Cartoons: Bill Mauldin on DDT

May 16, 2009

Bill Mauldin rose to fame drawing cartoons from the fronts during World War II, first as a soldier, and then as the cartoonist for Stars and Stripes.  He won the Pulitzer Prize for cartooning in 1945.  After the war he continued to be a major force in American culture, eventually cartooning for the St. Louis Post-Dispatch and quickly winning a second Pulitzer, and then with the Chicago Sun-Times, with drawings syndicated to other newspapers around the world.

In 1962 Mauldin turned his pen to DDT and the controversy created in part by Rachel Carson’s best-selling book Silent Spring.

CREDIT: Mauldin, Bill, artist. Another such victory and I am undone Copyright 1962, Field Enterprises, Inc. Prints and Photographs Division of the Library of Congress.

CREDIT: Mauldin, Bill, artist. “Another such victory and I am undone” Copyright 1962, Field Enterprises, Inc. Prints and Photographs Division of the Library of Congress.


History: May 15, 1963, President’s council vindicates Rachel Carson, warns of pesticide dangers

May 15, 2009

President John F. Kennedy’s Science Advisory Council (PSAC) studied Rachel Carson’s best-selling book, Silent Spring, checking it for scientific accuracy.  Kennedy read the book himself, but sought expert advice before doing anything.  Meanwhile, DDT manufacturers bankrolled an extensive public relations campaign claiming DDT was safe, and suggesting Carson was less than a careful writer and scientist.

On May 15, 1963, PSAC reported:  Carson was right. Pesticides were being misused, even abused, and some pesticides like DDT presented significant threats to the environment.  “The Use of Pesticides” recommended increased government scrutiny of the safety and efficacy of pesticides, and vindicated Carson’s reporting of science findings.

Library of Congress described the event and its import in America’s Library, “Meet Amazing Americans”:

The Consequences of Silent Spring

Reading Carson’s book changed many people’s ideas about the environment and inspired some to take action. People wrote to their representatives in congress and asked them to do something about the misuse of pesticides. When several senators created a committee to research environmental dangers, they asked Carson to speak to them about pesticides. Carson recommended that the government regulate and reduce pesticide use, and that it ban the most toxic pesticides. She said that a citizen of the United States had the right “to be secure in his own home against the intrusion of poisons applied by other persons.”

President Kennedy understood the importance of Carson’s book. He asked his Science Advisory Committee to research Carson’s claims in Silent Spring. In 1963 the Committee released a report called “The Uses of Pesticides.” It supported Silent Spring. Environmental activists continued to push the government to regulate pesticides. Changes in federal law in 1964 required companies to prove that something did not cause harm before they could sell it. In 1972, activists pushed for and won a ban on DDT, the pesticide that started Carson’s research for Silent Spring. And in 1970 the Environmental Protection Agency (EPA) was created “in response to the growing public demand for cleaner water, air and land.” Who knows what the world would be like today if Rachel Carson had not written Silent Spring?

 
Some radicals argue that Rachel Carson’s legacy is tarnished, that she was in error about DDT, and somehow that translates into many deaths as a result of malaria, as if DDT worked against malaria parasites themselves.  With such a strong propaganda campaign of disinformation plaguing us today, we do well to pause and remember that Carson’s work was subjected to intense, careful scrutiny by scientists from the start.  Carson’s reporting was accurate, and her legacy of environmental protection and saving lives should be celebrated.

Teaching Resource: Role play simulation, “Advisory Committee on Pesticides 1963,” (see especially the list of historic and scientific resources available for study and for the simulation, from Douglas Allchin).

Rachel Carson in the ocean in Florida, 1955 - photo, R. G. Schmidt, USFWS

Rachel Carson in the ocean in Florida, 1955 – photo, R. G. Schmidt, USFWS

Updates, January 2013:

More, from 2013:

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History: May 15, 1953 and the mysteries of life’s beginnings

May 15, 2009

May 15, 1953, saw the publication in Science of Stanley Miller’s dramatic experiment showing that essential chemicals of life rise spontaneously.

The late Prof. Stanley Miller.  ISSOL photo

The late Prof. Stanley Miller. ISSOL photo

As usual, the real history is better and much more serendipitous than anyone could imagine in a fictional account; here’s an account from the International Astrobiology Society (ISSOL), from their 2003 celebration of the 50th anniversary of Miller’s paper’s publication:

The University of Chicago Chemistry Department seminars were held on Mondays in Kent Hall, an old building where the floors creaked and there was a smell of dust and mildew. Only the most distinguished scientists were invited to speak at this seminar, many had Nobel prizes or were to receive one, and the list included Franck, Urey, Calvin, Seaborg, Eigen, Libby and Taube.

But this day was different because a second year graduate student, Stanley Lloyd Miller, was speaking, and the room was full because the word had spread that something important was to be presented. In addition to the famous scientists and less famous but equally high-powered scientists was an undergraduate, Carl Sagan attending his first chemistry seminar. The topic was the synthesis of important biological compounds, using conditions thought to have existed on the primitive Earth.

Miller reported that by sending repeated electric sparks through a sealed flask containing a mixture of methane, ammonia, hydrogen, and water vapor, he had made some of the amino acids found in proteins. Perhaps, he suggested, this was how organic compounds were made on the ancient Earth before life existed.

While Miller was confident of his results, the rows of famous faces in his audience were, to say the least, intimidating. He was bombarded with questions. Were the analyses done correctly? Could there have been contamination? After the event, Miller thought that the questions had been constructive, but since the results were hard to believe, they had simply wanted to ensure that he had not made some mistake. However, Carl Sagan thought that Miller’s inquisitors seemed to be picky and did not appreciate the significance of the experiment. Even the relevance of Miller’s results to the origin of life were questioned. When someone asked Miller how he could really be sure this kind of process actually took place on the primitive Earth, Nobel Laureate Harold Urey, Miller’s research advisor, immediately interrupted, replying, “If God did not do it this way, then he missed a good bet.” The seminar ended amid the laughter, and the attendees filed out with some making complimentary remarks to Miller. Miller changed clothes, went back to the lab and started a paper chromatography run.

The events leading up to this dramatic seminar began two years earlier in October, 1951 when Urey presented the Chemistry Department seminar on the origin of the Solar system. In addition to the usual high powered scientists, the audience had contained the then first year graduate student, Stanley Miller.

Read “Prebiotic Soup—Revisiting the Miller Experiment” by Jeffrey Bada and Antonio Lazcano published in Science300 (2003) 745-726 in full text or as a PDF.

This is an abridged version of the Stanley Miller’s 70th Birthday published in Origins of Life and Evolution of the Biosphere 30: 107-112, 2000 by Jeffrey Bada and Antonio Lazcano and The Spark of Life – Darwin and the Primeval Soup by Christopher Wills and Jeffrey Bada, Perseus Books, 2000.

More than 50 years ago scientists demonstrated that basic chemicals of life, thought previously by some to be too complex to arise naturally, could occur in nature spontaneously. Much of the misunderstanding and crank science behind creationism is devoted to hiding these facts.

Lift a glass to Stanley Miller and his experiment today, a toast to learning, a toast to the truth.

More Resources:


Lock up your children and diplomas: Texas Lege still festering

May 14, 2009

In Austin, the Texas Lege stumbles on.  No man’s life, liberty, etc.

Steve Schafersman writing at his new blog, Geo.Sphere, gives details probably available nowhere else on bills to overhaul Texas education again, again.

House Bill 3 and Senate Bill 3, the two identical bills being considered in the Legislature now that will change Texas education laws for student assessment, tracking, documentation, and accountability, also affect high school graduation requirements. Unfortunately, anti-education lobbyists have been very successful and the HB3-SB3 bill as currently written delays the implementation of the 4×4 high school curriculum for many years. This will have a very deleterious effect on Texas science and math education, college readiness, allow continuation of the senior-year math and science layoff, and remove the need for a variety of 12th-grade capstone science and math courses.

Yes, you need to call your Texas representatives.  Schafersman gives the numbers.  Drop by his new blog, get details, get on the phone.

Of course you know, Schafersman is also the head of Texas Citizens for Science.


Intelligent design and religion-based ignorance explained

May 11, 2009

Confused about intelligent design?  Confused about how people with working brains could advocate intelligent design?  Read this story — you could have an epiphany.


Afarensis back in the old digs

May 10, 2009

Afarensis left the Seed stable. Here’s the new (old) site.

Afarensis skull - symbol of Afarensis  blog

Afarensis skull - symbol of Afarensis blog

Some story there, maybe some drama, maybe not much.  Still worth reading.


Alma conference on DDT and human health calls for DDT phase out (Pine River statement)

May 5, 2009

Wheels of science grind carefully, accurately, and consequently, slowly.

The report from last year’s Alma College conference on DDT and human health has been published in .pdf form at Environmental Health Perspectives:  “The Pine River Statement:  Human Health Consequences of DDT Use.”

Carefully?  Check out the pages of references to contemporary studies of human health effects.  Each one of the studies cited is denied by the more wild advocates of DDT use, and each of those studies refutes major parts of the case against DDT restrictions.

Warning sign near the old Velsicol plant where DDT was produced, on the Pine River, Michigan. The 1972 ban on DDT use in the U.S. was prompted by damage to wildlife and domestic animals; a 2009 conference noted that human health effects of DDT are also still of great concern, and perhaps cause alone for continuing the ban on DDT.
Warning sign near the old Velsicol plant where DDT was produced, on the Pine River, Michigan. The 1972 ban on DDT use in the U.S. was prompted by damage to wildlife and domestic animals; a 2009 conference noted that human health effects of DDT are also still of great concern, and perhaps cause alone for continuing the ban on DDT.

Warning sign near the old Velsicol plant where DDT was produced, on the Pine River, Michigan. The 1972 ban on DDT use in the U.S. was prompted by damage to wildlife and domestic animals; a 2009 conference noted that human health effects of DDT are also still of great concern, and perhaps cause alone for continuing the ban on DDT.

Accurately?  Notice how the conference marks those areas where we do not have good research, such as in the long-term health effects to people who live in the houses that are sprayed with DDT for indoor residual spraying (IRS).  While the conference report cites studies showing elevated DDT levels in the milk of women who live in those homes, they draw no unwarranted conclusions.  Alas, that leaves the field free for Paul Driessen to rush in and claim there are no ill effects — but read the paper for yourself, and you’ll see that’s far from what the research shows.  The paper exposes Steven Milloy’s claims to be almost pure, unadulterated junk science.

Slowly?  Well, it’s been more than a year.

The paper makes one powerful statement that is only implicit:  The claims that DDT is safe, and that use of the stuff should be increased, are wildly inflated.

The paper’s abstract:

Objectives: Dichlorodiphenyl trichloroethane (DDT) was used worldwide until the 1970s, when concerns about its toxic effects, its environmental persistence, and its concentration in the food supply led to usage restrictions and prohibitions. In 2001, more than 100 countries signed the Stockholm Convention on Persistent Organic Pollutants (POPs), committing to eliminate the use of 12 POPs of greatest concern. DDT use was however allowed for disease vector control. In 2006, the World Health Organization and the U.S. Agency for International Development endorsed indoor DDT spraying to control malaria. To better inform current policy, we reviewed epidemiologic studies published in the last five years which investigated the human health consequences of DDT and/or DDE exposure.

Data Sources and Extraction: We conducted a PubMed search in October 2008 and retrieved 494 studies.

Data Synthesis: Use restrictions have been successful in lowering human exposure to DDT, however, blood concentration of DDT and DDE are high in countries where DDT is currently being used or was more recently restricted. The recent literature shows a growing body of evidence that exposure to DDT and its breakdown product DDE may be associated with adverse health outcomes such as breast cancer, diabetes, decreased semen quality, spontaneous abortion, and impaired neurodevelopment in children.

Conclusions: Although we provide evidence to suggest that DDT and DDE may pose a risk to human health, we also highlight the lack of knowledge about human exposure and health effects in communities where DDT is currently being sprayed for malaria control. We recommend research to address this gap and to develop safe and effective alternatives to DDT.

Rachel Carson was right.

Tell other people about this conference report.  This is real science, and it deserves to be spread far and wide.

Tip of the old scrub brush to Ed Lorenz at Alma College, both for providing the news, and for his work to organize the original conference.

Other information:


Evolution theory driven by anti-racism

May 3, 2009

Here’s a book that most creationists hope you never read and which strikes terror in the hearts of Discovery Institute fellows: Darwin’s Sacred Cause: How a Hatred of Slavery Shaped Darwin’s Views on Human Evolution.

Cover of Desmond and Moores 2009 book, iDarwins Sacred Cause/i

Cover of Desmond and Moore's 2009 book, Darwin's Sacred Cause

It’s another grand book on Darwin from the team of Adrian Desmond and James Moore, based on their deep diving into the archives of writings from and about Darwin in his own time.  Their earlier book, Darwin, is a bit of a modern classic in biography, and a must-read for anyone seriously studying Darwin and evolution.

This book promises to eviscerate a favorite chunk of calumny claimed by creationists, that Darwin’s theory is flawed because Darwin himself was a racist.  Scientists painstakingly note that the racist views of a scientist don’t affect the theory (think of William Shockley and the transistor), but creationists still use the false claim as fodder for sermon’s and internet rants.  Or, in the case of the Discovery Institute, the false claims is used as a justification to appoint a fellow in the propaganda department, Richard Weikart.

Desmond and Moore confront the claims head on, it appears.  How will creationists change their story to accommodate these facts?  Or, will creationists resort to denial?

One theme that may be supported in the book is the realization that pursuit of a noble cause frequenly ennobles those who pursue it.  Certainly it is easy to make a case that Darwin’s hatred of slavery and advocacy for its abolition colored his views of what he saw, though perhaps not so much as what he saw colored his views of slavery and abolition.  Desmond and Moore have a chapter that discusses Charles Lyell’s trips to America, and Lyell’s different views on slavery having traveled the American south.  Lyell did not travel as an abolitionist, and his views suffer as a result.  Lyell was a product of his times in the portrait Desmond and Moore paint.  Darwin demonstrated the power of science, and the power of personal use of science, in using the facts to overcome racism; Darwin used his experience and study to rise above the times.  That may be the difference between the men, why we celebrate Darwin today, and remember Lyell as a good scientist, but usually a footnote to Darwin.

Resources:


Applying evolution theory to defeat malaria

May 3, 2009

If the theory works, why not use it, eh?

One of the most serious problems with the use of DDT is that it tends to drive insects to evolve defenses to pesticides very quickly.  Almost every mosquito on Earth today has alleles that allow it to digest DDT, rather than be poisoned by it.  These alleles arose shortly after DDT was put into use against mosquitoes, and by the mid-1960s had made fruitless the malaria eradication campaign worked by the World Health Organization.

Evolution can be used to the benefit of humans and the eradication of malaria, too.

Voice of America (remember that agency?) tells the story of Andrew Read, a researcher at Penn State University, who realized that the deadliest mosquitoes are old ones — malaria has to survive for about two weeks in the mosquito in its life cycle in order to be infectious to humans.  If the mosquito dies before that time, the malaria can’t be transmitted.

Read’s proposal?  He has a fungus that takes a couple of weeks to work, but which kills the mosquito once it gets going.

In other words, Read doesn’t worry about getting all the mosquitoes.  His method, if it works, will kill only the mosquitoes most likely to carry malaria.

Plus, since most of the breeding cycle of these mosquitoes will be completed, it won’t drive the mosquitoes to evolve around the problem.

“The good thing about just killing the old ones is that most mosquiotoes will have done most of their reproduction before you kill them, and that means the susceptible mosquitoes will indeed continue to breed, so you still have susceptible mosquitoes, and your insecticides then just work against the old guys, removing them, and they are the dangerous ones. So under those circumstances, you don’t get the evolution of insecticide-resistant mosquitoes.”

He and his colleagues have been testing a kind of fungus that makes mosquitoes sick over the course of several weeks. And it eventually kills the oldest and most infectious mosquitoes.

“The name of the game is not mosquito control. It’s actually malaria control,” Read explains. “So if you just remove the old ones, you still have lots of young, non-dangerous mosquitoes around, but you have controlled malaria.”

Read says this fungus is about 98 to 99 percent effective at killing old mosquitoes in the lab. Now he says he needs to test this fungal insecticide in villages areas where malaria is prevalent, to see whether fewer people get the disease, even if they’re still getting bitten by mosquitoes.

Read and his team propose a new concept of mosquito control, based on what we know about the life cycles of mosquitoes and how they evolve, rather than just looking for one more “new” pesticide to which the insects will soon become resistant.  Read’s article appears in the open-access Public Library of Science (PLoS), published April 7, 2009:  “How to Make Evolution-Proof Mosquitoes for Malaria Control.” His coauthors are Penelope A. Lynch and Matthew B. Thomas.

Summary

Insecticides are one of the cheapest, most effective, and best proven methods of controlling malaria, but mosquitoes can rapidly evolve resistance. Such evolution, first seen in the 1950s in areas of widespread DDT use, is a major challenge because attempts to comprehensively control and even eliminate malaria rely heavily on indoor house spraying and insecticide-treated bed nets. Current strategies for dealing with resistance evolution are expensive and open ended, and their sustainability has yet to be demonstrated. Here we show that if insecticides targeted old mosquitoes, and ideally old malaria-infected mosquitoes, they could provide effective malaria control while only weakly selecting for resistance. This alone would greatly enhance the useful life span of an insecticide. However, such weak selection for resistance can easily be overwhelmed if resistance is associated with fitness costs. In that case, late-life–acting insecticides would never be undermined by mosquito evolution. We discuss a number of practical ways to achieve this, including different use of existing chemical insecticides, biopesticides, and novel chemistry. Done right, a one-off investment in a single insecticide would solve the problem of mosquito resistance forever.

Among reasons you may want to bookmark that publication:  In the opening paragraphs the authors discuss how Indoor Residual Spraying drives mosquito resistance to pesticides, with citations to the most recent and most powerful studies.  This is the case against bringing back DDT in a big way.


Equations, tattooed into our lives

May 2, 2009

Tattoo of Alison, a high-school physics teacher - from Carl Zimmers Collection, at the Loom

Tattoo of Alison, a high-school physics teacher - from Carl Zimmer's Collection, at the Loom

Can’t tell which equation is the Mandelbrot Set, which the hydrostatic equation, which the description of entropy?  Can’t figure out why the delta, and otherwise confused?  Alison explains it all, at Carl Zimmer’s blog, The Loom.

It’s relatively clear that she didn’t get the tats to use them to cheat on any exams.


Making a false case against Gardasil

May 2, 2009

Especially after working for so many years alongside the big drug companies working health legislation in the Senate, and after later policy work for private companies that made the point again that Big Pharma doesn’t always act scrupulously (remember Oraflex?), I’m no particular fan of the big companies.

But I am a big fan of getting the facts before making claims against them.  I also stand in awe of the accomplishments of medicine, including Big Pharma, in so many areas.  My oldest brother had polio as a kid, and it haunted him to his death.  Polio vaccine was a great advance.  I survived a bout of scarlet fever as an infant, but as a result I am particularly vulnerable to certain infections now; I stand in awe of a $10 prescription that literally saves my life.

Get the facts.  We’re talking saving lives here — be sure you’re accurate.

There is a nasty campaign against modern medicine claiming that vaccines and other injectable preventives do not work, or do much greater harm than is revealed.

One victim of this unholy smear campaign is the Merck Drug company, and its anti-cancer vaccine Gardasil.  This vaccine has been the topic of much controversy here in Texas.  I’ve written about it before.

So I was shocked once again browsing Neil Simpson’s blog (looking for a post that disappeared, it now seems), to discover this statement of concern from Mr. Simpson:

Gardasil Moms: If one of those 32 dead girls or women was your daughter. . . – I wouldn’t rush out and get the vaccine for your girls just yet.

32 dead girls from the vaccine?  Mr. Simpson fails to tell the whole story.  Here’s what CDC actually said:

As of December 31, 2008, there have been 32 U.S. reports of death among females who have received the vaccine. There was no common pattern to the deaths that would suggest that they were caused by the vaccine. [emphasis added]

This isn’t the first time opponents of Gardasil have failed to report accurately the deaths accounted for in the trials and use of the drug.  In previous outings, critics of the drug have done such bizarre things as counting deaths of people who never took the drug, as deaths perhaps caused by the drug.

For example, from the numbers available when I wrote about this in May 2007:

  • Of the 17 deaths reported in the clinical trials,  7 of them came from the placebo group.  That’s right:  Only 59% of the reported deaths were in the group that got Gardasil.  41% of the reported deaths came from people who had received no Gardasil vaccine.
  • 7 of the deaths were from auto accidents, 4 in the Gardasil group, 3 in the placebo group.
  • Most of the deaths were from causes generally thought to be unrelated to to Gardasil, including suicide and cancer.

Don’t you think that, in blaming deaths on a dosage of a vaccine, one should not count deaths to people who did not get the vaccine? So, can we trust numbers from a slander campaign that keeps repeating falsehoods for two years, though the data are freely available?

If you check the Gardasil site now, you’ll find more deaths have been added.  Merck follows up reports of problems, and they update the information when they can, as required by law.

There are now 24 deaths reported in Merck’s literature, 16 in the Gardasil group, and 9 in the control group; the Gardasil deaths have risen to 64% of total deaths; some new causes are added in.  But there is no glaring indictment of Gardasil, and it still seems to me to be rather unethical to claim, as Simpson’s source does, that deaths by auto accident can be attributable to Gardasil, especially when an almost equal number of auto accident deaths occurred in the control group.

Here is what the CDC says, unedited:

Reports to VAERS Following HPV Vaccination

As of December 31, 2008, more than 23 million doses of Gardasil were distributed in the United States.

As of December 31, 2008, there were 11,916 VAERS reports of adverse events following Gardasil vaccination in the United States. Of these reports, 94% were reports of events considered to be non-serious, and 6% were reports of events considered to be serious.

Based on all of the information we have today, CDC continues to recommend Gardasil vaccination for the prevention of 4 types of HPV. As with all approved vaccines, CDC and FDA will continue to closely monitor the safety of Gardasil.  Any problems detected with this vaccine will be reported to health officials, healthcare providers, and the public, and needed action will be taken to ensure the public’s health and safety.

23 million doses of the vaccine, high efficacy in preventing cancer and genital warts, only 6% serious events reported, no deaths that doctors can connect to the vaccine.

In the time Simpson writes about, several thousand women died of cervical cancer; he’s posing 32 deaths unrelated to the vaccine and saying it’s dangerous, when the facts show exactly the opposite.  Is that ethical?

It’s creationism syndrome:  Religionists decide on their conclusions, sometimes supported by scripture, but sometimes also supported by misreadings of scripture; then they set off in search of evidence to support their pre-conceived conclusion, and they step over real data and alter evidence to make sure their pre-conceived conclusions get the support.

In other words, they use doctored data.  Neil Simpson’s sources are using doctored data again.  Shame on them.  I’m sure he’ll correct it in his blog.

______________

Update, May 3: Simpson has not corrected his blog yet.  As an indicator of the issues at stake, you may want to look at CDC figures on cervical cancers, many of which are prevented completely by Gardasil.  Actually trends on the disease are encouraging:

Cervical cancer used to be the leading cause of cancer death for women in the United States. However, in the past 40 years, the number of cases of cervical cancer and the number of deaths from cervical cancer have decreased significantly. This decline largely is the result of many women getting regular Pap tests, which can find cervical precancer before it turns into cancer.1

According to the U.S. Cancer Statistics: 2005 Incidence and Mortality Web site, 11,999 women in the U.S. were told that they had cervical cancer in 2005,* and 3,924 women died from the disease.2 It is estimated that more than $2 billion is spent on the treatment of cervical cancer per year in the U.S.3

Cervical cancer strikes disproportionately at minority women:

Even though these trends suggest that cervical cancer incidence and mortality continue to decrease significantly overall, and for women in some racial and ethnic populations, the rates are considerably higher among Hispanic and African-American women. Find more information about cervical cancer rates by race and ethnicity.

More information:


Great discoveries at Four Stone Hearth 65

April 27, 2009

Okay, now Four Stone Hearth can apply for Social Security.  It has come of age.

Seriously, FSH 65, hosted by Primate of Modern Aspect, continues the tradition of that particular carnival with great links to great research, in anthropology, archaeology, and linguistics.

Hobbits?  Chimps?  Linguistics? Brains?   It’s all there.  Go see.


World Malaria Day brings out the DDT-poisoned claims – Beware the ill-informed cynics.

April 26, 2009

World Malaria Day is April 25, every year.  It’s not a big deal in the U.S. (but there were several activities this year).  One thing you can count on, however, is the unthinking, often irrational reaction of dozens of columnists and bloggers* who like to think all scientists and health care professionals are idiots, and that government policy makers never consider the lives of their constituents when environmental issues arise.

Here’s a good example:  At a blog named Penraker, in a post cynically titled “Beware the ‘compassionate’ people,” the author suggests that churches around the world are foolish for sending bednets to Africa to combat malaria, since, the blogger claims, DDT would be quicker, more effective, cheaper, and perfectly safe.

So  much error, so little time, and even less patience with people who don’t bother to get informed about an issue before popping off on it.

Penraker wrote:

Today the loopy “On Faith” pages of the Washington Post reminds us to be compassionate about malaria in Africa.

It urges the churches of the world to come together and join a campaign that would spread the use of mosquito nets in Africa so that the incidence of malaria can be gradually reduced.

Nets are a great idea.  They work to reduce malaria by 50% to 85%.  Nets are a simple solution, part of a series of actions that could help eliminate malaria as a major scourge of the world.  The Nothing But Nets Campaign has the endorsement of several major religious sects and the National Basketball Association.  It offers hope.

Churches uniting to save lives — what could be more spiritual?

Currently 750 children die EVERY DAY in Nigeria. So the great hearts on the left want to organize another conference. The conference will demonstrate their compassion for this needless death, and it will urge that mosquito nets be distributed more widely in Africa.

There is only one problem. Nowhere in the article do they mention DDT. DDT is far and away the most effective way to get rid of malaria.

Why should the article “mention” DDT?  DDT is a deadly poison, an environmental wildcard that once upon a time was thought to offer hope of severely reducing malaria, if it could be applied in enough places quickly enough, before mosquitoes developed resistance to it.  The campaign, coordinated by the World Health Organization, failed.  Agricultural and business interests also latched onto DDT, but they over-used it in sometimes trivial applications.  Mosquitoes quickly developed new genes that made them resistant and immune to DDT.

DDT can once again play a limited role in fighting malaria.  It can be used in extremely limited amounts, to spray the inside walls of homes, to kill mosquitoes that still land on the walls of a hut after feeding on a human.  But DDT is not appropriate for all such applications, and it is nearly useless in some applications, especially where the species involved is completely immune to DDT.

DDT was discovered to be deadly.  First European nations banned its use, and then the U.S. banned it.  Continued use after those bans increased the difficulties — manufacturing continued in the U.S. resulted in many nasty Superfund clean-up sites costing American taxpayers billions of dollars when manufacturers declared bankruptcy rather than clean up their plant sites.  The National Academy of Sciences studied DDT, and in 1980 pronounced it one of the most beneficial chemicals ever discovered — but also one of the most dangerous.  NAS said DDT had to be phased out, because the dangers more than offset its benefits.

The cessation of use of DDT, to protect wildlife and entire ecosystems, proved wise.  In 2007 the bald eagle was removed from the list of endangered species, a recovery made possible only with a ban on DDT.  DDT weakens chicks, especially of top predators, and damages eggs to make them unviable.  Decreasing amounts of DDT in the tissues of birds meant recovery of the eagle, the brown pelican, the peregrine falcon, and osprey.

Though it was not banned for ill effects on human health, research since 1972 strengthened the case that DDT is a human carcinogen (every cancer-fighting agency on Earth lists it as a “probable human carcinogen”).  DDT and its daughter products have since been discovered to act as endocrine disruptors, doing serious damage to the sexual organs of birds, fish, lizards and mammals.  Oddly, it’s also been discovered to be poisonous to some plants.

After DDT use against malarial mosquitoes was reduced, malaria stayed low for a while.  Unfortunately, the malaria parasites developed resistance to the pharmaceuticals used to treat humans.  Malaria came roaring back — DDT, an insecticide, was of no use to fight the blood parasite.  Newer, arteminisin-based pharmaceuticals offer hope of reducing the human toll

Still, with some improvements in delivery of pharmaceuticals, improvements in diagnosis, and improvements in education of affected populations about how they can reduce exposure and prevent mosquito breeding, world wide malaria deaths have been kept below 3 million annually.  Recent programs, helped by munificent organizing from the Bill and Melinda Gates Foundation, and from other charities, have reduced malaria considerably.  With no magic drug on the horizon, with no magic vector control, efforts have been redoubled to use the time-tested methods for beating the disease — reducing exposure to mosquitoes, improving health care, stopping mosquito breeding.  These methods, which ridded the U.S. of the disease very much prior to the discovery of DDT’s insecticidal properties, appear the best bets to beat malaria.

Once South Africa started using it, the death rate went way down.

South Africa used DDT constantly from 1946 through about 1996.  Other efforts to control mosquitoes worked until changing climate and political turmoil in nations adjoining South Africa produced malaria and mosquitoes that crossed borders.  South Africa turned to DDT as an emergency  measure; but the other, non-pesticide spraying methods, are credited with helping South Africa reduce malaria.

It turns out that DDT is much less harmful than we had been led to believe by scare reports early on. People at the Monsanto plant in California worked around the stuff for years with no discernible effects.

That’s not quite accurate.  Whether DDT seriously crippled workers is still in litigation, a quarter of a century after DDT stopped being manufactured in the U.S. Residual and permanent health damage keep showing up in studies done on workers in DDT production facilities, and on their children.  The Montrose plant in California is a Superfund site, as is the entire bay it contaminated.  In fact, three different bays in California are listed as cleanup sites (was there a Monsanto DDT plant in California?  Which one?).

To say there were “no discernible effects” simply is unsupportable from research or litigation on the matters.  Such a claim is completely misleading and inaccurate.

No matter. The compassionate ones don’t dare to mention it. They are ready to let 750 kids die every day, in Nigeria alone. That’s 273,000 a year.

273,000 kids a year are dying in Nigeria alone. Think about it.

Rachel Carson warned us that would happen if we didn’t control DDT use to keep it viable to fight malaria.  I’ve been thinking about it for more than 40 years.  The “compassionate” ones you try to ridicule have been fighting malaria in Africa for that entire time.  You just woke up — when are you going to do something to stop a kid from dying?  By the way, slamming environmentalists doesn’t save any kid.

The CDC says:

The World Health Organization estimates that each year 300-500 million cases of malaria occur and more than 1 million people die of malaria, especially in developing countries. Most deaths occur in young children. For example, in Africa, a child dies from malaria every 30 seconds. Because malaria causes so much illness and death, the disease is a great drain on many national economies. Since many countries with malaria are already among the poorer nations, the disease maintains a vicious cycle of disease and poverty.

Still the compassionate ones call for the use of bed netting to keep the kids from getting bit. There is only one obvious problem – kids aren’t in bed all day. Mosquitoes can bite them all day long, and the nets have no effect. So, they are proposing a massively stupid remedy.

First point on that section:  Did you bother to read the CDC document?  Nowhere do they call for DDT to be used.  Quite the contrary, they note that it doesn’t work anymore:

Wasn’t malaria eradicated years ago?

No, not in all parts of the world. Malaria has been eradicated from many developed countries with temperate climates. However, the disease remains a major health problem in many developing countries, in tropical and subtropical parts of the world.

An eradication campaign was started in the 1950s, but it failed globally because of problems including the resistance of mosquitoes to insecticides used to kill them, the resistance of malaria parasites to drugs used to treat them, and administrative issues. In addition, the eradication campaign never involved most of Africa, where malaria is the most common.

So, where do you get the gall to claim CDC support for your inaccurate diatribe?  CDC’s documents do not support your outrageous and inaccurate claims for DDT at all.

Second point, mosquitoes don’t bite all day long, and bednets have proven remarkably effective at stopping malaria.  Mosquitoes — at least the vectors that carry malaria — bite in the evening and night, mostly.  Protecting kids while they sleep is among the best ways to prevent malaria.

It appears to me that this blogger has not bothered to learn much about malaria before deciding he knows better than the experts, how to fight it.

Their outrageous and horribly unscientific “religious beliefs” are a firm block to their humanity. No, they just don’t care. No DDT can be used.

Every “ban” on DDT included a clause allowing use against malaria.  In the U.S. we allowed manufacture of DDT for export after the ban on use in the U.S. (and the ban on use in the U.S. had exceptions).  DDT was never banned for use in any African nation I can find.  DDT is manufactured, today, in India and China.  DDT can be used, even under the POPs treaty.  This blogger, Penraker,  just doesn’t have the facts.

You get the impression that their compassion is not about solving the problem. Their compassion seems to be about themselves – about proving they are good people by having compassion, rather than eradicating the problem. In fact, it looks like they have a desire to have the malaria epidemic continue, so they can organize little conferences and wring their hands, put together action plans, and call on somebody else to do something about the problem.

Actually, I get the idea that this blogger wants to whine and pose, and isn’t really concerned about kids with malaria.  He’s getting way too many facts dead wrong.

Nick Kristof of the New York Times, God bless him, is one of the few liberals to react reasonably to reality:

Mosquitoes kill 20 times more people each year than the tsunami did, and in the long war between humans and mosquitoes it looks as if mosquitoes are winning.

One reason is that the U.S. and other rich countries are siding with the mosquitoes against the world’s poor – by opposing the use of DDT.

“It’s a colossal tragedy,” says Donald Roberts, a professor of tropical public health at Uniformed Services University of the Health Sciences. “And it’s embroiled in environmental politics and incompetent bureaucracies.”

In the 1950’s, 60’s and early 70’s, DDT was used to reduce malaria around the world, even eliminating it in places like Taiwan. But then the growing recognition of the harm DDT can cause in the environment – threatening the extinction of the bald eagle, for example – led DDT to be banned in the West and stigmatized worldwide. Ever since, malaria has been on the rise.

…But most Western aid agencies will not pay for anti-malarial programs that use DDT, and that pretty much ensures that DDT won’t be used. Instead, the U.N. and Western donors encourage use of insecticide-treated bed nets and medicine to cure malaria

Yeah, go read that Kristof article.  He’s a bit off about DDT — but notice especially the date.  It’s the Bush administration he’s complaining about. I thought Penraker was complaining about environmentalists and silly “compassionate” types — but he’s complaining about Bush?  What else isn’t he telling us, or doesn’t he know?

But isn’t it dangerous?

But overall, one of the best ways to protect people is to spray the inside of a hut, about once a year, with DDT. This uses tiny amounts of DDT – 450,000 people can be protected with the same amount that was applied in the 1960’s to a single 1,000-acre American cotton farm.

Is it safe? DDT was sprayed in America in the 1950’s as children played in the spray, and up to 80,000 tons a year were sprayed on American crops. There is some research suggesting that it could lead to premature births, but humans are far better off exposed to DDT than exposed to malaria.

Indoor Residual Spraying (IRS) is endorsed even by Environmental Defense, the group that first sued to stop broadcast DDT spraying in the U.S.  It’s not environmentalists who oppose the practice, but businessmen, tobacco farmers and cotton farmers in Africa.  Who is Penraker to substitute his judgment for the judgment of Africans, the people on the ground, the people who suffer from malaria?

Alas, IRS, done right, is expensive.  A treatment with DDT is required twice a year, at about $12 an application when costs of the analysis of the mosquitoes and other circumstances are figured in.  That’s $24/year.  DDT spraying is more than 50% effective in preventing the disease.

Bednets cost $10, last five years at least, and are about 85% effective at preventing the disease.

Maybe Africans just want the cheaper, more effective methods used.  Doesn’t that make sense?

The piece in the Washington Post’s On Faith section is called “Religion from the Heart”

How ironic.

All the Washington Post and the New York Times would have to do is highlight that the use of DDT could save a million lives – most of them children, and they would be saved within a year.

That’s all they would have to do. Keep the spotlight on it, and save a million lives. Instead, they expunge the very idea from their pages, (witness this from the heart stuff)

I will never understand people who are willing to let millions of people die for the sake of their ideology.

And I will never understand people who get in a dudgeon, blaming people who are blameless, or worse, blaming people who are actually trying to fix a problem, all while being blissfully misinformed about the problem they complain about.

Yes, millions of lives could be saved — but not with DDT.  DDT won’t work as a magic potion, and it’s a nasty poison.  Why would anyone urge Africans to waste money, and lives, instead of actually fighting malaria?  Penraker fell victim to the hoaxers who want you to believe Rachel Carson was not accurate (her book was found accurate by specially-appointed panels of scientists), that DDT is a panacea against malaria (it’s not), that environmentalists are stupid  and mean (while they’ve been fighting against malaria for more than 40 years), and that everything you’ve heard from science is wrong.

Malaria gets a lot of deserved attention from people serious about beating the disease, for millions of good reasons.  Those who are serious about beating malaria don’t whine about DDT.

And then he brags about his intolerance for the facts.  Whom God destroys, He first makes mad.

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Update: Blue Marble isn’t as offensive and obstreperous as others, but equally in error.  How can people be so easily misled from the facts of the matter?


Texas Forest Expo!

April 25, 2009

Are you out near Conroe on Sunday? April 26 is the third (and last) day of Texas Forest Expo 2009 at the Conroe Convention Center.

It’s free.  It’s kid friendly ( a great place to take Cub Scouts or a group of Boy Scouts working on the Forestry merit badge).  I’d be there if I could.

Get your name on the mailing list for notice for next year’s expo.


Creationist hypocrisy. Film at 11:00

April 22, 2009

Under the ironic headline, “Why is critical evaluation of Darwinism not allowed in the public square?” Wintery Knight‘s blog has a bold, typically inaccurate defense of the bullying tactics of ID advocates.

But critical evaluation?  Just try to post a comment critical of intelligent design.

Why are ID advocates almost to a person such supreme hypocrites, and unintentional clowns?  Is there a law that says one must be a noob to be an ID advocate?

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Update, May 3: Here’s my challenge to you, dear reader:  See if you can post a comment at all at Wintery Knight’s rant. Post a copy of your comments here, too, and let’s count to see whether this fellow is just one more supreme, Pharisaical hypocrite, or just an incompetent blogger.