Archive for the ‘Science’ Category.

If the LHC People Had Any Sense of Humor

Apparently the LHC is back in business.  If the LHC had a sense of humor, they would announce that they are indeed going to try to create a man-made black hole and that the test is currently scheduled for December 21, 2012.

Cool

At first, I thought the headline was a joke on government programs.  It read something like "NASA Spitzer telescope discovers ring around Saturn."  I mean, duh.

But it turns out they did find a big, really cool and nearly invisible ring around the larger Saturn system.  Via the Reference Frame

Saturn's Largest Ring

This artist's conception shows a nearly invisible ring around Saturn -- the largest of the giant planet's many rings. It was discovered by NASA's Spitzer Space Telescope.

The artist's conception simulates an infrared view of the giant ring. Saturn appears as just a small dot from outside the band of ice and dust. The bulk of the ring material starts about six million kilometers (3.7 million miles) away from the planet and extends outward roughly another 12 million kilometers (7.4 million miles). The ring's diameter is equivalent to roughly 300 Saturns lined up side to side.

Banning Dissent, Even in Science

I am constantly amazed at the totalitarianism of the global warming community and their absolute intolerance of dissent.  One suspects that a reason more people are skeptical of alarmist predictions is that they know enough about human behavior to distrust someone who claims to be correct but refuses to respond to or even allow questions or replication.

Anthony Watt has a good example from the world of polar bears:

Exile for non-believers (PDF, press release)

Mitchell Taylor is a world's leading polar bear expert. He has studied a greater number of polar bear populations than anyone else. He has caught more polar bears than anyone else.

He was going to attend the 2009 meeting of the Polar Bear Specialist Group (PBSG). The name sounds technical, doesn't it? Unfortunately, in one of his papers, he wrote this somewhat self-evident, yet detailed, balanced, and carefully worded description of the polar bears' situation:

"The concern that polar bears will decline if the climate continues to warm is valid. However, the assertion that polar bears will become extinct unless immediate measures are taken to curb greenhouse gas emissions is irrational because it is inconsistent with the long-term persistence of polar bears through previous periods of warming and cooling; and because the IPCC climate model predictions 50 and 100 years into the future do not suggest a future with insufficient sea ice to support polar bears as a viable species."

What was the answer? He wasn't allowed to participate. Here is Mr Andrew Derocher's letter:

Hi Mitch,

The world is a political place and for polar bears, more so now than ever before. I have no problem with dissenting views as long as they are supportable by logic, scientific reasoning, and the literature.

I do believe, as do many PBSG members, that for the sake of polar bear conservation, views that run counter to human induced climate change are extremely unhelpful. In this vein, your positions and statements in the Manhattan Declaration, the Frontier Institute, and the Science and Public Policy Institute are inconsistent with positions taken by the PBSG.

I too was not surprised by the members not endorsing an invitation. Nothing I heard had to do with your science on harvesting or your research on polar bears - it was the positions you've taken on global warming that brought opposition.

Time will tell who is correct but the scientific literature is not on the side of those arguing against human induced climate change. I look forward to having someone else chair the PBSG.

Best regards,
Andy (Derocher)

If you are not familiar with Taylor's positions that are alluded to, as I understand it they include:  1) The fact that most polar bear populations have been rising rather than falling over the last decades and 2) polar bears have survived interglacial periods in which we believe all sea ice disappeared.

Most of y'all know I have a parallel blog on climate over at Climate Skeptic.  I get accused of being "anti-science" all the time, I suppose for pursuing scientific evidence where it takes me rather than accepting the scientific "consensus" that I am told I should shut up and accept.

One response I often make to this accusation is the to compare the comment policy of leading skeptic and alarmist climate sites.  Which seem more "anti-science" to you?  Here is part of my blog's comment policy:

I have never tried to moderate my comments (except for spam, which is why you might have  a comment with embedded links held for moderation "” I am looking to filter people selling male enhancement products, not people who disagree with me.)  In fact, I relish buffoons who disagree with me when they make an ass of themselves - after all, as Napoleon said, never interrupt an enemy when he is making a mistake.  And besides, I think it makes a nice contrast with a number of leading climate alarmist sites that do not accept comments or are Stalinist in purging dissent from them.

Leading sites that are skeptical or at least are willing to ask questions of the climate orthodoxy like Watt's Up with That or Climate Audit have similar policies - their comment threads are full of people with strongly opposing opinions to the site's authors.

Now check out a comment policy from an alarmist site:

Climate "skepticism" is not a morally defensible position. The debate is over, and it's been over for quite some time, especially on this blog.

We will delete comments which deny the absolutely overwhelming scientific consensus on climate change, just as we would delete comments which questioned the reality of the Holocaust or the equal mental capacities and worth of human beings of different ethnic groups. Such "debates" are merely the morally indefensible trying to cover itself in the cloth of intellectual tolerance.

So, if you're a climate skeptic, you may be well-intentioned and you're certainly welcome to your opinion, but we're not interested.

The leading alarmist site, Real Climate, founded and run by people the media portrays as leaders in climate science, such as James Hansen, routinely purge all dissent from posts and comments.  For example, Anthony Watt wrote this after Steve McIntyre found huge problems in a recent version of a hockey stick temperature recontruction:

Realclimate.org continues deleting the ongoing river of comments posted on their threads ( Note: Any of you who find that your posts to those sites are being rejected {as usual without any explanation} can keep a copy of the post, and post it at http://rcrejects.wordpress.com if you want

I find that amazing -- someone is maintaining a blog populated with everything the "leading scientists" at Real Climate purge.  Check the stuff out there, this is not foul-mouthed mindless rants, but real scientific challenges that are being deleted.

One of the dirty secrets of climate science is that the so called "settled" science of global warming is often never challenged or replicated as we expect science should be.  When someone claims to have produced cold fusion, if they want their work to be accepted it is their obligation to publish their data and methodology for others to try to replicated.  In climate, this seldom happens.  Members of a small community all replicate and review each others' results, and claim this to be sufficient for "consensus."  When outsiders or mavericks attempt to test or replicate the results, they are stonewalled.

Here is my favorite quote to illustrate the whole mindset, and should make any reasonable person nervous who understands that Congress is on the verge of committing trillions of dollars of our money to certain courses of action based on the science.  It is from Phil Jones, who put together one of the first global temperature metrics at the Hadley Center, to Warwick Hughes, an Australian scientist who had some questions about the data and was having trouble replicating some of Jones' results.  Jones wrote, in response to Hughes request for data (data which underlies much of the early IPCC reports and so is the basis for a lot of public policy discussion):

"We have 25 years or so invested in the work. Why should I make the data available to you, when your aim is to try and find something wrong with it?"

UPDATE: Here is a great example of the way it should be done -- Steve McIntyre posts Keith Briffa's response in full, invites other responses:

In spite of suffering a serious illness (which I understand to be a kidney problem), Keith Briffa has taken the time to comment on the Yamal situation. The comment should be read by interested readers. If Briffa or any of his associates wishes to post a thread here without any editorial control on my part, they are welcome to do so.

The Observer Effect and Using Google for Social Science

I thought this was an interesting quick and dirty social study using Google. (via Knowledge Problem)

For any individual study you can validly say that you think the estimate is too low, or indeed, too high, and give reasons for that. For instance, you might say that your sample was mainly young people who tend to be healthier than the general public, or maybe that the diagnostic tools are known to miss some true cases.

But when we look at reporting as a whole, it almost always says the condition is likely to be much more common than the estimate.

For example, have a look at the results of this Google search:

"the true number may be higher" 20,300 hits

"the true number may be lower" 3 hits

I often tell folks that the key to understanding behavior is to understand incentives. The media as institutions have incentives to sensationalize and scare (it sells papers) and as individual reporters have incentives to magnify the importance of whatever story he or she is working on.

But what I found really interesting was how the Observer effect comes into play here.  Wikipedia has this brief definition of the observer effect:

In physics, the term observer effect refers to changes that the act of observation will make on the phenomenon being observed. This is often the result of instruments that, by necessity, alter the state of what they measure in some manner.

Click on the Google hit numbers above.  I get 42,700 and 5,360 respectively, the increase presumably due in part to this article and links to it.  Its impossible to report on patterns in Google searches without the very fact of such reporting affecting what is being measured.

Both Sad and Hilarious

Rick Trabino writes "How to Publish a Scientific Comment in 1 2 3 Easy Steps."  Not only hilarious, but it will make one despair for the future of science and academia, until one remembers that this kind of stuff has probably been happening since Euclid so somehow we make progress anyway.

Via Steve McIntyre, who has had similar problems of his own.  Particularly the parts where authors of studies published in journals refuse to share their data for replication, despite rules in the journals in which they publish which typically require such availability.

A Tribute to Norman Borlaug

Norman Borlaug, the founder and driving force behind the revolution in high-yield agriculture that Paul Ehrlich predicted was impossible, has died at the age of 98 95.  Like Radley Balko, I am struck by how uneventful his passing is likely to be in contrast to the homage paid to self-promoting seekers of power like Ted Kennedy who never accomplished a tiny fraction of what Borlaug achieved.  Reason has a good tribute here.  Some exceprts:

In the late 1960s, most experts were speaking of imminent global famines in which billions would perish. "The battle to feed all of humanity is over," biologist Paul Ehrlich famously wrote in his 1968 bestseller The Population Bomb. "In the 1970s and 1980s hundreds of millions of people will starve to death in spite of any crash programs embarked upon now." Ehrlich also said, "I have yet to meet anyone familiar with the situation who thinks India will be self-sufficient in food by 1971." He insisted that "India couldn't possibly feed two hundred million more people by 1980."

But Borlaug and his team were already engaged in the kind of crash program that Ehrlich declared wouldn't work. Their dwarf wheat varieties resisted a wide spectrum of plant pests and diseases and produced two to three times more grain than the traditional varieties. In 1965, they had begun a massive campaign to ship the miracle wheat to Pakistan and India and teach local farmers how to cultivate it properly. By 1968, when Ehrlich's book appeared, the U.S. Agency for International Development had already hailed Borlaug's achievement as a "Green Revolution."

In Pakistan, wheat yields rose from 4.6 million tons in 1965 to 8.4 million in 1970. In India, they rose from 12.3 million tons to 20 million. And the yields continue to increase. Last year, India harvested a record 73.5 million tons of wheat, up 11.5 percent from 1998. Since Ehrlich's dire predictions in 1968, India's population has more than doubled, its wheat production has more than tripled, and its economy has grown nine-fold. Soon after Borlaug's success with wheat, his colleagues at the Consultative Group on International Agricultural Research developed high-yield rice varieties that quickly spread the Green Revolution through most of Asia.

The contrast to Paul Ehrlich is particularly stunning.  Most folks have heard of Ehrlich and his prophesies of doom.   But Ehrlich has been wrong in his prophesies more times than anyone can count.  Borlaug fed a billion people while Ehrlich was making money and fame selling books saying that the billion couldn't be fed -- but few have even heard of Borlaug.   Today, leftists in power in the US and most European nations continue to reject Borlaug's approaches, and continue to revere Ehrlich (just this year, Obama chose a disciple of Ehrlich, John Holdren, as his Science czar).

Continuing proof that the world moves forward in spite of, rather than because of, governments.

Update: More here.

Update #2: Penn and Teller on Borlaug

230 MPG?

Update:  230 MPG turns out to be, as I suspected, total BS.  Make sure to check out update at bottom

Apparently under new methodology, the Chevy Volt got an MPG rating of 230.

we're told that the Volt has snagged a staggering 230 MPG rating in the city, but we should caution you that it's not as cut and dry as GM would have you believe. The EPA has released "a new methodology for determining a draft fuel economy standard for extended-range EVs like the Volt," and it's that murky measurement system that has blessed Chevy's wonder child with a triple digit MPG rating.

230-mpg-chevy-volt

Forget for the fact that the whole terminology is meaningless, as the vehicle only burns liquid fuel for a portion of its energy needs, so "miles per gallon" is an odd concept.  But one could imagine that one could look at the miles per electrical charge, and then look at the equivalent gallons of gasoline-equivalent BTU's it took to deliver that electricity, and create an equivalent MPG.  In fact, that's the only approach that makes any sense to me.

If so, these numbers imply that it is 10x more efficient to burn hydrocarbons in a large utility plant boiler or gas turbine, convert the combustion energy to electricity, transmit that electricity hundreds of miles, charge up a set of car batteries, and then drive an electric traction motor from the batteries than it is to burn hydrocarbons directly in an internal combustion engine in the vehicle.

If this is really the case, then I have been selling electric cars short and we will all soon be buying them (I prefer the performance of an electric engine so this kind of fuel savings is just icing on the cake).  However, I have my doubts.  While certainly a large power station is much more efficient in using all the BTU's in a fuel than is an internal combustion engine, when one considers losses in the electrical generation and line losses, I find it very very hard to believe the difference is 10x.

But I am sure there is no conflict of interest here, and that it is pure coincidence that GM is owned by the same people who created the new methodology and did the testing, and given that the new methodology was created by the same people who have been pushing electric cars as a policy alternative.

Update: The 230 MPG figure is even more BS than I thought.  Apparently, MPG while running on batteries is treated as infinite!  In other words, electricity is treated as "free" and not costing anthing in terms of fuel. Check out how the math is done

When gasoline is providing the power, the Volt might get as much as 50 mpg.

But that mpg figure would not take into account that the car has already gone 40 miles with no gas at all.

So let's say the car is driven 50 miles in a day. For the first 40 miles, no gas is used and during the last 10 miles, 0.2 gallons are used. That's the equivalent of 250 miles per gallon. But, if the driver continues on to 80 miles, total fuel economy would drop to about 100 mpg. And if the driver goes 300 miles, the fuel economy would be a just 62.5 mpg.

This is entirely consistent with the bizarre way electric cars have always been treated by environmentalists and politicians, as if the electricity is free and they have no  hydrocarbon use or CO2 production.  Which is weird, since we get harangued for our incandescent light bulbs destroying the world when we plug them in but plugging in a whole car does not?

That being said, if one really wanted to move away from hydrocarbon fuels, the smart approach is probably to go with electric cars and then attack electricity generation rather than transportation.  I will feel good plugging in my car because the juice will come from a big honking zero-emissions nuclear plant.

Paging Sarah Connor

Maybe I have watched too many movies, but it just does not seem like this will end well:

In its recently released "Unmanned Aircraft Systems Flight Plan 2009-2047" report, the US Air Force details a drone that could fly over a target and then make the decision whether or not to launch an attack, all without human intervention. The Air Force says that increasingly, humans will monitor situations, rather than be deciders or participants, and that "advances in AI will enable systems to make combat decisions and act within legal and policy constraints without necessarily requiring human input."

I will eschew some obvious Terminator clips and go a little old school

The original version of this scene actually did not make the theaters because it was too violent for the time.  If you want the full gore, .  The clip begins with the theatrical release, and then it replays the whole thing with the deleted bits.

Friday Funnies: Homeopathy

Sometimes one molecule of active ingredient diluted into the entire volume of the world's oceans still isn't enough of a pick-me-up on a Friday afternoon.  So I leave you with this, via John Stoessel:

Anyone want to bet that things like homeopathy will get included in the government's "must cover" rules under the new health proposal?

Spelling Errors and Evolution

I thought this Kenneth Chang column in the NY Times was pretty interesting.  Much like we can sometimes spot plagiarism by spotting where spelling errors have been reproduced, apparently errors in our DNA give clear pointers to our evolution from other species.

All my complaints about the NY Times not-withstanding, I think if the Times were to disappear, I would miss their science reporting the most.

Why is This Called "Green" Rather than "Theft"

From Greenlaunches.com (via Engadget) comes a technology that I have written about before to leech energy from cars to power buildings:

shoppers_car

Now when you shop, your can be responsible to power the supermarket tills. As in with the weight of your vehicles that run over the road plates the counter tills can be given power. How? Well, at the Sainsbury's store in Gloucester, kinetic plates which were embedded in the road are pushed down every time a vehicle passes over them. Due to this a pumping action is initiated through a series of hydraulic pipes that drive a generator. These plates can make up to 30kw of green energy in one hour which is enough to power the store's checkouts.

The phrase "there is no such thing as a free lunch" applies quite well in physics.  If the system is extracting energy from the movement of the plates, then something has to be putting at least as much energy into moving the plates.  That source of energy is obviously the car, and it does not come free.  The car must expend extra energy to roll over the plates, and this energy has to be at least as great (and due to losses, greater) than the energy the building is extracting from the plates.  Either the car has to expend energy to roll up onto an elevated plate to push it down, or else if the plates begin flush, then it has to expend energy to pull itself out of the small depression where it has pushed down the plate.

Yes, the are small, almost unmeasurable amounts of energy for the car, but that does not change the fact that this system produces energy by stealing or leeching it from cars.  It reminds me of the scheme in the movie "Office Space" when they were going to steal money by rounding all transactions down to the nearest cent and taking the fractional penny for themselves.  In millions of transactions, you steal a lot but no one transaction really notices.

I have seen this idea so many times now portrayed totally uncritically that I am almost beginning to doubt my sanity.  Either a) the media and particular green advocates have no real understanding of science or b) I am missing something.  In the latter case, commenters are free to correct me.

By the way, if I am right, then this technology is a net loss on the things environmentalists seem to care about.  For example, car engines are small and much less efficient at converting combustion to usable energy than a large power station.  This fact, plus the energy losses in the system, guarantee that installation of this technology increases rather than decreases CO2 production.

Postscript: One of the commenters on my last post on this topic included a link to this glowing article about a "green family" that got rid of their refrigerator:

About a year ago, though, she decided to "go big" in her effort to be more environmentally responsible, she said. After mulling the idea over for several weeks, she and her husband, Scott Young, did something many would find unthinkable: they unplugged their refrigerator. For good.

How did they do it?  Here was one of their approaches:

Ms. Muston now uses a small freezer in the basement in tandem with a cooler upstairs; the cooler is kept cold by two-liter soda bottles full of frozen water, which are rotated to the freezer when they melt. (The fridge, meanwhile, sits empty in the kitchen.)

LOL.  We are going to save energy from not having a refrigerator by increasing the load on our freezer.  Good plan.  Here is how another woman achieved the same end:

Ms. Barnes decided to use a cooler, which she refilled daily during the summer with ice that she brought home from an ice machine at her office.

Now that's going green!  Don't using electricity at home to cool your groceries, steal it from work!

Update: The one place one might get net energy recovery is in a location where cars have to be breaking anyway, say at a stop sign or on a downhill ramp of a garage.  The plates would be extracting speed/energy from the car, but the car is already shedding this energy via heat from its brakes.  Of course, this is no longer true as we get more hybrids with dynamic breaking, since the cars themselves are recovering some of the braking energy.  Also, I have never seen mention in any glowing article about this technology that placement is critical to having the technology make any sense, so my guess is that they are not being very careful.

I May Have Been Wrong When I Said Government Officials Weren't Dumb

I often say that most government officials are not dumb or evil, they just have bad incentives that make them act that way, and they look dumb because they attempt to tackle problems that even a 250IQ can't solve (e.g. planning the economy).

But I may have been wrong.  Evidence is mounting that people in Congress, at least, really are just plain dumb.  From an interview on NPR:

[Congressman Henry] Waxman: Well, there have been scientists brought together to see if they could figure out the science and make it clear whether this is a danger or not, whether it's a danger that's a great one or one that we can postpone for a while, and the overwhelming consensus of all the leading scientists that have looked at this issue is there is a warming of the planet, it's manmade, caused by our burning of carbon fuels, and it's happening faster than anybody ever thought it would happen.

We're seeing the reality of a lot of the North Pole starting to evaporate, and we could get to a tipping point. Because if it evaporates to a certain point - they have lanes now where ships can go that couldn't ever sail through before. And if it gets to a point where it evaporates too much, there's a lot of tundra that's being held down by that ice cap.

If that gets released we'll have more carbon emissions and methane gas in our atmosphere than we have now. We see a lot of destruction happening because of global warming, climate change problems, so we've got enough warning signals and enough of a scientific consensus to take this seriously.

Oh my heavens, we are certainly in good hands.  Via Tom Nelson.

Postscript: For those who slept through high school science:

  • North Pole ice melts, it does not evaporate (liquids evaporate).  Occasionally a solid will go straight from a solid to a gaseous state (e.g. with dry ice) - that is called sublimation.  Ice on Kilimanjaro, for example, sublimes rather than melts.
  • There have been a number of years this century, including several times in the 1930's, when the Northwest Passage opened up in the summer, so a recent opening was far from the "first time."
  • The ice cap does not hold down the tundra.  The concern, as I understand it, is that large stretches of Siberia are essentially permanently frozen peat bogs.   If the permafrost (which is under the tundra) melts, this allows the previously frozen organic matter to start to decompose, releasing methane which is a strong greenhouse gas.
  • When Waxman refers to a tipping point, he means that a positive feedback cycle, much like nuclear fission, is created causing temperatures to accelerate rapidly.  As an aside, such runaway positive feedback processes are rare among long-term stable natural systems, as at some point, given 5 billion years of history, they should have already run away by now.  Why temperatures would reach a tipping point now when they did not in millennia past when both global temperature and CO2 levels were much higher remains unexplained by Mr. Waxman and other tipping point advocates.
  • As of today, global sea ice extent is higher than the last 30 year average.  (this graph is updated regularly)

Scientists Can Be Morons Too

I was in the audience yesterday at Arizona State for something they called the Origins conference, which attracted a lot of top scientists to talk about issues related to the origins of life and the universe.  Towards the end there was a panel discussion that was less scientific, and more focused on "future of science" and "science and public policy" type issues.

What I observed in this discussion was amazing.  Folks who likely set very high standards of proof and rational thought in their own disciplines threw all such concerns out the window when talking on these public policy topics.  In fact, in the same sentence, I heard participants decry the rise of anti-scientific Luddites and then make wild, unsupported statements of their own that are laughably easy to disprove.

Here are some semi-random observations:

On Scientific Education: The panel went on and on about how schools are somehow failing to make science interesting and magical or whatever and are killing interest in science.  One woman who used to work with Carl Sagan said every kindergartner should be taken out to look at the stars and think about alien races.  While I am not one to defend schools too much, I do think that this gauzy view of education is a crock.  For some number of years, kids can be engaged with science and nature with gee-whiz demonstrations and participation events and spurring a general sense of wonder, and elementary school teachers who can do so should be treasured.

But at some point, discipline has to kick in.  To be good at physics, for example, requires a deep, deep knowledge of math.  It means hours and hours and hours of stultifying work learning to solve various forms of partial differential equations (just to choose one example near and dear to my heart).  Or, to choose another discipline, I just don't think that memorizing isomers in organic chemistry is ever going to be magical.   I believe this happy feel-good approach to science is in fact part of the problem.  Kids may get to age 13 thinking black holes are cool, but they are utterly unprepared for the work it is going to take to go to the next level of understanding.   I think this is in some sense why so many hard science PHD's are foreign -- their culture and early education is preparing them better for the hard stuff that requires discipline to master.

On Obama: The panel members all agreed that the change in US administrations meant an enormous turnaround in the future of science in the US.    Really?  I understand the problems with the Bush administration, but does anyone really think that the quality and quantity of scientific endeavor in its full scope across the country is going to measurably change because Obama has several Nobel laureates among his advisers?   It's like saying the Earth's rotation is going to measurably change if we all jump up and down at the same time.   How can people who analyze complex systems for a living throw out everything they know about such analysis when then look at the government and the economy?

On Economics: I swear one of the panel participants got up last night and said that the US economy is tanking because we have failed to make investments in science, while other countries who have made such investments are doing well.  That one sentence, from someone who is nominally a scientist, has four unsupported, and I think unsupportable, statements in one sentence:  1.  That the US has somehow refrained from investing in science, against some unidentified benchmark (the past?  the Platonic ideal?); 2.  That current economic problems stem from this lack of investment, rather than, say from the housing bubble and poor banking decisions; 3.  That other countries have made more investments in science than the US; and 4.  That these countries are prospering while our economy is in the tank (who??).  And everyone nodded their head at this.  No one challenged this.

On the Politicization of Science: The panel lamented the politicization of science, which they say is a phenomenon that has arisen solely over the last 10 years.  Ignoring this perversion of history, I was amazed at their solution.  For example, one member lamented the pushback in teaching of evolution in certain public schools.  Her solution, however, was for scientists to get even more political, ie to fight fire with fire.  That seems to miss the point.  I would have thought a better solution was to merely eliminate the politicization.  For example, taking government out of the business of setting curricula, e.g. by allowing school choice, would eliminate the role of government in choosing sides in science teaching issues altogether.  Why escalate the problem when we can eliminate it?

On the Profit Motive: The hostility to the profit motive was astonishing.  One guy on the panel had the temerity to mention that maybe changes in scientific output were driven by changing expectations of making money from such investment.  We then had to endure a 5-minute interlude where each member jumped in to assure the world that neither they or anyone they knew or anyone with any real credibility were driven by anything but a pure and idealistic desire to understand the universe.

Update: I have been reminded rightly that this panel does not necesarily represent the mass of the Origins effort, and in fact this panel was much more skewed to media and public policy.  This post is solely in reaction to this one panel, and the rest of the conference was great, dedicated mostly to hard science, and a real learning experience for me.

Norman Borlaug on Organic Farming

Reason asked Norman Borlaug about the claim that organic farming is better for the environment and human health and well-being.  His answer:

That's ridiculous. This shouldn't even be a debate. Even if you could use all the organic material that you have--the animal manures, the human waste, the plant residues--and get them back on the soil, you couldn't feed more than 4 billion people. In addition, if all agriculture were organic, you would have to increase cropland area dramatically, spreading out into marginal areas and cutting down millions of acres of forests.

At the present time, approximately 80 million tons of nitrogen nutrients are utilized each year. If you tried to produce this nitrogen organically, you would require an additional 5 or 6 billion head of cattle to supply the manure. How much wild land would you have to sacrifice just to produce the forage for these cows? There's a lot of nonsense going on here.

If people want to believe that the organic food has better nutritive value, it's up to them to make that foolish decision. But there's absolutely no research that shows that organic foods provide better nutrition. As far as plants are concerned, they can't tell whether that nitrate ion comes from artificial chemicals or from decomposed organic matter. If some consumers believe that it's better from the point of view of their health to have organic food, God bless them. Let them buy it. Let them pay a bit more. It's a free society. But don't tell the world that we can feed the present population without chemical fertilizer. That's when this misinformation becomes destructive...

I want to add a big "ditto" to this answer in reference to the whole food miles and locally grown food movement.  There is a lot of evidence that trying to get all of our food locally will actually increase energy use.  It will certainly harm the environment by increasing land use.

Why?  Because currently, economic incentives push farming of a particular food item towards the land that is best-suited and most productive for that item  (government subsidies, both direct, e.g. farm programs, and indirect, e.g. subsidized water for agriculture in arid areas like Arizona and SoCal, interfere with this, but that is a different subject).  The locally grown food movement seeks to shift crops from large productive farms located in the best soils and climates for that crop to smaller farms located in sub-optimal growing areas.  This HAS to increase agricultural land use, prices, and in many case, energy use.  More here.

Back to the 1970s

I have argued for a while that the US appears to be regressing back to the 1970s.  George Bush is showing every sign of rivaling Richard Nixon for the award for most heavy-handed, misguided economic interventions by a President nominally espousing free market principals.  And there is no reason to think that Obama's outsider appeal and leftish economics will clean things up any better than did Carter.

Another sign the 1970's are back is Obama's appointment of Paul Ehrlich buddy John Holdren as his Science Adviser.   The Reference Frame has more on his work and "credentials", but suffice it to say there is very little there.

He is a strong practitioner of what I call post-modern science, where being fact-based and rigorous is far, far less important than coming to politically correct conclusions that are wrapped in just enough pseudoscience to wow science-illiterate media and most of the public.  His only highly cited works are Club-of-Rome type stuff with Ehrlich in the 1970s, and, not surprisingly, climate alarmist work today.   He is the type of scientist that is more comfortable (and better received) on an Oprah episode than in a detailed science debate.  He has a tendency to declare issues settled without having ever produced any evidence, and a history of eventually backing down from ludicrous positions he adopted without evidence in earlier phases of his life, only to then make the exact same mistake again in a slightly modified form.

The title comes from perhaps his most famous work, and is a great example of exactly what this guy is about.  I=PAT is supposedly an equation to measure man's impact (generally interpreted to be negative impact) on the Earth.  The letters stand for Impact (or Influence) = Population x Affluence x Technology **

The fact that he has an "equation" makes it look like science.  But in fact, it is not an equation at all.  He never tries to put any numbers to it, and in fact one cannot put numbers to it.  It is merely a political point of view popular on the left - that growth and technology and wealth are all bad - made to look like there is some science behind it.   It gives the scientific impremateur to something that is no such thing, so limits-to-growth supporters could yell back at their critics that is was "settled science."  Its a kind of voodoo, where activists could wave Holdren and Ehrlich at their critics, to try to keep the fact-Gods at bay.  Similar forces are at work in climate, though climate scientists have learned not to put their equations on paper (since then churlish outsiders can criticize it) but to bury them in a black box climate model.

In fact, even as a concept I=PAT fails.   Because at least two of the three terms have exactly the opposite relationship.  What do I mean?  Well, I guess I could be convinced that, all things being equal, rising human population has a net negative impact on the environment.   But affluence and technology should be in the denominator, not the numerator.  I won't bother with an extensive proof, since Holdren never proves his equation, but I will offer up a couple of thought experiments:

  • Imagine 6-7 billion people on the earth today but with the wealth and technology of the pre-Jethro Tull 17th century.  It would be a freaking disaster.  The catastrophe, to humanity and the environment, would be unimageable.   We are able to have the P we have today only because it is offset by A and T.  Or, in a point made in an earlier post, poverty is not "sustainable."
  • America is demonstrably less polluted and cleaner than in 1970, despite a higher population.  Many areas are cleaner than in 1920, and we have more untouched land and more forest coverage today than we did in 1920.  Why?  Technology and affluence.

If one really wanted to be scientific about it, and studied actual data, I think he would find that environmental impact follows a parabola with development.  Initial increases in population and industrialization lead to messy problems, which are then fixed with increasing wealth and technology.  There are many places in the world where halting growth would merely freeze the country at the top of this parabola.  China is a great example.  China's environmental problems will get solved through increasing wealth.  Stopping it from growing would actually increase the negative impact on the environment.

Anyway, I just spent more time on the proposition than it deserves.  If Holdren ever steps down, I suppose there's always Rosie O'Donnell to replace him.

** This is based on the popular interpretation of the equation.  In fact, in its original form, T was not technology but just a plug factor, something like impact per population-dollar.  At this level, the equation is certainly true, as mathematically it is hard to argue against the equation impact = population x dollars x impact per population-dollar!  So, at some level, the finding was not wrong but simply trivial.  However, in popular mythology, T was changed to technology, and the authors really did nothing to correct this interpretation, because essentially they agreed with it, even if they hadn't proved it.  (more here)  This approach, of proving one thing that is trivial and then claiming the proof is of something broader and more robust is now typical of climate science.

So Lawrence Summers Was Fired For Being Correct?

So, apparently Lawrence Summers was correct:

Wall Street Journal -- Girls
and boys have roughly the same average scores on state math tests, but
boys more often excelled or failed, researchers reported. The fresh
research adds to the debate about gender difference in aptitude for
mathematics, including efforts to explain the relative scarcity of
women among professors of science, math and engineering.

The
latest study, in this week's journal Science, examined scores from
seven million students who took statewide mathematics tests from grades
two through 11 in 10 states between 2005 and 2007.
The
researchers, from the University of Wisconsin and the University of
California, Berkeley, didn't find a significant overall difference
between girls' and boys' scores. But the study also found that boys'
scores were more variable than those of girls. More boys scored
extremely well -- or extremely poorly -- than girls, who were more
likely to earn scores closer to the average for all students. The study found that boys are consistently more variable than girls, in every grade and in every state studied
(see crude diagram above - showing distributions where mean
intelligence is the same, but the standard deviation of male
intelligence is greater than female intelligence).

In Minnesota, for example, 1.85% of white boys in the 11th grade hit the 99th percentile, compared with 0.9% of girls -- meaning there were more than twice as many boys among the top scorers than girls.

Of course, Summers did not get in trouble for being incorrect.  He got in trouble for saying something he was not supposed to say.  And it seems that the media are trying to avoid the same mistake, reporting what they want to believe, and not what the study actually says.

As I write in a post at Climate Skeptic, this is part and parcel of a new post-modernist science, where (as MaxedOutMamma writes) "If a
research finding could harm a class of persons, the theory is that
scientists should change the way they talk about that finding".

From the Guy Who Really Deserved His Peace Prize

Last year, Al Gore won the Nobel Peace Prize for proposing world-wide government actions that will prevent a billion of more people form escaping poverty.  But, once upon a time, Norman Borlaug won a Peace Prize for actually helping the poor help themselves.  Here is what he is saying today.  Folks from the EU to Bono to Al Gore are standing in the way, again, of people feeding themselves by aggressively applying the technology we take for granted in America:

Yields can still be increased by 50-100% in much of the Indian sub-Continent,
Latin America, the former USSR and Eastern Europe, and by 100-200% in much of
sub-Saharan Africa, providing political stability is maintained, bureaucracies
that destroys entrepreneurial initiative are reigned in, and their researchers
and extension workers devote more energy to putting science and technology to
work at the farm level....

I now say that the world has the technology - either available or
well-advanced in the research pipeline - to feed a population of 10 billion
people. The more pertinent question today is whether farmers and ranchers will
be permitted to use this new technology. Extremists in the environmental
movement from the rich nations seem to be doing everything they can to stop
scientific progress in its tracks. Small, but vociferous and highly effective
and well-funded, anti-science and technology groups are slowing the application
of new technology, whether it be developed from biotechnology or more
conventional methods of agricultural science. I am particularly alarmed by those
who seek to deny small-scale farmers of the Third World -and especially those in
sub-Saharan Africa - access to the improved seeds, fertilizers, and crop
protection chemicals that have allowed the affluent nations the luxury of
plentiful and inexpensive foodstuffs which, in turn, has accelerated their
economic development.

Geothermal

I don't know much about geothermal power, but I do know I don't hear much talk about it of late.  Anthony Watt thinks this is a mistake, and discusses the potential.  To some extent, the problem with geothermal's acceptance is that it breaks our current centralized power model in favor of distributed power.  There are few spots where geothermal potential is large enough to run a big power plant, but apparently many where there is the ability to heat a single building.

Plasma Rain

A little astronomy pr0n for you today, a video clip of plasma rain on the surface of the sun, via Anthony Watts.

Phthalates and Cargo Cult Science

First it was breast implants, then thimerosal, and now it is phthalates.  Each have been attacked in turn by the junk-science / media / tort law complex.  Nobel Prize-winning chemist William Knowles wrote this week:

Lawmakers -- representing the concern of parents influenced by certain
environmentalists -- are calling for an outright ban of phthalates from
children's toys because of the misguided belief that by exposing
children to toys made with these chemicals we are putting their health
at risk.

Phthalates have a long history of attacks by environmental groups
dating back more than 30 years. Even then babies were of prime
consideration. Few chemicals have undergone such extensive testing and
survived as being safe. In fact, diisononyl phthalate, the most
commonly used phthalate in children's toys, has been subjected to more
than 200 tests....

Today, with no new scientific evidence, we are again challenging
phthalates as dangerous to babies and threatening to ban them. These
are products that have survived the toughest test of all, the test of
time. There is no evidence that babies or anyone else has ever been
harmed by them.

Eliminating phthalates from consumer products would be a true
challenge. Even more worrisome, however, is the notion that any
replacement would ever be able to pass the extreme scrutiny diisononyl
phthalate and other phthalates have.

There is nothing wrong with examining the products our children
come into contact with to be sure they pose no health risks. However,
in this case, it would be a great mistake to ban what has been proven
to be a benign product without some further scientific evidence.

While We Are On The Subject of Oil...

Glen Reynolds brings us this:

A provision in the US Carbon Neutral Government Act incorporated
into the Energy Independence and Security Act of 2007 act effectively
bars the US government from buying fuels that have greater life-cycle
emissions than fuels produced from conventional petroleum sources.

The United States has defined Alberta oilsands as unconventional
because the bitumen mined from the ground requires upgrading and
refining as opposed to the traditional crude pumped from oil wells.

California Democrat Representative Henry Waxman, chairman of the
House Committee on Oversight and Government Reform and Republican Tom
Davis added the clause.

Uh, right.  Since we all burn pure unrefined crude oil pumped right from the oil well in our car. 

Here is what a traditional crude oil goes through before it becomes gasoline:

  • Water and salt must be removed
  • The oil is heated up to over 700 degrees, and is separated into its fractions via distillation.  Oil is made up of hydrocarbon chains of many lengths, from short ones (methane, ethane, propane) to very long ones (asphalt, heavy motor oils).  Gasoline is somewhere in between.
  • Each fraction generally has to be de-sulfurized.  This generally occurs by injecting hydrogen into the fraction across a catalyst bed to remove the sulfur as Hydrogen Sulfide, a dangerous gas that must be further processed to produce pure sulfur.
  • The gasoline fractions in a typical oil are nowhere near large enough for the relative demand.  So additional steps must be taken to produce gasoline:
    • Very heavy fractions have their molecules cracked at high temperatures, either in cokers, high temperature crackers or in fluid catalyst bed crackers.  These processes either remove carbon in its pure form or remove it by combining it with hydrogen
    • Certain fractions are reformed in combination with hyrdrogen, sometimes across a platinum catalyst, to produce molecules with better properties for gasoline, including higher octane.
    • All over a refinery, there are small units that take individual fractions that use a variety of processes to create specific molecules that have useful properties
  • All of these different fractions and products are blended in various proportions to make different grades of gasoline.  These blends and proportions can change from city to city (to meet environmental regulations, Phoenix must have a gasoline blend that is unique in the US) and must change season to season (gas that burns well in winter will vapor lock in the summer time).

I am sure I left tons of steps out, but you get the idea.  Below are my old digs at Exxon's Baytown Texas Refinery, where I worked as an engineer for 3 years out of college:

Baytown2  Baytown_2

The Wussification of America

From the Arizona Republic, presented without comment:

Phoenix fire vehicles, including some hazardous-materials units,
responded to a small mercury spill at Mountain Pointe High School
Tuesday afternoon. No one "complained of medical problems" or was
transported to a hospital, said Mark Faulkner, Phoenix Fire Department
division chief for the public affairs.

At about 1:30 p.m. a call came to the Fire Department about a
"dime-size spill of mercury" on the campus at 4201 E. Knox Road in
Ahwatukee Foothills, Faulkner said.

The mercury was in a science laboratory but how it spilled is unknown.
It could have been part of an experiment or possibly a thermometer
cracked, Faulkner said.

Arthur C. Clarke Was Wrong, So Progress Must Have Stopped

Neo-Erlichism from Paul Krugman:

Much of what I did back then was look for estimates of the cost of
alternative energy sources, which played a big role in Nordhaus's big paper that
year. (Readers with access to JSTOR might want to look at the
acknowledgments on the first page.) And the estimates "” mainly from
Bureau of Mines publications "” were optimistic. Shale oil, coal
gasification, and eventually the breeder reactor would satisfy our
energy needs at not-too-high prices when the conventional oil ran out.

None of it happened. OK, Athabasca tar sands have finally become a
significant oil source, but even there it's much more expensive "” and
environmentally destructive "” than anyone seemed to envision in the
early 70s.

You might say that this is my answer to those who cheerfully assert
that human ingenuity and technological progress will solve all our
problems. For the last 35 years, progress on energy technologies has
consistently fallen below expectations.

I'd actually suggest that this is true not just for energy but for
our ability to manipulate the physical world in general: 2001 didn't
look much like 2001,
and in general material life has been relatively static. (How do the
changes in the way we live between 1958 and 2008 compare with the
changes between 1908 and 1958? I think the answer is obvious.)

My goodness, its hard to know where to start.  Forgive me if I do not remain well-organized in this post, but there is so much wrong here it is hard to know where to start.

A forecast is not reality

First and foremost, the fact that forecasters, whether they be economists or science fiction writers, are wrong on their forecasts does not say anything about the world they are trying to model -- it merely says that the forecasters were wrong.  The fact that the the Canadian will be wrong in its prediction that 4.5 billion people will die by 2012 due to global warming does not mean that the physical world will somehow have changed, it means that the people at the Canadian are idiots.  The fact that an ice shelf in Antarctica collapsed earlier than one forecaster expected does not mean global warming is accelerating, it means the forecaster was wrong.

In fact, I can play this kind of game in exactly the opposite way in the energy field.  I can point out that economists like Krugman predicted that we were going to be out of oil (and food, etc) by 1980, then by 1985, and later by 1990, and by 2000, and by... now.  Does the fact of their continuing forecast errors on oil supply and demand tell us anything meaningful about oil markets, or does it tell us something about economists?  He practically begs for this counter-example by titling his article "limits to growth..." which hearkens back to the horribly wrong sky-is-falling forecasts in the 1970s by the likes of the Club of Rome and Paul Ehrlich. 

Advances in Energy

But his key statement is that progress on alternative energy technologies has consistently fallen below expectations?  Whose expectations?  Certainly not mine, or those of the knowledgeable energy industry insiders, who have been consistently pessimistic about most of these alternatives over the last decade or two.   Perhaps they have fallen below Krugman's or Greenpeace's expectations, but so what?

At this point, though it is embarrassing to have to point this out to a man who once was a real economist rather than a political hack, I must remind Mr. Krugman that since we are talking about substitutes for oil, then perhaps oil prices might have something to do with this "lack of progress."  Because, while we may tend to forget the fact over the last few years, for 20 of the last 25 years oil prices have been, on a real basis, near all-time lows.  They languished for decades at $20 or less, a price level that made the economics of substitutes impossible.  Nobody is going to put real money into substitutes when oil is at $16 or so.  Exxon, for example, had huge money invested in LaBarge, WY oil shale in the late 70's until decades of middling oil prices in the eighties and nineties forced them to pull the plug.  Ditto everyone and everything else, from shale oil to coal gasification.  And I can't even believe any sentient adult who lived through this period actually needs it pointed out to him that maybe there are non-technical reasons breeder nuclear reactors have not advanced much, like say the virtual shutdown of the nuclear business by environmentalists and local governments.

I will myself confess to being a bit surprised that solar efficiencies have not advanced very much, but again I remind myself that until the last few years, there was virtually no economic justification for working much with the technology. 

But all this masks another fact:  One of the reasons that these technologies have not advanced much is due to the absolutely staggering advances in oil exploration and production technology.  The last 35 years has seen a revolution, from computer reservoir modeling to horizontal drilling to ultra deep sea oil production to CO2 floods, it is in many ways a totally new industry.

Here is the way to decode what Mr. Krugman is saying:  It is not that the energy industry is not making huge technology gains, but that it is making gains in areas that Mr. Krugman did not expect, and, even more likely, it is not making its gains in the areas that Mr. Krugman wanted them to be.

Other technological advances

But Mr. Krugman did not stop there.  He could not resist throwing out a bit more red meat when he posits that all of our advances over the last 50 years in manipulating the material world have been disappointing.  Really?  Again, by what metric?  The revolution in computing alone has been staggering, and I feel like I could just say "Moore's Law" and leave my rebuttal at that.  Kevin Drum, oddly, suggests that Krugman means to say "besides computers" by using the "manipulate the physical world" wording.  If so, that is pretty hilarious.  Saying that "when you leave out computing and semiconductors, we haven't done much with technology over the last 50 years" is roughly equivalent to saying "leaving out the energy revolution and the application of steam power, there was not much progress in the early industrial revolution."   It's a stupid, meaningless distinction.  I am sure he would include a "car" in his definition of manipulating the physical world, but then how would you explain all those semiconductors under the hood?

But, that being said, I will take up the challenge.  Here are a number of technological revolutions besides computing and semiconductors over the last 50 years that clearly outstrip the previous 50:

  • Cost / Affordability Revolution.  One can argue that many of the technologies we enjoy today existed, at least in primitive form, in 1958.  But the vast majority of these items, from television to automobiles to air conditioning to long distance travel were playthings for the rich.  Over the last 50 years, we have found a way to revolutionize the cost and availability of all these items, such that most are available to everyone  (more on this below)
  • Reliability revolution.  In 1958, and even in 1968 and to a lesser extent in 1978, it was critical to have an address book full of good repair people.  Cars, televisions, home appliances, radios, air conditioners -- all were horrendously unreliable.  They could fail on you at any time, leaving you in an awkward or even dangerous spot, and repairs were common and expensive.  When I was a kid, we used to have a guy in our house at least twice a year fixing the TV -- when was the last time you saw a TV repair man?  I would argue that reliability (and this applies to industrial products as well) barely budged from 1908 to 1958, but has improved exponentially in the last 30-40 years.
  • Environmental and efficiency Revolution.  This one is no contest.  The environmental improvement -- in air quality, in water quality, in litter, in just about every category -- has shown substantially more improvement since 1958 than it did in the first half of the century.  This one is no contest
  • Safety revolution.  While there are ways in which this has gone too far, there is no denying that a huge amount of engineering over the last 50 years has gone into making products and services safer to use and operate.  And by the way, on the topic of flying cars (everyone likes to lament, "where is my flying car") could one not imagine that one reason we don't have flying cars is that anyone who is smart enough to design one is smart enough to know the government is never going to let people fly around willy-nilly, so maybe there is no mass market for them worth the investment and time?
  • Bio-medical revolution.  In less than 20 years from the time the world really recognized and understood the AIDS virus, science had a fairly good treatment for it.  And people complained it took too long!  Think of it -- a new, totally foreign virus that is extremely deadly appears nearly out of nowhere, and science cracks it in 2 decades.  No such ability existed before 1958.
  • Communications and Entertainment revolution.  1958:  Three US TV networks.  2008: 300 million people with the ability to broadcast their thoughts, their movies, their works of art to the world.  'nuff said.

In many ways, all of these thoughts come together if we look at a car.  Its easy to say that cars have not changed much - no wings yet!  But in fact, a car mechanic from 1909 would have a fighting chance to work on a 1958 engine.   No way a 1958 mechanic could make much progress with a 2008 internal combustion engine, much less a hybrid.  A car in 1958 was nearly as unsafe, and unreliable, and inefficient, and polluting, as a car in 1908.  Today, all of these have improved by orders of magnitude.  In addition, our cars have air conditioning and leather seats and hard-top convertible roofs and satellite radios and DVD players for the kids.  And mostly, the don't rattle like they used to after 6000 miles.

Material Life

But Krugman is still not done throwing out red meat, as he concludes that material life has not improved much over the last 50 years, and the answer is "obvious", to him at least, as to whether it has improved more in the last 50 years or the previous 50 years. 

Well, first I would observe that one should probably not trust people in data-based professions like economics who say that the answers to complicated questions are obvious without feeling the need to put any facts on the table.  By so positing, he looks extraordinarily lazy compared to folks like Steven Levitt who are out there trying to quantify the seemingly unquantifiable.

But the question is not at all obvious to me.  I suppose one could argue that the very rich have not seen much change in their material condition.  In 1958 they could jet around the world and had televisions and air conditioning and could afford the costs of unreliable products  (it does not matter so much if your car breaks down a lot if you can afford to have five or six cars).

But is strikes me that the material condition of the poor and middle class have improved markedly over the last 50 years.  As I mentioned before, there has been a revolution in the price and availability of what used to be luxury items:

The following are facts about persons defined as "poor" by the Census Bureau, taken from various gov­ernment reports:

  • Forty-three
    percent of all poor households actu­ally own their own homes. The
    average home owned by persons classified as poor by the Census Bureau
    is a three-bedroom house with one-and-a-half baths, a garage, and a
    porch or patio.

  • Eighty percent of poor households
    have air conditioning. By contrast, in 1970, only 36 percent of the
    entire U.S. population enjoyed air conditioning.

  • Only 6 percent of poor households are over­crowded. More than two-thirds have more than two rooms per person.
  • The
    average poor American has more living space than the average individual
    living in Paris, London, Vienna, Athens, and other cities throughout
    Europe. (These comparisons are to the average citizens in foreign countries, not to those classified as poor.)

  • Nearly three-quarters of poor households own a car; 31 percent own two or more cars.
  • Ninety-seven percent of poor households have a color television; over half own two or more color televisions.
  • Seventy-eight percent have a VCR or DVD player; 62 percent have cable or satellite TV reception.
  • Eighty-nine percent own microwave ovens, more than half have a stereo, and more than a third have an automatic dishwasher.

What has not improved

To bring us back full circle, the one thing I would argue that definitely has not improved much is forecasting and modeling.  It appears from Krugman in this article (and form global warming modelers)  that orders of magnitude increases in computing power have improved neither the hubris of the modelers nor the quality of their forecasts.  I am sure I could as easily find someone in 1958, or even 1908, out there crying "My forecast is fine - its reality that's broken!"

OK, I am spent.  I am sure there is more that could be said on this, but I will leave the rest to you guys.

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!

Solar Cells in Sheets From Dalton, Georgia

Every 2-3 years I do the math on solar cells for my home.  I live in a house with a large flat roof and in one of the top 10 cities in the world for solar potential, so it seems to make sense in theory.  Unfortunately, even with large government / power company subsidies, the math never works as an investment.

The problem for me is not efficiency - I have enough flat space on my roof for a lot of cells - but cost.  We need a solar technology that can be rolled out of the factory like carpet from Dalton, Georgia.  To this end, this looks promising.