Saturday, July 26, 2008

Aniline Dyes- Unintended Consequences Extraordinaire

Jack Dini
Livermore, CA

(From a series on unintended consequences)

Aniline dyes are perhaps some of the best examples showing how many divergent paths can lead to unintended consequences. Painting a wooden fence with coal tar to keep dogs from a yard led to what was the first of a multitude of unexpected discoveries. In another case, instead of finding quinine, one researcher essentially founded the synthetic dye industry. Another dye, indigo, was synthesized because a thermometer broke and the spilled mercury catalyzed a reaction that caused collapse of the Indian indigo industry. (1) In another example, some dye accidentally spilled on a bacteria culture dish led to the new science of bacteriology. (2) Noting that some dyes killed certain parasites, one scientist developed the concept of chemotherapy. (3) Work on distilling fractions of coal tar also led to the discovery of carbolic acid, used first in antisepsis by surgeons like Lister in Edinburgh, who developed methods of spraying the liquid. (2) The study of dyes also helped launch the “French Impressionist” painting movement.

One could also argue the case that dyes were responsible for Germany developing into a power that could dominate World War I. By the time the war came along, some leading German companies had made such profits from the dye industry that they were able to branch out into pharmaceuticals and explosives. (4) In the United States prior to World War I, job opportunities for chemists were extremely limited since dyes and drugs were imported from Germany. As a result, the typical American research chemist, among the lower paid professions in the country, studied soils for the US Department of Agriculture. (5)

James Burke sums all this up well, “Aniline dyes are a particularly good example of the interactive and unforseen way scientific and technological discovery is triggered.” (2) In this essay we’ll concentrate on the early beginnings of the synthetic dye industry; some others dye-related activities are covered in subsequent articles. First, an answer to the question—what are aniline dyes? They are artificial dyes derived from coal tar, which was the messy residue left after lighting gas from coal or after obtaining coke (for iron making) from coal. Since there was so much of the stuff around, folks were trying to find uses for it. Most likely, the earliest event came when Friedlieb Ferdinand Runge (1794-1867) tried to keep the neighborhood dogs out of his garden. He erected a wooden fence which he painted with coal tar (creosote) as a preservative. As an added inducement to keep the dogs from lifting their legs against his fence he scattered calcium hypochlorite all around to present a chlorine odor. When he inspected the fence the next day there were blue streaks on the white powder, obviously from the trajectories from dog urine jets. Runge discovered that the blue color was the result of oxidation of the hypochlorite by some constituent of the coal tar. He called the blue substance Kymol. Years later, Professor August Wilhelm Hofmann showed that the parent compound in the coal tar was aminobenzene, or aniline, and Kymol was the first synthetic prototype of a dye. (1)

However, the really pioneering event in this field is attributed to William Henry Perkin (1838-1907), a student at the royal College of Chemistry in London. At age seventeen he was trying to derive quinine from coal tar chemicals. The reason for this was that many English in the tropics were dying from malaria and the curative, quinine, wasn’t available in England’s colonies. (2) Perkin’s professor, August Wilhelm Hofmann, a German chemist who came to London at the personal invitation of Queen Victoria (the same Hoffmann mentioned above when discussing Runge), suspected that perhaps quinine could be derived form coal tar. (6)

An ambitious sort, Perkin had his own laboratory at home. During an Easter, break he mixed some aniline with potassium bichromate and ended up with a messy substance. Perkin noted, however, that this material had a purple tinge. He added alcohol to this concoction and a beautiful purple color appeared. It was a synthetic dye. He called it Tyrain purple, later it was called mauve. He realized that this would be a good dye for textiles. (7)

Perkin patented his process for the preparation of the dye and financed by his father, started a dye factory near London. This was the beginning of the synthetic dye industry. It was monumental in that it rescued the poor and middle classes from the age old austerity of hues. For the first time in history, inexpensive dyes became available and people, other than the rich, no longer had to live their lives in untreated drab and dingy fibers. (8) Although the new industry had started in Britain, it operated mainly in Germany up to World War I.

But Perkin did more than just find a synthetic dye. He essentially was responsible for a new way of doing scientific research. Sharon Bertsch McGrayne notes, “Perkin’s mauve spawned the world’s dye and pharmaceutical industries. His synthetic dye was the first in a cascade of colors that institutionalized scientific research, professionalized chemists, changed the economies of vast regions, and helped make turn of the century Germany the world’s leading industrial power. Perkin was an adolescent college dropout, but his work dramatized the technological power of science and ushered in our uniquely science-oriented epoch. The discovery of mauve by Perkin has been credited with starting the tremendous development of organic chemistry in the latter half of the nineteenth century, especially in Germany. With the possible exception of Apple creators Steven Jobs and Steven Wozniak, college dropouts who developed the first ready-made computer in their teens and twenties, it is difficult to imagine a young person’s invention that has started such an enormous revolution.” (9)

There’s more as James Burke notes, “German expertise with color lead to discoveries in apparently unrelated fields, such as that of medicine: the investigation of the chemistry of color led to systematic thinking about the structure and effects of chemicals, and this led directly to drugs like aspirin and to techniques for staining tissue for diagnosis. It was this use of tissue staining to identify potential sufferers from syphilis that led to the disease being treated successfully with the stain chemical itself. The new drug was called Salvarsan.” (10)

While on the subject of color, here’s one last item of note. French chemist M. E. Chevreul, working with dyes, invented an extraordinary new color tool. By taking the three primary colors, red, blue and green and interspersing them with twenty-three color mixtures, he got a chromatic circle of seventy-two colors, his ‘law of simultaneous contrast.’ Then he toned each color by adding a black or white, thereby creating 15,000, the tone-chromatic circle used by all dyers ever since. (11) In addition, as Burke also points out, “Chevreuls’s placement of color for effect did much more then help the textile industry. It also changed the world of art by triggering the French ‘scientific’ impressionist movement. Painters like Seurat, Signac, and Pissaro used Chevreul’s new law of contrast in their work. They placed spots of different colors next to each other to create the impression of a third color, and in doing so achieved the distinctive shimmering effect for which impressionism is famous. (11)

So Perkin, in looking for a cure for quinine, started us down the road to many and varied unintended consequences. And concluding with Perkin, by the age of twenty-three he was rich and famous and by age 35, already a millionaire, he left manufacturing to return to the scientific research he had loved in his youth. In his private laboratory he synthesized coumarin, the first perfume from coal tar, and prepared cinnamic acid by a method so generally useful that it became known as the Perkin reaction. (12)

References
1.Walter Gratzer, Eurekas and Euphorias, (Oxford, Oxford University Press, 2002), 45

2.James Burke and Robert Ornstein, Axemaker’s Gift, (New York, G. P. Putnam’s Son’s, 1995), 197

3.James Burke, The Pinball Effect, (New York, Little, Brown and Company, 1996), 155

4.Stephen Van Dulken, Inventing The 19th Century, (Washington Square, New York, New York University Press, 2000), 188

5.Sharon Bertsch McGrayne, Prometheans in the Lab, (New York, McGraw-Hill, 2001), 111

6.Sharon Bertsch MeGrayne, Prometheans in the Lab, 15

7.Alexander Kohn, Fortune or Failure, (Cambridge, MA, Basil Blackwell, 1989), 46

8.Sharon Bertsch McGrayne, Prometheans in the Lab, 9

9.Sharon Bertsch McGrayne, Prometheans in the Lab, 10

10.James Burke, Connections, (Boston, Little, Brown and Company, 1978), 204

11.James Burke, The Pinball Effect, 93

12.Royston M. Roberts, Serendipity, (New York, John Wiley & Sons, 1989), 70

Pesticides and Fear

Jack Dini
Livermore, CA

“Pesticides have one indisputable effect: they cause emotions to boil over. That’s just what happened when a group of golfers noticed that a chemical sprayer was out on the course as they were completing their round. By the time they got into the clubhouse, several were complaining of headaches, rashes, and general malaise and angrily approached the superintendent to protest what they believed was an irresponsible activity. The golfers linked their symptoms with the chemicals being sprayed on the grounds because they were convinced that the use of pesticides is inherently unsafe.” Joe Schwarcz asks, were they right? (1)

If you believe the health and environmental claims devised by scaremongers you could understand the golfers’ reactions. As Terence Corcoran of Canada notes, “It’s easy to generate a junk science scare. You make stuff up, exaggerate the risks, politicize the subject and spin it into a corporate and ideological battle. And, above all, you ignore the facts. For more than a decades the likes of Greenpeace, the Ontario College of Family Physicians, The Globe and Mail and scores of activists and city politicians have waged a relentless campaign against pesticide use. (2)

Here’s one example. The Audubon Magazine showed a large colored picture of a belching smokestack and reported the following: “Pesticides have become more toxic and their use more widespread. Since 1945 global use of pesticides has risen 50-fold. In the US, more than 220,000 people die each year as a result of pesticide exposure.” (3)

Wow! That’s half as many as the number of deaths from automobile accidents each year. Is there something wrong with this picture? You bet. In the following Audubon issue, a correction was made in an obscure spot not highlighted with a belching smokestack: “In ‘Death by Breath,’ we reported that 220,000 people in the United States die each year as a result of pesticide exposure. In fact, the figure is a worldwide estimate.”

With further digging one finds that more than 90 percent of these deaths are suicides, but this wasn’t reported by Audubon. Joe Schwarcz observes, “Believe it or not, about a million people in the world do away with themselves every year. More than three-quarters of these are in Third World countries, where life can be so miserable that the alternative seems more attractive.” (4) So, yes pesticides can kill, but not at the levels approved for routine usage.

By the way, just what was that dastardly chemical being sprayed on the golf course, the one that caused such severe reactions in the golfers? Good old water! “Fear itself can sometimes be hazardous,” notes Schwarcz. (1)

Now, here’s a story on pesticides that wasn’t picked up by the media. On May 16, 2008Health Canada’s Pest Management Regulatory Agency (PEMA) released its final re-evaluation of 2,4-D, the leading pesticide in use in Canada. It was one of the most comprehensive science reviews in Canadian history, carried out exclusively by Health Canada scientists. The conclusion; 2,4-D is safe when used as directed. The decision on 2,4-D was consistent with that of regulators in other Organization for Economic Co-operation and Development countries, including the United States, New Zealand and countries of the European Union, as well as the World Health Organization. (5)

Terence Corcoran notes, “No major media—not one—picked up the story, even though it systematically demolished every health and environmental claim the scaremongers had dumped onto a gullible community of journalists. Almost two weeks later, the Ottawa Citizen’s Dan Gardner wrote a column on how the media missed the story. Still no reaction.” Think of how the reaction would have been if Health Canada had concluded that 2,4-D was harmful. The media and environmentalists would have had a field day. Corcoran adds, “The limited fallout from Mr. Gardner’s report is instructive. A Global News reporter picked it up and raised the Health Canada report with officials in Toronto. Health Canada’s conclusions were dismissed by a city council member, and the views of an activist with the Toronto Environmental Alliance were repeated; ‘Many studies have linked 2,4-D to some serious health concerns such as cancer reproductive developments in our children and even birth defects.’ One of the most comprehensive scientific reviews in Canadian history, carried out exclusively by Health Canada scientists and reviewed by independent government and university researchers trashed in 30 seconds by an activist repeating claims rejected by the review. All that work and the last media report ends with repetition of the junk science Health Canada had spent millions disproving.” (2)

In commenting on why the Health Canada report wasn’t taken up by the media, Dan Gardner states that this is a typical reaction. He notes, “The media routinely gives prominent play to research that comes to very scary conclusions while downplaying or ignoring studies that find there’s nothing to worry about. It’s frightening to watch a major debate involving a scientific question move from stories in newspapers to politicians’ speeches to legislative action—all with little or no connection to the best science as interpreted by the best scientists.” (6)

In another column Garner reported, “Some folks objected to the reports conclusion that 2,4-D is safe ‘when used as directed.’ People may misuse it, they said, and then it would be harmful. That potential is reason enough to ban it. This ignores two things. First, literally any substance is potentially harmful. Oxygen can, in some circumstances, cause blindness. Drink too much water and the body’s sodium and potassium levels will be thrown off, leading to seizures, coma and even death. And don’t get me started on what coffee can do the human body.” He adds, “Of course, we have to drink huge quantities of water to be harmed by it so water is quite safe. Obviously, pesticides—and lots of other substances—are not so safe. But what most people don’t realize is that regulators build a wide safety margin into their standards. In the case of pesticides, the potential level of exposure can be no more than 1/100 of the dose that showed no effect in animals.” (7)

A final note on pesticides. If you worry about these types of things, this will really set you off. We get much more natural pesticides than synthetic pesticides in our diet. Bruce Ames and his colleagues at the University of California, Berkeley, report that about 99.99 percent of all pesticides in the human diet are natural pesticides from plants. All plants produce toxins to protect themselves against fungi, insects and animal predators, such as man. Tens of thousands of these natural pesticides have been discovered, and every species of plant contains its own set of different toxins, usually a few dozen. When plants are stressed or damaged (such as during a pest attack), they increase their levels of natural pesticides manifold, occasionally to levels that are acutely toxic to humans. Ames estimates that Americans eat about 1,500 mg per person per day of natural pesticides, which is 10,000 times more than we eat of synthetic pesticides. He also estimates that a person ingests annually about 5,000 to 10,000 different natural pesticides and their breakdown products. (8)

References

1.Joe Schwarcz, The Fly in the Ointment, (Toronto, Canada, ECW Press, 2004), 39
2.Terence Corcoran, “The pesticide report that nobody read,” nationalpost.com, June 16, 2008
3.Gretel H. Schueller, “Death by Breath,” Audubon Magazine, 101, 16, January-February 1999
4.Joe Schwarcz, Let Them Eat Flax, (Toronto, Canada, ECW Press, 2005), 80
5.“Health Canada Releases Final Re-evaluation Decision on 2,4-D,” Pest Management Regulatory Agency Information Note, May 16, 2008
6.Dan Gardner, “On Pesticides, Science and Fear,” The Ottawa Citizen, May 28, 2008
7.Dan Gardner, “The Science of Uncertainty,” The Ottawa Citizen, June 7, 2008
8.B. N. Ames and L. S. Gold, “Paracelsus to parascience: the environmental cancer distraction,” Mutation Research, 447, 3, 2000

Sunday, June 22, 2008

Acetylene- Champion of Unintended Consequences

Jack Dini
Livermore, California

(From a series on Unintended Consequences)

Acetylene could perhaps take the prize for how knowledge, intuitiveness, serendipity, and a mix of unintended consequences all came together in various parts of the world at different times to produce a variety of unexpected materials. In 1892, Canadian researchers Thomas Willson and James Morehead, attempted to produce aluminum in an electric furnace. They started with a mixture of coal tar and lime reasoning that the lime would be converted to calcium which, in turn, would strip the oxide away from aluminum oxide leaving pure aluminum. Upon opening the furnace they saw a dark residue, not the shiny aluminum they were expecting. When the mixture was thrown into a stream near their lab (this was long before the days of environmental concerns and regulations), bubbles formed and a plume of water shot into the air. They had discovered calcium carbide and acetylene. (1) On the other side of the world, Henri Moissan, a Frenchman trying to make artificial diamonds also discovered calcium carbide and acetylene. (2) But these scientists weren’t the first in this area of invention. Friedrich Wohler, a professor of chemistry at the University of Gottingen, had made calcium carbide around 1862 by heating calcium with charcoal to a high temperature. He observed that it formed acetylene when it reacted with water. However, his method of making the materials wasn’t efficient, so the discovery lay dormant until the 1890s, the era of the gaslight. (1) When it was realized that acetylene burned with a far more brilliant flame than kerosene, and efficient ways of making carbide were available, a vast new market opened up. As Joe Schwarcz reports, “By 1895 Thomas Willson had founded the company that eventually became Union Carbide, one of the biggest chemical companies in the world. Soon consumers were able to purchase lamps based on calcium carbide, clever devices in which water dripped into a container of carbide and generated acetylene gas. This gas, in turn, flowed to a nozzle where it could be ignited. A mirrored surface behind the flame increased the intensity of the light.” (3)

Then Thomas Edison came along with his electric light and the bottom dropped out of the acetylene market. Enter Fritz Klatte, working in Stuttgart at Greisham Electron. He was trying to find a material for weatherproofing aircraft wings. Working with a mixture of acetylene, hydrogen chloride, and mercury, he was unsuccessful, and set the mixture on a sunny window sill. Later he noticed that it formed a milky sludge which eventually turned solid. He convinced his firm to file a patent on the mixture and they did, but nothing was done to commercialize the discovery. In 1925 the patent lapsed. (4) It should also be noted, that as with acetylene, PVC had originally been discovered long before Klatte came along. French physicist Henri Victor Regnault was the original discoverer in 1835 but nothing was done with the product.

Back to Klatte. A year after his patent expired (1926), an American chemist, Waldo Semon, working at B. F. Goodrich, independently reinvented PVC. He envisioned that this material would make a perfect shower curtain so he and his colleagues at Goodrich patented the process (Klatte’s team apparently never filed for a patent outside Germany). It turns out PVC was much more than shower curtain material. It became the forerunner of many plastics without which modern industrialized nations could no longer function. (5)

These days PVC is everywhere. It’s one of the most widely used plastics in the world. It is also the cheapest and probably the most versatile plastic. Some uses include pipe and pipe fittings (the largest scale use), floppy computer discs, garden hose, building sidings, wire and cable insulation, food packaging, automobile seat covers, shower curtains, and many other household uses. (6)

Other Uses For Acetylene

In 1895, the same year Willson established his company, French chemist Henry-Louis Chatelier, discovered that when acetylene was burned with an equal volume of oxygen, a flame with a temperature over 3000 C was obtained. This temperature, high enough to melt steel, was much higher than achievable with any other gas and introduced the concept of welding. Oxyacetylene welding was a boon to the construction industry and is widely used today.

Joe Schwarcz adds, “About half of all acetylene produced today goes towards the production of other organic chemicals. Adding hydrogen cyanide to acetylene, for example, yields acrylonitrile, which is used in the production of acrylic fibers. Acetylene can also be converted into vinyl acetylene, which is the raw material needed for the manufacture of neoprene, one of the most useful synthetic rubbers.” (7) But once again, this wasn’t a finding that came easily or was predictable. Wallace Carothers, a chemist at Du Pont challenged one of his assistants, Arnold Collins, to make synthetic rubber. You guessed it—acetylene was the key starting material. Reacting it with hydrochloric acid produced something they called vinylacetylene, and one weekend when a mixture was left setting in a flask, by the following Monday it had turned into a tiny, cauliflower-type mass. Sharon Bertsch McGrayne notes, “Collins stuck a wire into the glass vessel and fished a few cubic centimeters of the substance out. It felt strong, resilient, and elastic, much like vulcanized rubber. Almost without thinking, Collins threw the mass against his laboratory bench. It bounced like a golf ball. Collins had made chloroprene in his test tube, and over the weekend it had spontaneously polymerized into the high-grade synthetic rubber that Du Pont would market as Neoprene.” (8)

DuPont promoted it cleverly as a specialty rubber, more durable than natural rubber and more resistant to oil, gasoline, solvents, sunlight, and heat. Neoprene was also great for making balloons, like the ones used in Macy’s Thanksgiving Day parade. It also gave chemists the impetus to develop other synthetic rubbers. (7)

So from experiments originally intended to produce aluminum in one case and cheap diamonds in another, acetylene, a key player in the plastics, chemistry, and metallurgical industries, was discovered. This then led to PVC and other plastics, many organic chemicals, and oxyacetylene welding. Besides all this, both acetylene and PVC had been discovered a number of times before their value was really known. Is there any doubt why this should not put acetylene at, or near the top of the unintended consequences list?

References

1.Joe Schwarcz, The Genie in the Bottle, (New York, Henry Holt & Company, 2002), 154

2.James Burke, Connections, (Boston, Little, Brown & Company, 1978), 209

3.Joe Schwarcz, The Genie in the Bottle, 155

4.James Burke, Circles, (New York, Simon & Schuster, 2000), 220

5.“Poly(vinyl chloride),” http://www.pslc.ws/mactest/pvc.htm

6.Royston M. Roberts, Serendipity, (New York, John Wiley & Sons, 1989), 185

7.Joe Schwarcz, The Genie in the Bottle, 156

8.Sharon Bertsch McGrayne, Prometheans in the Lab, (New York, McGraw-Hill, 2001), 131

Wednesday, May 28, 2008

Global Warming Goes Round and Round

Jack Dini
Livermore, CA

(From Hawaii Reporter, May 28, 2008)

A very powerful case that the climate trend we’re currently seeing is part of a product of a solar-linked cycle that creates harmless naturally warmer conditions approximately every 1500 years is made in a recent book, Unstoppable Global Warming: Every 1500 Years, by S. Fred Singer and Dennis T. Avery. It has 459 references, a glossary and an index. This well written book is arguably the best book to date on the politics and science of global warming. In addition to presenting evidence for the 1,500 year solar cycle, first proposed by European researchers in the mid 1990s, the authors address both the Greenhouse and Solar/Cosmic Ray theories of climate change.(1) Singer and Avery maintain that there are natural cycles of cooling and warming going back at least a million years. These are small excursions of global temperature, much smaller than the ice ages, which is why they haven’t been noticed until the last 25 years or so.

This was reported in 1984 with the first analysis from the Greenland ice cores. Willi Dansgaard and Hans Oescher published their analysis of the oxygen isotopes in the ice cores extracted from Greenland. These cores provided 250,000 years of the Earth’s climate history in one set of ‘documents.’ The scientists compared the ratio of ‘heavy’ oxygen-18 isotopes to the ‘lighter’ oxygen-16 isotopes, which indicated the temperature at the time the snow had fallen. (2) As Singer and Avery report, “They expected to find evidence of the known 90,000 year Ice Ages and the mild interglacial periods recorded in the ice, and they did. However, they did not expect to find anything in between. To their surprise, they found a clear cycle—moderate, albeit abrupt—occurring about every 2,550 years running persistently through both. (This period would soon be reassessed at 1,500 years plus or minus 500 years.)” (3)

Since this early discovery, its fingerprints have been found all over the world, both in ice cores and sediments. (4)
- An ice core from the Antarctic’s Vostok Glacier, at the other end of the world from Greenland, was brought up in 1987 and showed the same 1,500 year climate cycle throughout its 400,000 year length.

- The 1,500 year cycle has been revealed in seabed sediment cores brought up from the floors of such far-flung waters as the North Atlantic Ocean and the Arabian Sea, the Western Pacific, and the Sargasso Sea.

- One seabed core near Iceland goes back a million years, and the 1,500 year cycle runs through the whole million years, roughly 600 of these moderate, natural cycles.

Over the last 1,200 years there has been a “Medieval Warming” (900-1300), when Greenland was green; a “Little Ice Age” (1300-1850), when New York harbor froze and people could walk from Manhattan across the ice to Staten Island a mile away (in 1780); and the current global warming (1850-??). Rather than ‘global warming,’ a better term for this phase of the solar cycle is “Modern Warming.” Since 1850, temperatures have risen 0.8 degrees C, most rapidly in 1850-1870 and 1920-1940. Temperatures in the 1,500 year solar cycle fluctuate within a 4 degree C range—two degrees above and two degrees below the norm. An added important point is that three-fourths of the present warming occurred before 1940, which was before most of the human emitted carbon dioxide we hear so much about these days.

So today’s global warming is part of a natural 1,500-year plus or minus 500-year cycle operating for at least a million years. The Earth’s climate has warmed and cooled nine times in the past 12,000 years in lock step with the waxing and waning of the sun’s magnetic activity. (5) The linkage with the sun has been verified by correlation between the Carbon 14 and Beryllium 10 isotopes in the ice with sunspot numbers.

The modern warming is not confined to this planet. Mars ice caps are melting and Jupiter is developing a second giant red spot, an enormous hurricane-like storm. Jupiter’s original Great Red Spot is 300 years old and twice the size of Earth. The new storm-Red Spot Jr. -is thought to be the result of a sudden warming on our solar system’s largest planet. Some parts of Jupiter are now as much as 6 C warmer than just a few years ago. (6) Neptune’s moon, Triton has heated up significantly since 1989. Parts of its frozen nitrogen surface have begun melting and turning to gas. (7) Even Pluto has warmed slightly in recent years, if you can call -230 C warmer than
-233 C.

All of this prompts Lorne Gunter to ask, “Is there something all these heavenly bodies have in common? Some one thing they all share that could be causing them to warm in unison? Hmmmm, is there some, giant, self-luminous ball of burning gas with a mass more than 300,000 times that of Earth and a core temperature of more than 20 million degrees C, that for the past century or more has been unusually active and powerful? Is there something like that around which they can all revolve that could be causing global warming?” (6)

Singer and Avery also cover a number of other issues:

- A particularly interesting chapter focuses on common sense regarding the extinction of species. The authors explain that most of the world’s animal species evolved 600 million years ago, so we know most of today’s species have successfully dealt with ice ages and global warming periods that have sent temperatures much higher and much lower than today’s temperatures. (8)

- The authors look at history and confirm that the frequency and severity of hurricanes, droughts, thunderstorms, hail and tornadoes have not increased in recent years. (9) John Christy of the University of Alabama at Huntsville, in testimony before Congress noted, ‘that the most significant droughts in the Southwestern United States occurred more than four hundred years ago, before 1600.’ He stated that before 1850, American’s Great Plains were called the ‘Great American Desert,’ and experts at the time said the region couldn’t be farmed. Weather just seems unusual and dangerous these days, said Christy, because of the increased media coverage of major storms.

Summary

Jay Lehr sums it up quite well, “Singer and Avery shatter the greenhouse gas theory, making it clear humanity’s modest addition to the atmosphere’s small amount of carbon dioxide does not hold up to a significant alteration in temperature. Obviously, all of this does not square with efforts to get us to reduce our use of cars, air conditioners, and fertilizer in order to reduce carbon in our atmosphere.” (10) So, regardless of what you do to reduce your carbon footprint, Mother Nature really doesn’t care.

References

1.S. Fred Singer and Dennis T. Avery, Unstoppable Global Warming, (New York, Rowman & Littlefield publishers, 2008), 24

2.W. Dansgaard et al., “North Atlantic Climatic Oscillations Revealed by Deep Greenland Ice Cores,” in Climate Processes and Climate Sensitivity, J. E. Hansen and T. Takahashi, Editors, (Washington, DC, American Geophysical Union, 1984) Geophysical Monograph 29, 288-90

3.S. Fred Singer and Dennis T. Avery, Unstoppable Global Warming, 2

4.S. Fred Singer and Dennis T. Avery, Unstoppable Global Warming, 3

5.Gerard Bond et al., “Persistent Solar Influence on North Atlantic Climate During the Holocene,” Science, 294, 2130, December 10, 2001

6.Lorne Gunter, “Breaking: Warming on Jupiter, Mars, Pluto, Neptune’s Moon & Earth Linked to Increased Solar Activity, Scientists Say,” National Post, March 13, 2007

7.J. L. Elliot, et al., “Global Warming on Triton,” Nature, 393, 765, June 25, 1998

8.S. Fred Singer and Dennis T. Avery, Unstoppable Global Warming, 163

9.S. Fred Singer and Dennis T. Avery, Unstoppable Global Warming, 201

10.Jay Lehr, “Careful Review of Science Refutes Global Warming Myths,” Environment & Climate News, 10, 12, March 2007

Thursday, May 15, 2008

Looking For Germs? Check Your Money.

Jack Dini
Livermore, CA

(From Hawaii Reporter, May 15, 2008)

The legal tender in your pocket or purse definitely carries some germs and most likely also has some cocaine. Researchers at the Wright-Patterson Air Force Base in Ohio collected 68 dollar bills from people at a grocery store and a high-school sporting event. According to Dr. Peter Ender, lead researcher, sixty-four (94%) of the bills were contaminated with bacteria known to cause either serious or mild illness. Five bills (7%) were found to be contaminated with bacteria which can cause infections in healthy people. Those bacteria included Staphylococcus aureus and Klebsiella pneumoniae, both of which can cause pneumonia or blood infections. Fifty-nine bills were contaminated with bacteria that are usually harmless in healthy individuals, but can still trigger serious illness in those with depressed immune systems, such as people undergoing various types of medical treatment or those with HIV. (1) However, Ender stressed that real health risks to the average consumer are pretty low, adding that US dollar bills may be no more or less covered in microbial goo than, say, doorknobs, pens, or computer keyboards. But he points out that US currency, especially ‘finds its way into all areas of the world.’ “With the rapid dissemination of money in the era of drug-resistant bacteria, perhaps a resistance clone could be spread from one geographic location to another,” he concludes. (2)

Philip Turner adds, “Many studies, including two of my own, have shown that money can be effective for germ transaction. ABC’s “20/20” asked me to help them prepare a segment on this issue, and I devised a plan for collecting money from street vendors, shops, restaurants, and other establishments in Chicago, New York City, and Washington, DC. After each transaction, the bills received were put directly into newly purchased wallets, which were then sealed in plastic. The bills were tested and found to be contaminated with germs of fecal, respiratory, and skin origin. Although the risk of contracting a serious infection from dirty money is low, the germ count is high enough to make it easy to contract a cold, a bout of diarrhea, and similar ailments.” (3)

Depending on where you are in the world you might get a different reaction to this issue. Disease experts in northeastern India issued a recent report that said ‘overused and soiled’ currency can transmit tuberculosis, pneumonia and other lung infections. British health authorities and travel guides regularly warn tourists in the region to wash their hand following every financial transaction. (4)

By contrast, Dr. Frank Vriesekoop, from Ballarat University in Australia, reported that there are generally very few pathogenic bacteria on banknotes and coins. He found low levels of common bacteria on the currency that were traded through various food outlets in Australia and New Zealand. He claims that it would be impossible for them to cause diseases like diarrhea, vomiting, or other gastric symptoms as usually believed, as their numbers were so insignificantly small, and that fears about currency hygiene were unwarranted. (5)

So, what can you do? Well, thorough washing of your hands is most important. Or, you could travel to Japan or Australia. In Japan you can go to a ‘clean ATM’ and get your yen pressed between rollers for one-tenth of a second at 392 F, enough to kill many bacteria. (6)

The dirtiness of bills in one reason Australia is leading the charge to use a plastic currency that is supposed to be inhospitable to both germs and counterfeiters and four times as durable as paper notes. Australia introduced the rubber-feeling bills in 1998 and now prints them for 33 other countries, including Romania, Malaysia, and Mexico. (7)

Another option is to launder your money—literally, like the Industrial and Commercial Bank of China, which took emergency action in an effort to stop the spread of SARS. They put into effect a policy of holding money for twenty-four hours before re-circulating it—long enough for the germs to die. Money is also sterilized by being placed under ultraviolet light for an hour. (1)

Or, you could just carry coins. Patricia Gadsby reports that anything that is very hard and dry isn’t terribly hospitable to bacteria, and many metals have antibacterial activity. Pennies often are sterile, presumably due to the copper, and most US coins are also about 75 percent copper. (6)

Best recommendation is perhaps from Laura Lee, “Then again, none of these extreme measures is really necessary, say the experts. Although the germs on money have the potential to contaminate people, there are no documented cases that it has. Instead of avoiding or cleaning money, the best protection is to wash your hands regularly.” (1)

Cocaine

“The probability that every single person in the United States is carrying drug-tainted money is almost certain,” says Dr. James Woodford, forensic chemist from Atlanta. Woodford cites a 1989 experiment by Miami toxicologist Dr. William Hearn, who gathered 136 dollar bills from banks in twelve cities. Of these 131 had traces of cocaine.

A study conducted at the Houston Advanced Research Center in Texas and the Argonne National Laboratory in Illinois examined currency (mostly singles, but also fives, tens, and twenties) in Miami, Chicago, and Houston. This project found an overall 70 to 80 percent contamination rate in the three cities, with single dollar bills more commonly contaminated than the higher denominations. Overall, the more worn the bills, the more coke was found on them. In very old bills, the contamination rate was closer to 90 percent. A recent look at money circulating in northern Illinois, found even higher rates: close to 93 percent of the sample, and 100 percent of the $20 bills tested positive for cocaine. “In fact, most Americans handle small amounts of cocaine every day, not as packets sold by drug dealers, but on the dollar bills that line their pockets,” were conclusions from this study. (6)

J. Oyler and colleagues reported that cocaine was present in 79% of currency samples analyzed in amounts above 0.1 microgram and in 54% of the currency in amounts above 1.0 microgram. Contamination was widespread and was found in single dollar bills from a number of US cities. Cocaine amounts were highly variable and ranged from nanogram to milligram amounts. The highest amount of cocaine detected on a single dollar bill was 1327 milligrams. These results indicated that cocaine contamination of currency is widespread throughout the United States. (9) The reason for this contamination relates to the exchange of illicit cocaine for money by drug dealers. During this exchange there is ample opportunity for paper currency to become contaminated.

Should you worry? Not at all. Cocaine on cash is so commonplace that the courts have ruled that police can no longer use a drug-sniffing dog’s signal to nab a suspect or to confiscate money because it’s deemed drug-related. (7)

References

1.Laura Lee, 100 Most Dangerous Things in Everyday Life, (New York, Broadway Books, 2004), 140
2.“Bacteria Study Gives New Meaning to ‘Dirty Money’”, Reuters, May 23, 2001
3.Philip M. Turner, The Secret Life of Germs, (New York, Pocket Books, 2001), 104
4.Steve Newman, “Currency Health Risk,” San Francisco Chronicle, May 4, 2002, Page C10
5.“Research Shows That Money May Not Harbor Many Pathogenic Bacteria,” medindia.com, July 13, 2006
6.Patricia Gadsby, “Filthy lucre-money is contaminated with bacteria,” Discover, 19, 76, October 1998
7.Carol X. Vinzant, “The Secret Life of the Dollar,” money.aol.com; accessed January 30, 2008
8.Kathryn Garfield, “Stinking Lucre,” Discover, 28, 15, February 2007
9.J. Oyler, W. D. Darwin, and E. J. Crane, “Cocaine contamination of United States paper currency,” J. Anal. Toxicol., 20, 213, 1996

Monday, April 7, 2008

More Pressing Issues Than Global Warming

Jack Dini
Livermore, CA


(From Hawaii Reporter, April 7, 2008)

“As often happens—especially these days with Web-based media—contentious issues such as global warming become politicized to the point that the discourse trivializes to an alarming extent. Indeed, all one seems to hear about climate change are essentially useless debates between believers and skeptics, along with unrealistic and grotesquely draconian proposals that would force us back into the Stone Age in an effort to mitigate carbon dioxide production,” says Michael Shaw. He adds, “Assertions by zealots and politicians, who should really know better, that climate change is the ‘most important environmental problem facing the world,’ ought to be subjected to the cold light of reason. Before untold resources are spent, shouldn’t we at least compare climate change to other problems facing mankind?” (1)

Let’s look at some of these other problems facing mankind. Ten of the most serious challenges facing the world today include: access to education, climate change, communicable diseases, conflicts, corruption and governance, financial instability, hunger and malnutrition, migration, sanitation and access to clean water, and subsidies and trade barriers. The Copenhagen Consensus explored opportunities for addressing these issues. This group, organized by Danish statistician Bjorn Lomborg, is an attempt by leading economists (including three Nobelists) to set priorities for spending using traditional cost-benefit analysis. They were asked to address the challenge areas and to answer the question: ‘What would be the best ways of advancing global welfare, and particularly the welfare of developing countries, supposing that an additional $50 billion of resources were at governments’ disposal?’ Challenge papers, commissioned from acknowledged authorities in each area of policy, set out more than thirty proposals in descending order of desirability. In ordering the proposals the panel was guided predominantly by consideration of economic costs and benefits. (2)

The results? Compared to other issues such as communicable diseases, malnutrition and hunger, sanitation and water, and the rest, climate change ranked last on the list. Vernon Smith, Professor of Economics and Law, George Mason University, provided this summation: “It is clear from both the science and the economics of intervention that those of us who care about the environment are not well advised to favor initiating a costly attempt to reduce greenhouse gases build-up in the atmosphere in the near future based on available information. Although the ultimate dangers may turn out to prompt action, the current evidence indicates that it is much too soon to act relative to the many other important and pressing opportunities that demand immediate attention.”(3) (Smith’s italics, not mine)

Indur M. Goklany, whose resume includes stints with federal and state governments, think tanks, and the private sector for over 30 years, has also analyzed this issue. He examined certain risks to humanity, and compared the contributory effects of climate change to non-climate factors. His most significant conclusion: “Climate change is clearly not the most important environmental, let alone public health problem facing the world today, nor is it likely to be the most important environmental problem confronting human or environmental well-being, at least through the foreseeable future. Hence, the argument that we should shift resources from dealing with the real and urgent problems confronting present generations to solving potential problems of tomorrow’s wealthier and better positioned generations is unpersuasive at best and verging on immoral at worst.” (4)

Goklany provides data from the World Health Organization (WHO). Similar to the conclusions from the Copenhagen Consensus mentioned earlier, climate change doesn’t even make the top ten global health risk factors related to food, nutrition, and environmental occupation exposure. Specifically, the WHO provides the following information:

Malaria (2001) 1.12 million deaths
Malnutrition 3.24 million deaths
Unsafe water, inadequate sanitation,
and hygiene 1.73 million deaths
Indoor air pollution from heating and cooking
with wood, coal, and dung 1.62 million deaths
Urban air pollution 800,000 deaths
Lead exposure 230,000 deaths

How many deaths from climate change? No one knows. However, a review paper published in Nature in 2005 claims that global warming may have been responsible for about 170,000 deaths worldwide in 2000. (5) This estimate is based on an analysis which was put out under the auspices of WHO. However, as Goklany notes, “The 170,000 estimate should be viewed with skepticism since science was admittedly sacrificed in hot pursuit of a predetermined policy objective.” (4)

Let’s look at malaria. Some alarmists promote the idea that tropical diseases like malaria will spread because of global warming. However, the geographical spread of these diseases has very little to do with climate. (6) Throughout the Little Ice Age, malaria was a major epidemic disease in Europe and far into the Arctic Circle. (7) In the nineteenth century, malaria, cholera, and other diarrheal and parasitic diseases were prevalent around the world, including northern Europe. (7) Malaria was endemic in England until the late 1800s and in Finland until after World War II. Malaria in the US was still endemic in 36 states until after World War II. (6) Today this disease is a problem only in countries where the necessary public health measures are unaffordable or have been compromised. Past history reveals that combating malaria is primarily a question of development to ensure efficient monitoring of the disease and resources to secure a strong effort to eradicate the mosquitoes and their breeding grounds. Wealth and a functioning public health system is what matters when it comes to combating tropical diseases. (7)

Malaria is functionally eliminated in a society whose annual per capita income reaches $3,100. Even under the poorest scenario prediction, the average GDP per capita for developing countries is projected to be $11,000. Hence, few, if any countries ought to be below the $3,100 threshold in 2085. (4) According to the UN Millennium project, a 75% reduction in malaria deaths can be achieved for $3 billion/year, with a program focused directly on malaria prevention. Talk about a better bang for your buck! (1)

Summary

By focusing our priorities on future generations, we focus less on improving the lives of people who are alive today. These future generations bear no closer relationship to us than those now living in developing countries whose lives we disdain to save. Why are we not feeding people in the world who are hungry? Why are we not giving clean water to the almost one billion people who don’t have clean water? The greatest source of environmental degradation is poverty. Why aren’t we helping eliminate poverty? One answer is that perhaps it is a lot easier worrying about future generations than trying to fix present day problems.

Even the Intergovernmental Panel on Climate Change (IPCC), the organization which is providing much of the doom and gloom about global warming, raises the flag about future generations. This is the same IPCC whose scenarios predict that by 2100, nations that are poor today will at least by as rich as we are at present, and more likely will be 2 to 4 times more wealthy. The IPCC makes this important point about developing countries: “If we take aggressive action to limit climate change they may regret that we did not use the funds instead to push ahead development in Africa, to better protect species against the next retrovirus, or to dispose of nuclear materials safely…Alternatively, if the developed countries choose to embark on an aggressive control regime now, and if this cuts into their growth rates, the result will shrink export markets for developing countries and thus reduce growth there. In addition, if developed countries view their greenhouse effects as, in effect, aid to developing countries, they may cut back on other programs (sanitation, education for women, etc.) that have a more immediate impact on life expectancy, health and well-being.” (8)

Bjorn Lomborg observes: “Imagine if you were a rich Chinese or a rich Rwandan or a rich Bolivian in 2100, looking back on 2004, saying how odd that people of 2004 were so concerned about helping me a little bit through climate change and so relatively unconcerned about helping my grandfather and my great-grandfather who needed the help much, much more. (9)

References

1.Michael D. Shaw, “A Rational Look at Climate Change,” healthnewsdigest.com, February 10, 2008
2.Global Crises, Global Solutions, Bjorn Lomborg, Editor, (Cambridge, Cambridge University Press, 2004) 605
3.Global Crises, Global Solutions, Bjorn Lomborg, Editor, 635
4.Indur M. Goklany, “What to do about climate Change,” Policy Analysis No. 609, Cato Institute, February 5, 2008
5.Jonathan A Patz et al., “Impact of Regional Climate Change on Human Health,” Nature, 438, 310 2005
6.Martin Ague, “Is Kyoto a good idea?” in Adapt or Die, Kendra Okonski, Editor, (London, Profile Books Limited, 2003), 77
7.Bjorn Lomborg, The Skeptical Environmentalist, (Cambridge, Cambridge University Press, 2001), 291
8.Wilfred Beckerman, “The precautionary principle and our obligation to future generations,” in Rethinking Risk and the Precautionary Principle, Julian Morris, Editor, (Oxford, Butterworth Heinemann, 2000), 53
9.Marc Morano, “Ignore Global Warming Says Former Greenpeace Member,” cnsnews.com, December 14, 2004

Tuesday, April 1, 2008

No Consensus on Global Warming

Jack Dini
Livermore, CA

(From Hawaii Reporter, April 1, 2008)

“Rashomon,” a celebrated Japanese film, presents four witnesses observing a single crime. Each witness perceives the situation so differently that the audience experiences what appears to be four distinct events. Current discourse on climate change, or if you prefer, global warming, raises a “Rashomon-like” specter of competing perceptions. On the one side are those of see the world in a heap of trouble. As Lynn Scarlett notes, “They focus on the moment, see despoliation, and predict doom. They believe we can evade doom, but only through sweeping changes, wrought through single-minded pursuit of an environmental imperative.” (1) They are convinced that mankind is responsible for the earth’s surface warming about 0.7C over the past century. These are the folks in the ‘consensus category’ that Al Gore and the media talk about. According to Gore, “The science is settled on climate change. The planet has a fever and its cause is too many cars, power plants, factories, and other human-related sources putting too many emissions into the atmosphere.” (2)

On the other side are the ‘disbelievers.’ These folks posit that warming is part of Mother Nature’s natural cycle and there isn’t a whole lot we can do about it. Although they are a ‘minority,’ there are many more scientists that fit this category than most people realize. They aren’t given much media attention since the media for the most part belongs too the ‘consensus’ group. After all, you don’t get attention by saying that things are just fine; you need to spruce news up with doom and gloom stories. More than 22,000 scientists signed the dissenting “Petition Project” which urges political leaders to reject the Kyoto Protocol or other similar proposals that would mandate draconian tax and regulatory measures aimed at virtually all human economic activity. The petition states there is no convincing scientific evidence that human release of carbon dioxide, methane, or other green house gases is causing or will, in the foreseeable future, cause catastrophic heating of the Earth’s atmosphere and disruption of the Earth’s climate. (3)

According to a January 1, 2007 New York Times article by Andrew Revkin, a new middle stance has emerged in the debate over climate change. Revkin reports that more scientists are distancing themselves from the extreme fear mongering and exaggerated claims of the climate-change alarmists. (4)

Marc Morano notes that after a May 16, 2007 vote in the Senate on global warming, “there is a shift taking place in climate science. Many former believers in catastrophic man-made global warming have recently reversed themselves and are now climate skeptics. The media’s fear factor seemingly grows louder even as the latest science grows less and less alarming by the day. It is also worth noting that the proponents of climate change fears are increasingly attempting to suppress dissent by skeptics.” (5)

In December 2007, over 400 scientists from more than two dozen countries voiced significant objections to major aspects of the so-called ‘consensus’ on man-made global warming. These scientists, many of whom are current and former participants in the UN IPCC (Intergovernmental Panel on Climate Change), criticized the climate claims made by the UN IPCC, and Al Gore in a report issued by the Senate Environment and Public Works Committee. The report lists the scientists by name, country of residence, and academic/institutional affiliation. It also provides their own words, biographies, and weblinks to their peer reviewed studies and original source materials as gathered from public statements, various news outlets, and websites in 2007. (6)

And more recently, scientists skeptical of man-made climate fears met at the 2008 International Conference on Climate Change in New York City. The March 2-4 groundbreaking conference featured about 100 speakers with over people in attendance. Key items discussed at the conference included:
- Most of climate change is caused by natural forces.
- The human contribution is not significant.
- Solar activity changes are the main cause of climate change.

William Jasper reports,”The advocates of Kyoto and other schemes to super-regulate the planet frequently try to portray the scientists who dispute their claims of global warming peril as fringies, fogies, and ‘nut cases’ who shouldn’t be taken seriously. However, as brutal scientific facts have poked holes in their hypothetical global-warming models, the Gore camp has become more strident and abusive. Rather than answer the scientific critiques, they have tended simply to accuse opposition scientists of being in the pay of energy companies. Even worse, they have adapted the tactic of labeling scientists who dispute their claims as being ‘climate-change deniers,’ on a par with ‘Holocaust deniers.” The more radical elements of the climate-change alarmist movement have targeted dissenting scientists for vilification and harassment, even trying to deprive them of their jobs, research grants, and tenure. The most virulent ‘Greens’ call for them to be tried as ‘traitors.’ (2)

Many of the scientists feature in the Senate Report issued in December 2007 consistently stated that numerous colleagues shared their views, but they will not speak out publicly for fear of retribution. Atmospheric scientist, Dr. Nathan Paldor, Professor at the Hebrew University of Jerusalem and author of almost 70 peer-reviewed studies, explains how many of his fellow scientists have been intimidated: “Many of my colleagues with whom I spoke share these views and report on their inability to publish their skepticism in the scientific or public media.” (6) Another example is Dr. Robert Giegengack of the University of Pennsylvania, a geologist who studies ancient atmospheres and finds no relationship between global temperatures in the past and carbon dioxide levels. He says other scientists have told him to just stop broadcasting that finding saying, “People come to me and say, ‘Stop talking like this, you’re hurting the cause.’” (7)

Looks like William F. Buckley, Jr., wasn’t far off the mark with his comment: “The heavy condemnatory breathing on the subject of global warming outdoes anything since high moments of the Inquisition.” (8)


Some Final Words

Assertions by zealots and politicians, who should really know better, that climate change is the ‘most important environmental problem facing the world,’ ought to be subjected to the cold light of reason says Michael Shaw. Before untold resources are spent, shouldn’t we at least compare climate change to other problems facing mankind? (9) What about issues like communicable diseases, malnutrition and hunger, sanitation and access to clean water? Many, if not all, of these demand immediate attention and can aid folks in serious need at present, not some future generations, that may or may not be affected by the weather in the 2100s.

Lastly, 30 years ago we were supposedly headed into a cooling cycle akin to the Little Ice Age. (10) Now, it’s an unprecedented heating cycle. If you ask me, that’s an awfully quick time for a flip-flop on the weather. If the 14 billion year cosmic history were scaled to one day, then 100,000 years of human history would be 4 minutes and a 100 year life-span would be 0.2 seconds. (11) So, in less than 0.1 second in cosmic time we’ve switched on climate change. Seems like we need a few more cosmic time seconds to gather more data.

References

1.Lynn Scarlett, “Clear Thinking About the Earth,” in Environmental Gore, John A. Baden, Editor, (San Francisco, Pacific Research Institute, 1994), 249
2.William F. Jasper, “2008 Climate Debate,” The New American, March 31, 2008
3.William F. Jasper, “Analyzing Global-Warming Science,” The New American, February 18, 2008
4.Andrew C. Revkin, “A New Middle Stance Emerges in Debate Over Climate,” The New York Times, January 1, 2007
5.Marc Morano, “List of global warming activists, now skeptics,” Spero News, May 16, 2007
6.“United States Senate Report: Over 400 Prominent Scientists Disputed Man-Made Global Warming Claims in 2007; Senate Report Debunks ‘Consensus’”, December 20, 2007
7.William J. Broad, “In Ancient Fossils, Seeds of a New Debate on Warming,” in The Best American Science Writing 2007, Gina Kolata, Editor, (New York, Harper Perennial, 2007), 252
8.William F. Buckley, Jr., National Review, March 31, 2007
9.Michael D. Shaw, “A Rational Look at Climate Change,” healthnewsdigest.com, February 10, 2008
10.Stephen H. Schneider, The Genesis Strategy, (New York, Plenum Press, 1976), 90
11.Max Tegmark, “We’re Not Insignificant After All,” in What Are You Optimistic About?, John Brockman, Editor, (New York, Harper Perennial, 2007), 4