Showing posts with label global warming. Show all posts
Showing posts with label global warming. Show all posts

Tuesday, March 17, 2009

A worthwhile climate lecturer.

Paul Kushner of the University of Toronto gives a truly outstanding hour-long introduction to climate modeling for the scientifically literate audience, managing also to slip in some of his current work, for illustrative purposes, near the end.

I got a chance to sit in on it earlier today, while visiting Stanford University. I recommend him highly as a speaker, if you get the chance to invite him.

Tuesday, February 3, 2009

Two worthwhile new climate websites.

The Institute for Environment and Society and the Climate Assessment for the Southwest, both projects of the University of Arizona, have established a website, the Southwest Climate Change Network to better educate the public concerning the effects of climate change, largely tied to global warming, on the Southwestern U.S. and Northern Mexico. It's approachable but with very close connection to rigorous science, something with which we can hit think-tank pseudoscholars over the head when they claim, again, that Global Warming is Totally Made Up, and It's Good for Us, And It's the Sun, Stupid.

But if they remain so obstinate as to not read anything past the third-grade "USA Today" level, send them over to This is Reality, a website devoted to combating the myth of clean coal. No rigor here, at least not on the page, just quotations from publications and a sign-up for mythbusting alerts to be sent when yet another fossil fuel industry whitepaper has the noise machine a-going.

Tuesday, December 16, 2008

Why the RKBA movement turns off highly-educated urban dwellers.

A little speculation, spurred on by some of the remarks made at the Bill of Rights Day event held today in Phoenix:

Educated people, even highly educated people, are seemingly more prone to holding crazy positions on two topics more than any others: gun control and anthropogenic global warming. To slander scientists and make silly statements about the state of climatology is nearly a tribal trust signifier among both conservatives and libertarians; among highly educated urban dwellers--especially academics and graduate students--to oppose any and all forms of gun liberalization is a similar shibboleth. Try challenging either on facts, or asking the latter just where passage of shall-issue concealed carry has proved problematic. The answers you get will be amusing.

Both AGW deniers and hoplophobes deserve public and private shaming, as their positions are not rational. But it's worth keeping in mind that they're not rational and tailoring one's rhetoric accordingly. One cannot say that anticapitalists have dominated environmentalism, but they're screaming the loudest. To the uninitiated, that is what environmentalism is: opposition to humanity, liberty, civilization, and markets. This is why it's important to be the visible environmentalist. You want your peers to think of you, and not the unwashed, half-deranged lifestyle-activist, when they think of people who take seriously scientific studies of Man's effect on the climate (or, more generally, his fouling of the nest).

The RKBA movement has its own lifestyle-activists, who signal clearly (if incorrectly) to the uninitiated that people who advocate liberalization of firearms laws are Not Like Us. Do you know the type? Think of the person who believes that the purpose of the right to keep and bear arms is to give a universal heckler's veto over the government by means of murder. Some official isn't following your ab initio interpretation of the Constitution? Shoot him and put his "head on a pike", to borrow the phrase I heard one too many times tonight. A thousand Carl Dregas, that's the ticket. Every man, woman, and child, rightly or wrongly, can draw a line in the sand and shoot officials who cross it. Natural rights all the way!

I propose a rule. You can call it Kalafut's Rule, if you will. If you consider yourself a respectable person, do not hide your beliefs. It is better that your neighbors and colleagues think of you and not the screaming, outlandish bozo when they read of activism concerning this issue or that, or when they hear that a bill that you would support has been introduced at the legislature. If you've taken the only honest position on global warming that isn't "I don't know enough", be the visible supporter of the AGW hypothesis. And if you support RKBA, be the visible RKBA supporter.

Wednesday, January 30, 2008

Text-bite: George Phillies on anti-environmentalists

From his campaign's statement on energy and the environment:

Attacks on scientific global warming observations have substantially passed their time. Many attacks are a political waste product, resulting from 1970s feuds between Republicans and environmentalists over air and water pollution. The feuds are so ingrained that they are being recycled.


I've felt for several years like a lone-gunman in the libertarian movement. Many old libertarians have had Patrick Michaels and Fred Singer whispering in their ears for so long that they come from a different planet, where climatologists are so incompetent as to neglect solar effects, concern for the environment is a socialist ploy, and the anthropogenic global warming thesis simply Must Be Wrong: liberty depends on it. One, of late, said that talk of biodiversity loss was "eco-theology".

How can I even have an intelligent discussion with someone so ignorant, who has had at least eighteen years to learn why scientists and the educated public find such things of concern, but simply hasn't bothered? Worse still, the man's a PhD economist!

Thanks to one of the frontrunners in the LP race, or at least a well-informed campaign staffer, for easing my burnout, if only momentarily.

Thursday, November 29, 2007

The Sokal'd "climate skeptics" show their true colors.


For a while I've maintained that:

  • Most climate skeptics are convinced that Man's activities are causing global waming.
  • "Skeptic" is not a mere synonym for "doubter"; most of those who fancy themselves to be "climate skeptics" are not approaching the topic in a skeptical fashion.
  • Of that number, many are merely parroting each other, without critically evaluating the arguments.


Like Schumpeter's enemies of capitalism, the "climate skeptics", or denialists, already know the verdict against the theory of anthropogenic global warming: what changes is the indictment. First the earth is not, in fact, warming, then the warming is a Milkanovitch cycle, or of solar origin, or a rebound from the (nonexistent) worldwide Little Ice Age. Climate models are not to be trusted, because they don't fit the data with an R^2 value of zero, because they don't predict next week's weather, because they're missing this feedback or that. Uncertainty means that a 5% chance becomes categorical doubt. We've all seen the game played before: it's foolishness, the scientific illiterates being willingly defrauded by the scientific illiterate, court-room flim-flam thrown up against physics, convincing to people who can't tell the difference.

At much risk to his reputation, Reason science correspondent Ronald Bailey admitted that his approach has been less than honest. Bailey "hoped that the scientific evidence would lead to the conclusion that global warming would not be much of a problem, so that humanity could avoid the messy and highly politicized process of deciding what to do about it," (emphasis mine), and he let that hope cloud his judgement, to the point where he totally discounted computer simulations (how else can we tell what climatological theories predict?), instead of approaching the scientific question with a frank attitude and an open mind.

The boiler rooms, 'blogs, and talk-radio shows chugged on long after Bailey's admission, but they've been relatively quiet for the past month, having been caught with their pants down. Rush Limbaugh, Neil Craig and hundreds of other 'bloggers, and even Reason Magazine, promoted patent nonsense as a damning argument against the theory of anthropogenic global warming. The journal, "Journal of Geoclimatic Studies", was fake, its home university, Okinawa University, doesn't exist, moreover, there is no Department of Climatology at the University of Arizona. I work in the building that houses the closest thing, the Department of Atmospheric Sciences, and I can tell you that there's no Dan Klein, either.

If that wasn't enough to alert the authors to the hoax, the text of the paper itself is a dead giveaway. Like Alan Sokal's foray into "cultural studies", it's nonsense interspersed with passages to flatter the prejudices of the targets. In this case, that means symbols strung together meaninglessly in place of formulas, and technolalia--for example, "concretised diachronic invariance"--that would make a Star Trek writer blush. The graphs are smooth curves where they should be of data points and error bars, and their scales are hilarious; just what does a sine curve mean on a semilog plot? A comparison between benthic bacterial mass and temperature is clearly the same hand-drawn squiggle translated and drawn on a different color on the same plot. Strong correlation, indeed! This was no subtle hoax and the denialists can't say they were tricked; the authors went out of their way to make the paper look bogus!

It was already doubtful that the denialists read scientific papers, and even more so that they read them critically. The discussion section, with its firm rebuttal of AGW, its gratuitous scare quotes around "consensus" and its portrayal of scientists as cowering in fear of funding agencies, was enough. We're left to conclude either that the denialists don't bother to check arguments for scientific merit (plausible, since they repeat debunked claims over and over) or that they can't distinguish between science and nonsense.

Regardless, they're on their heels. Score one for the Good Guys. Can we get to talking about solutions?

Sunday, September 2, 2007

Edwards: "I can has candidacy?"

John Edwards is a LOLcandidate.

Unless we've "come from nothing", "supported workers", and "fought corporations" he'd like the Federal government to restrict our choice of automobile. Like purple-lined togas to the Romans, ownership of SUVs is to be restricted to those in professions the deemed noble by the soi-disant elites.

Both Edwards and myself support a cap on carbon emissions. Where we differ is in implementation. It appears as though Edwards would like the government, despite both its inability to know the best way of cutting emissions, to determine what CO2 emissions are allowed and which are forbid. Instead of implementing a system whereby people trade the right to emit CO2 into the atmosphere and determine for themselves whether each source of emissions is worth the cost, Edwards would implement the cap indirectly and incompletely by restricting gas mileage, "rebound effect" be damned!

Apparently Edwards has either never heard of emissions trading, doesn't understand it, or thinks his method superior. He's making Tancredo look reasonable, Paul look educated, and Obama look experienced. Can anyone tell me why he's considered a front-runner? And, moreover, given that Bill Richardson isn't, what's wrong with the Democratic Party?

Tuesday, August 14, 2007

A few guidelines for would-be climate skeptics.

The first rule of climate skepticism is to, when coming across a new refinement or correction to current climate science, take a deep breath, pour yourself a glass of wine if so inclined, mellow out, and wait.

"Skeptic" carries with it a connotation of prudence, a studied approach to a question, but most of the self-styled anthropogenic global warming (AGW) skeptics have a tendency away from this, towards believing everything they hear, or at least everything that could be naively taken to mean that the climatological consensus is incorrect. There is thus a tendency towards a petulant "Gotcha!"-ism, whereby countless individuals with little technical training, who haven't searched the literature for explanations, and who usually haven't even reasoned quantitatively about their objection, come to believe that they've outwit the dozens of working scientists (paid skeptics!) who've devoted careers to this problem.

To a scientist, even one like myself who specializes in something else, this looks like bad behavior behavior. Coming from economists like Dwight Lee and Jeffrey Clark it could be called unprofessional intellectual misconduct--pure hubris!--to assume that climatologists have simply "ignore[d] what seems to be a warming trend on Mars." But, pace Dawkins, we should not assume the lay denialist (reflexive rejector of the thesis that Man is a significant contributor to global warming) to be wicked.

That's a difficult proposition. Whereas a few generally stick with a calm albeit premature bandwagonism, the norm is venom, perhaps motivated by the crank belief that AGW is a conspiratorial hoax devised as a backdoor route to socialism.

We must remember that both scientific humility and the capacity to be a skeptic regarding technical issues are learned, not innate. Most of the public does not understand quantitative arguments, even more are so confused about science that they can't distinguish good from bad, and treat bumper-sticker flim-flam such as "Mars is warming!" as as solid an argument as anything found in Geophysical Journal. The tendency to translate quantitative uncertainties to categorical ones--to take the basic truth that climatologists are not always 100% correct, that there are error bars, and that they disagree with each other at the margins as evidence that the AGW thesis itself is in doubt--is perhaps instinctual. Some carry with them another misconception about science itself, no doubt picked up in grade school, which causes them to doubt climatology beyond reason climatology simply beacause it is an historical and observational science. "Control group, experimental group, laboratory..." These folks will not be satisfied until an experiment is run on a separate Earth we have on reserve and, in 500 years, one is shown to have warmed. Years of miseducation compound with arrogance to make bringing people to at least make cogent arguments an uphill battle. How can someone who doesn't even understand science be brought to argue scientifically?

I can't answer that one, but for other would-be skeptics, I offer an algorithm of sorts for prudence and responsibility, and that will ultimately help their case if their argument turns out to have merit:

  1. Give a little thought to the nature of your objection, and then state it clearly. For example, "Mars is warming!", if taken to be a prospective argument contra AGW, is a statement that what climatologists call AGW is actually caused by the sun, since solar irradiance and solar activity are what Mars and the Earth have in common. Similarly, if the small error in US climate data uncovered last Friday would falsify AGW or reopen the scientific debate, it would mean that, after revision, the global mean temperature would contradict the models and attribution studies on which the AGW thesis is based.

  2. Check the FAQs. Many of the common arguments contra AGW have been addressed and most do not deserve repetition. Do your part in lowering the noise level by refusing to spread any objection that lacks merit. Informed layman (climate skeptic) Coby Beck has done much of your homework for you by compiling an FAQ entitled "How to talk to a climate skeptic." The IPCC report itself has an associated FAQ document; New Scientist magazine and the Logical Science weblog have also put up high-quality FAQs which reference the technical literature.

    A weblog, Real Climate is maintained by a group of climatologists for the purpose of communicating with the educated public. Searching it with Google is usually a good way to find discussion of climate controversies. Had the angry mob waited six hours last Friday, they'd have found there a definitive argument for why the error uncovered by McIntyre was a molehill, not a mountain.

  3. If the FAQs don't hold an answer, search the literature.
    This is a prerequisite for the next step, anyway, and it's been made ridiculously easy by Google Scholar, which indexes most academic journals. I have found it an invaluable tool in my day-to-day biophysics research.

  4. If the answer cannot be found in the technical literature, write your argument as if to convince an expert in the field. The best way to do this is to prepare an article for submission to a mainstream scientific journal, so that it will pass the BS-check that is peer review.


In short, think like a scientist.

It's been brought to my attention that it's somewhat difficult to be a bona fide lay climate skeptic, as most people don't have access to a university library and can't afford to purchase article after article. There are admittedly few resources for the intellectual self-starter other than the technical literature. Even the Wikipedia article on the Greenhouse Effect doesn't present the underlying physics in anything more than a qualitative fashion. Real Climate is perhaps the best source for the educated layman. but Real Climate, being a weblog, doesn't start from the beginning.

I can certainly lay a lot of blame on the "skeptics" for not doing their homework, for believing conspiracy theories about the scientists, for claiming (contra common sense) that they're statist shills, and for general bad behavior, but climatologists could stamp out a good deal of this if they made a better effort at explaining AGW's peculiar logical structure and its underlying physics to interested, quantiatively competent free marketeers. Reflexive deniers abound, but not all doubters are denialists, even if it appears as though they don't even bother to check their concerns against the literature. All the majority of the public sees are hand-waving, qualitative arguments, most of them coming from journalists and activists, not scientists. They don't necessarily know that there's any deeper to dig!

Tuesday, August 7, 2007

The latest scam from the reflexive global warming denialists.

Shades of Kent Hovind here: Steven Milloy's (ironically named) JunkScience.com is purportedly offering a $100K reward to a person who "proves, in a scientific manner", that the following hypotheses are false.


  1. Manmade emissions of greenhouse gases do not discernibly, significantly and predictably cause increases in global surface and tropospheric temperatures along with associated stratospheric cooling.
  2. The benefits equal or exceed the costs of any increases in global temperature caused by manmade greenhouse gas emissions between the present time and the year 2100, when all global social, economic and environmental effects are considered.


If #1 was all that was needed, the winner can be found in the pages of (e.g.) Geophysical Journal. #2 is tricky and largely subjective.

Don't think for a minute that this is an honest offer. JunkScience.com--read, Milloy--makes the final call, which means that the objection to any submitted argument doesn't even have to be scientifically valid! Milloy has yet to voice any bona fide and quantitative objections to the prevailing theory, yet persists in denying it, even calling it a scam.

Furthermore, #2 is a weasel clause, especially from someone who thinks that air pollution, even in 1970, was "more of an aesthetic than a public health problem." That's false in itself (consider urban ozone, smog, and pollution related asthma), but it's also equivocal; one can't call (e.g.) acid rain and the associated ecological damage merely "aesthetic." We can expect Milloy to similarly discount ecological damage this time around. Even if not, the 93-year window provides an out; if AGW is a problem for our great-great grandchildren in 2201, it doesn't matter.

It gets better: Data cited must be readily available to the public. Scientific journals, as I've been reminded of late, aren't.

This contest is a scam, and its 14th Rule prohibits the defrauded from suing over it. Presumably, anyone smart enough to understand AGW also has a good nose for BS.