with a good size hard drive is cheap, and is the perfect use for an old computer you have upgraded.  The only real flaw of this device is its inability to do video, but SlimDevices has always focused on audio and will probably stay that way.

And the Winner Is...

Mixed news on the contest front.  My outline and draft novel did not make the finals of the Mackinac Center's Freedom in Fiction Prize.

However, my 3-minute climate video did win second place in the Kids and Globaloney contest

The results surprise me a bit.  I really felt good about my story concept for the fiction prize, so much so I will likely finish it and at least release it as an e-book.  On the other hand, I found the 3-minute limit almost impossible to make work in the video contest, and thought my video, which I include below, was rushed.

A better version is the 9-minute version here which covers the same subjects but with a bit more leisure and explanation.  This video, however, is a bit dated.  As I write in the YouTube comments, I want to take a better shot at explaining the issues around positive feedback.  I think I can fix it with just a rewrite of the narration.  That longer video is here and below.

My really long video, 60-minutes in 6 parts, is here.

Wherein A Libertarian Argues For Regulation Enforcement

I got to thinking today about regulation and its enforcement in this imperfectly government-dominated world after reading this Jon Stewart quote as relayed by Kevin Drum:

With this administration, if a passenger blows up a plane, it's a
failure in the war on terror. But if the plane just blows up on its own
"” eh, it's the market self-regulating.

What struck me that I had not thought of before is the question of whether non-enforcement of a published regulatory regime was the same as letting a market self-regulate.  And my answer was:  No, at least not in the short to medium term.

The reason is that the government regulatory regime crowds out private mechanisms that might attempt to achieve the same goals.  What do I mean by crowding out?  For example, if the government published car reliability metrics and regulation for all cars, no matter how imperfect, would JD Power and Consumer Reports bother with the investment to do the same?  For decades, insurance companies wrote de facto building codes and performed fire inspections of their insured structures.  They no longer do so, because the government has taken on that role (arguably less well than the insurance companies, who had the reputation of being tigers on such inspections).  Would Moody's exist to rank bond risks if the government had regulations in place that theoretically forced all securities to (I don't know how) have the same risk?  My marina liability insurer conducts occasional inspections of my marinas.

As a result, insurers don't inspect airlines, nor do manufacturers enforce inspection and replacement regimes (as automobile companies do, to some extent, to protect their warranty).  Third parties rate airlines for customer service but not for safety.  The whole private evaluation regime for airlines exists on the assumption that the government has regulatory program X and Y in place that is enforced.  In the long term, if the government were to abandon enforcement, and this lasted long enough for that expectation to exist in the market, new private regulatory methods would arise [arguments would most certainly exist between libertarians and others whether these new regimes were as effective as the old regime, but almost undoubtedly something would emerge].  But in the near term, we don't have a self-regulating market or even the expectation of one. 

As a result, I come to the conclusion that while deregulation may be needed, the absolute wrong way to do it is via non-enforcement of existing regulations.  So there you have it, a libertarian calls for better enforcement.  Comments?  I am just starting to think about this and would appreciate feedback.