February 2007

Why Buy a Climate-Skeptic Cow When Milk is Cheap?

There’s been a bit of blogospheric buzz about this story in the Guardian that accuses the conservative American Enterprise Institute of offering $10,000 to scientists who will contribute articles to a collection responding to the recent report from the Intergovernmental Panel on Climate Change. The IPCC report pins the blame for global warming squarely on human activity, and warns that the rate at which atmospheric carbon dioxide concentrations are growing has been accelerating in recent years. The AEI, meanwhile, is known for such sober assessments as The Global Warming Joke. So there is some concern that the AEI is simply bribing scientists to go along with Big Oil’s party line. Personally, I think the Guardian article is getting a lot of attention because the polar bear picture is really cute.

At the Volokh Conspiracy, Jonathan Adler digs up the actual letter from AEI scholars Steven Hayward and Kenneth Green, as well as a note to AEI employees from President Christopher DeMuth. The argument of those on the We Call It Life side of the climate-change fence is that the AEI isn’t offering a bribe to scientists to distort their positions — they’re just collecting a bunch of articles from voices that might be skeptical anyway. Adler:

In these letters AEI was certainly seeking out prominent analysts willing to participate in a critical examination of the IPCC report, but I don’t think the letter suggests AEI wanted Professor Schroeder or anyone else to tailor their views to AEI’s agenda. Rather it looks to me like an effort to encourage those who have been critical of climate projections in the past to provide a detailed assessment of the new IPCC report.

All of which is completely true. Think what you will of the practice, but this is how the game is played (as Jack Balkin points out, more sarcastically). The point is, there’s no need to bribe scientists to be skeptical about climate change, or to hold any other industry-friendly minority position. There are enough scientists out there that there will inevitably someone who sincerely holds that view, as small as the minority might be. All you have to do is ferret them out, and then use your money to give them a megaphone in the public arena. The role of ExxonMobil’s cash isn’t to buy people off, it’s to dramatically amplify the voices of a small number of skeptics, so that the political discourse about the environment is dramatically different in tone and balance from the professional scientific discourse. And at that, they’re doing a fantastic job.

When I was an undergraduate (bear with me here) I spent a summer working at the Harvard-Smithsonian Center for Astrophysics. I worked with Sallie Baliunas, a CfA scientist who was a fellow Villanova astronomy grad, and was running an ambitious project to track chromospheric activity on a large sample of Sun-like stars. Sallie is an outstanding astrophysicist, and was a great advisor, as well as a friend. It’s no coincidence that I ended up going to grad school at Harvard’s astronomy department; the physics department didn’t like people from smaller schools and wouldn’t let me in, and Sallie helped convince the astronomy department to accept me.

Sallie also was, and continues to be, very right-wing, of the libertarian variety. Letting the free market do it’s job was the best strategy in nearly any circumstance, she firmly believed. Her interest in stellar variability led her to contemplating the role of Solar variability in the Earth’s climate, and she became convinced that changes in the Sun were essentially the only important factor in explaining changes in the Earth’s temperature. In particular, that human-produced emissions had nothing to do with it. Nothing about this belief was influenced in any way by large piles of cash offered by oil companies. But, once her views became known, they were more than happy to provide platforms from which to spread them; she’s now an editor at Tech Central Station, as well as a fellow of the George C. Marshall Institute.

Nobody could be more sincere in their views about climate change than Sallie is. I also happen to think that she’s dramatically wrong, as do the vast majority of (much more expert) scientists working on the question. But this is how the game is played — no need to bribe people when you can influence the public debate much more easily, and without fear that your targets won’t stay bribed. Unfortunately, oil companies have a lot more cash to spend on this purpose than the atmosphere does. Which is why public-minded scientists who agree with the carefully researched views of the IPCC need to keep hammering on the importance of doing something to fix this problem, before the damage is irrevocable.

I did want to highlight this bit from AEI President Chris DeMuth’s note to his employees:

Third, what the Guardian essentially characterizes as a bribe is the conventional practice of AEI—and Brookings, Harvard, and the University of Manchester—to pay individuals at other research institutions for commissioned work, and to cover their travel expenses when they come to the sponsoring institution to present their papers. The levels of authors’ honoraria vary from case to case, but a $10,000 fee for a research project involving the review of a large amount of dense scientific material, and the synthesis of that material into an original, footnoted and rigorous article is hardly exorbitant or unusual; many academics would call it modest.

I would like to go on record as not thinking of $10,000 for a review article as modest at all. In fact, I’m beginning to wonder why I’ve been doing it for years now without any honorarium whatsoever. If the AEI would like some review articles on the cheap, call me! I promise to be original, footnoted and rigorous.

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A Tranquil Star

Good science is always poetry; some writers are just better at bringing it out than others. In this week’s New Yorker, Primo Levi (in a posthumously translated story) shows us how it’s done.

An observer who, to his misfortune, found himself on October 19th of 1950, at ten o’clock our time, on one of the silent planets of al-Ludra would have seen, “before his very eyes,” as they say, his gentle sun swell, not a little but “a lot,” and would not have been present at the spectacle for long. Within a quarter of an hour he would have been forced to seek useless shelter against the intolerable heat—and this we can affirm independently of any hypothesis concerning the size and shape of this observer, provided that he was constructed, like us, of molecules and atoms—and in half an hour his testimony, and that of all his fellow-beings, would end. Therefore, to conclude this account we must base it on other testimony, that of our earthly instruments, for which the event, in its intrinsic horror, happened in a “very” diluted form and, besides, was slowed down by the long journey through the realm of light that brought us the news. After an hour, the seas and ice (if there were any) of the no longer silent planet boiled up; after three, its rocks melted and its mountains crumbled into valleys in the form of lava. After ten hours, the entire planet was reduced to vapor, along with all the delicate and subtle works that the combined labor of chance and necessity, through innumerable trials and errors, had perhaps created there, and along with all the poets and wise men who had perhaps examined that sky, and had wondered what was the value of so many little lights, and had found no answer. That was the answer.

Some poetic license with the concept of simultaneity, but that’s okay. Read the whole thing. Hat tip to Bob Kirshner, who was the fact-checker’s fact checker. There’s an accompanying article about the translation.

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Unto Himself

The usual joke about the Vice-Presidency is that it doesn’t come with any real powers or responsibilities, beyond attending the occasional state funeral. Dick Cheney has long aimed to change all that. But Talking Points Memo has stumbled on evidence of a more far-reaching strategy than most of us had discerned. In the ultimate “take lemons and make lemonade” jujutsu move, Cheney has re-interpreted the Constitutional vagueness of the powers of his office as evidence that he is an entirely distinct branch of government. (Via Majikthise.) Those past couple hundred years, in which we thought there were only three branches of government in the United States? Just a bad dream.

You think this is some humorous exaggeration, but no. Something called the “Plum Book” is supposed to be a directory of all appointed government officials, but the Office of the Vice-President has declared that it doesn’t have to participate. Instead, it submitted this paragraph:

The Vice Presidency is a unique office that is neither a part of the executive branch nor a part of the legislative branch, but is attached by the Constitution to the latter. The Vice Presidency performs functions in both the legislative branch (see article I, section 3 of the Constitution) and in the executive branch (see article II, and amendments XII and XXV, of the Constitution, and section 106 of title 3 of the United States Code).

Perhaps it’s for the best. He wouldn’t be very good at attending funerals, that’s for sure.

Cheney in Parka

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arxiv Find: Cycling in the Throat

One of the reasons we (or I, anyway) don’t do more science posts is that it’s hard to do a good job. Cutting and pasting and linking is easy, whereas it takes time to really absorb some interesting scientific concept and present it in a hopefully-understandable way. And we’re all amateur blogging hobbyists with day jobs.

But I had the idea that it might be fun to get glimpses at what is going on in the field by taking occasional amusing papers that appear on arxiv.org, and just reposting their abstracts here with a couple of words. If anyone doesn’t follow the details, that’s okay; think of it as performance art, and the abstracts as little prose poems.

Today’s arxiv find is hep-th/0701252, “Cycling in the Throat” by Easson, Gregory, Tasinato and Zavala. Here’s the abstract:

We analyse the dynamics of a probe D3-(anti-)brane propagating in a warped string compactification, making use of the Dirac-Born-Infeld action approximation. We also examine the time dependent expansion of such moving branes from the “mirage cosmology” perspective, where cosmology is induced by the brane motion in the background spacetime. A range of physically interesting backgrounds are considered: AdS5, Klebanov-Tseytlin and Klebanov-Strassler. Our focus is on exploring what new phenomenology is obtained from giving the brane angular momentum in the extra dimensions. We find that in general, angular momentum creates a centrifugal barrier, causing bouncing cosmologies. More unexpected, and more interesting, is the existence of bound orbits, corresponding to cyclic universes.

See? Poetry. The basic idea here is to explore what can happen when a 3-brane (which could be our visible universe, if all of the particles of the Standard Model were confined to it) doesn’t just sit there in the extra dimensions, but zooms and twirls around like a multidimensional figure skater. Ever since Randall and Sundrum caught on to the fun things that can happen when extra dimensions are “warped,” we continue to discover new and interesting scenarios for these hypothetical directions of space. This paper sets the branes to spinning, and steps back to look at the results, which apparently include bouncing cosmologies. I might worry about stability in the presence of perturbations, but that’s just something to do for a follow-up paper — we’ll never run out of good questions to ask.

Some other fun papers this week:

  • Jackiw and Pi, “Chiral Gauge Theory for Graphene,” cond-mat/0701760.
  • Bekenstein, “The modified Newtonian dynamics-MOND-and its implications for new physics,” astro-ph/0701848.
  • Bojowald, “Quantum gravity and cosmological observations,” gr-qc/0701142.
  • Brandenberger, “String Gas Cosmology and Structure Formation – A Brief Review,” hep-th/0702001.

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Sponsored Links

One of the fun aspects of using Gmail is the little ads for sponsored links that appear next to every message. I can’t imagine ever clicking on one of them, but it’s amusing to see what the Google mind thinks is related to the message content. For the most recent daily mailing from gr-qc@arxiv.org, here were the sponsored links that came along with it:

Fields Medal declined
Grigori Perelman has declined the 2006 Fields Medal for mathematics
www.thefirstpost.co.uk

the field center
how consciousness creates reality; an extraordinary eight-week course.
www.fieldcenter.org

The Theory of Everything
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NewPhysicsAndTheMind.net

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www.microoffice.us

Relativity Challenge
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Wanted: Scientists
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jobs.phds.org

Humidifier Filters
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So the scorecard is: two relevant links, three crackpot sites, one hilariously inappropriate understanding of the word “field,” and one perplexing sales pitch for humidifiers. But I kind of like the idea of attacking string theory via Google ads. I might just start advertising my own papers this way.

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