DDT ain’t pixie dust; we can’t poison Africa to health

February 7, 2009

Internet communications spreads information far and wide, but it also spreads disinformation and error far and wide — sometimes faster than good information.

Bill Gates gave a TED* Talk about the need to fight malaria, and where his billions-of-dollars campaign against the disease is going.  Within minutes, the nattering nabobs science ignorance were calling Gates an idiot, and calling for the poisoning of Africa.

Gates, you may remember, is either the richest man in the world or close to it due to his brilliant marketing of Microsoft products.  This would suggest to rational people that he is not an idiot, at a minimum, and perhaps should be listened to on topics which he has researched, such as malaria and mosquitoes.   Africa, you may remember, has a lot of people in it who don’t want to be poisoned, thank you very much. This may suggest that DDT would be controversial even were it a panacea, which it is not.

Rational voices exist.  Deltoid and Bug Girl both provided useful, and accurate information (though in this case, Tim Lambert at Deltoid refers to the DDT controversy on bed bugs, and to another Bug Girl post on research showing DDT won’t help against bed bugs).

Here’s the controversial two minutes of Gates’s talk (you can see it at Bug Girl, too):

Internet and other media now fall into a predictable rhythm:  Any news faintly related to DDT prompts stiff-necked conservatives and other do-nothings who don’t like environmentalists to write stuff calling for a “return” of DDT, making erroneous claims that DDT had made the world safe against malaria, and that only the delusional claims of Rachel Carson convinced everyone to stupidly stop spraying DDT.  And, of course, they then make the erroneous claim that all we need to do to fix everything is bring back DDT.

They don’t ever let the facts get in the way of a stupid, misplaced political hit.

In short, they treat DDT as pixie dust, a magic solution to every problem.  This is fantasy.  In reality, we cannot poison Africa to good health.

I’ve written about these issues before at length.  Hard research, good research, tells us what we have to do to fight malaria

  • Money must be spent to improve health care in Africa, especially to remote populations. Wiping out malaria requires that we get rid of the parasite in humans.  Mosquitoes get the parasite from infected humans, after all — if mosquitoes can’t get infected from humans, we don’t need to worry so much about killing the mosquitoes.  Preventing infections is good; curing those that exist is essential.  Malaria parasites’ ability to grow resistance to pharmaceuticals means we need health care delivery systems that will assure a complete cycle of medical treatment occurs in every victim, and before that, that a quick and accurate diagnosis will allow targeting of the right drug to the specific parasite.
  • Housing improvements will provide huge benefits. Malaria was wiped out in the U.S. and Europe partly by rising incomes.  Even poor people could afford screens on windows, which keeps mosquitoes out of the house, where most infections start.  Housing unsuitable to screening will put a larger burden on bednets.  But better housing is a key part of the fight.
  • Improving incomes help fight malaria. Families with more money can afford better housing, and better health care.  Malaria, and most disease, is very much an “Are Your Lights On” sort of problem.  Victims are the first to know they need to get medical care, and they are in the best position to prevent infections earlier.  If potential victims have the money to buy the tools to fight malaria, malaria has a tough time.
  • Good public works, from local governments, help fight malaria. Good roads work well to fight the disease.  Bad roads develop potholes.  In Africa, potholes fill with water and become breeding sites for mosquitoes.  Well-engineered, well-maintained roads and walkways make great contributions to eliminating malaria.
  • Education on how to avoid malaria pays huge dividends. People who know how to look for mosquito breeding places, and how to eliminate them, are crucial to the elimination of the disease.  Abandoned tires are classic mosquito breeding dumps, but so are rain gutters and even badly-drained flower pots.  When these things occur close to homes, mosquitoes breed there and bite victims close to home.  Since most people spend a signficant amount of time at or near their homes, eliminating these infection opportunities pays off well.  Further, certain breeds of mosquitoes are active at particular hours of the day or night.  Avoiding the places these breeds exist at the hours of their activity prevents malaria infection.  People must be educated to know these things, and to act on them.
  • Bednets work well, and bednets do not prevent the use of other methods. Pitting a fight against bednets and DDT is a favored tactic of pro-DDT groups.  Research shows bednets are very effective without DDT, but that DDT is not effective over the long term without bednets.  A mild solution of DDT applied to bednets in some areas improves the efficiency of the nets.  This is not an one-or-the-other issue.  Bednets always work, insecticides can be used appropriately.  To beat malaria, we will have to use every tool.  Bednets are a great tool, and they will be required regardless the availability or propriety of DDT.

The Bill and Melinda Gates Foundation stepped in to provide money and organization to the fight against malaria a few years ago.  In the last year alone his work and his money have helped prevent millions of cases of malaria, reducing the incidence of the disease by 50 percent in some areas, and 85 percent in others.  Whatever he says about malaria and mosquitoes deserves a good listen at least.

(Until I figure out how to embed TED into the new WordPress, here’s the link at TEDS:  http://www.ted.com/talks/view/id/451)

__________

*  TED is an acronym for Technology, Entertainment, Design


Suicide attempt with DDT

January 31, 2009

DDT advocates argue that DDT is harmless to humans.  Generally they base the claim on DDT’s low carcinogenicity in humans — it’s suspected of being a weak human carcinogen.

Frequently DDT advocates will point to the late Dr. Gordon Edwards’ grandstand sipping of a teaspoon of prepared DDT before lectures on the stuff.

Hard reality:  It’s a poison.  Comes this report from the Times of India:  A despondent woman tried suicide by DDT.  DDT is indeed a poison for humans.

The woman is in serious condition in a hospital.

AMRELI: The spate of suicides in the diamond industry continued as the wife of a diamond worker attempted suicide on Wednesday in Mini Kasbavad area of the city. Ruksana Pathan, 33, is battling for life at the government hospital here.

According to officials of Amreli police, Ruksana tried to end her life by consuming DDT powder when her husband and four children were away. She was rushed to the hospital here, where her condition is slated to be serious.

“Ruksana was depressed ever since her husband Taufiq Pathan, a diamond worker, was rendered unemployed after closure of diamond units,” said a police official. “As the family’s financial situation worsened, Ruksana attempted to kill herself,” the official said.

Kids, don’t try the Gordon Edwards stunt.  DDT is poisonous, as the skull and crossbones on the old label would indicate.


I get e-mail from DDT cranks . . .

January 3, 2009

I noted the errors in a post at Reformed Musings.  Then I noodled around Mr. Mattes’s site,  and I dropped this note into his “about” thread, frustrated that I couldn’t just politely note the errors at his posts, where he’s disabled comments.

I said:

I wish you’d take comments on your posts. For example, you’ve got a couple of errors dealing with DDT in your post on climate change. It looks as though you’re hoping to sneak them past readers, rather than get the science right. I hope that’s not so.  By: Ed Darrell on December 31, 2008 at 7:41 pm

Mattes held that comment in moderation (afraid to let his other readers see it?), but responded in sort by diving deeper into wankery, with a post defending the more crackpot ideas of Michael Crichton, and straying much farther from the science in his claims about DDT and environmenta protection.  Heck, he even trotted out errors about Paul Ehrlich’s writing, apparently not content to be wrong about only DDT and global warming.

So, noting Mattes’s aggravation of his errors, I wrote again on his blog, a bit more sternly:

Shame on you. If you really think DDT is safe and that there was no science behind its “ban,” open comments, let us discuss.

But to compound your errors, and then to fail to approve comments from those who offer you correct information — well, reformation only goes so far, I guess.  By: Ed Darrell on January 2, 2009 at 11:56 am

Rather than open comments to discuss, and rather than respond to the post at the Bathtub, he sent me e-mail:

Shame on me? Excuse me, but I’m a bit amazed at your arrogance. You’ll offer correct information? Why, because others have a different opinion than you they have to be wrong? What are your technical qualifications and applicable experience, besides having a blog and a keyboard? Have you been to Africa? I have. Is racial eugenics your thing? Is that why third-world inhabitants are expendable to you?

Whatever you think you know, DDT is being successfully employed in Africa and elsewhere to save lives every day. No bad effects evident.  None. Their public health officials are literally begging for more. But then, their only agenda is survival. Selective and misleading reporting doesn’t interest them, only results.

Did Mattes miss many of the Tinfoil Hat Brigade’s concerns?

For the record, I don’t share Mattes’s fascination with eugenics as applied to race (and I’ll wager Mattes has no record fighting it); that tends to be a concern of the anti-science, historical revisionists (wrong about history, too).  I said nothing disparaging about third world peoples, and there are a dozen or more posts here to confirm my concerns about health in the third world, in contrast to only the junk science, “Let’s poison the hell out of Africa” attitude from Mattes.

In his second paragraph, he contradicts one of the main points of his first post. He says DDT is being used successfully in Africa — while his first post complained that environmentalists had successfully stopped it from being used.

That’s rather the mark of the true DDT sycophant, someone who suffers seriously from internet DDT poisoning:  The only reason they mention DDT is to find a cudgel to use against brave and smart women like Rachel Carson, or otherwise to criticize people who call for an end to pollution, or the preservation of water, air, trees or animals.  Unanchored by any fact or any need or desire to be accurate, they attack environmenalists, damn the inconsistency of the attacks.

Oy.

He’s followed up today with a new post that assaults science at every turn, claiming to follow science journals, but instead citing the chemical industry supporters like Richard Tren, opposing the Centers for Disease Control and World Health Organization.  While complaining about “eco-socialism,” he approvingly cites the experts of Lyndon Larouche, the late Dr. Gordon Edwards, in all of his errors and all of the political wankery of Larouche.

Mattes has gone back to the false claims that Edmund Sweeney exhonerated DDT, and that “evil” William Ruckelshaus banned DDT anyway — completely murdering Sweeney’s analysis and the law behind it, and completely avoiding the law, the court cases, and the history behind Ruckleshaus’s actions.

In his frantic, apoplectic dance to avoid discussing whether he might be in error, Mattes has dived so deeply into the depths of tinfoil hat sourcery (no, it’s spelled as I intended it) that in the end, he’s not jus twrong, he’s not even wrong.

If someone criticized any translation of the Bible as carelessly and wildly as Mattes criticizes science, he’d be out recruiting neighbors with pitchforks and torches to march.

Mattes claims he’s done with the issue.  We can only hope.  To continue in his current trend, he’d need to deny gravity (both Newton and Einstein), atomic theory, and Linneaus.  But I also suppose it means he’ll never check here to see the facts.  Just when we thought we were making progress . . .

The real story about DDT, a few of the posts at Millard Fillmore’s Bathtub:

The real story, elsewhere:

At Bug Girl’s Blog:

At Deltoid:

Also:


DDT falsehoods, taken as an article of faith

December 31, 2008

Brown pelican egg rendered uncapable of protecting the (now dead) chick when DDT prevented the mother pelican from forming an adequate shell for the egg.

Brown pelican egg rendered uncapable of protecting the (now dead) chick when DDT prevented the mother pelican from forming an adequate shell for the egg. Pelican Media image.

Just when you start thinking the world is safe for the facts — safe for the truth — some well-meaning-but-poorly-informed person comes along to remind you that it’s a constant struggle to keep the flame of truth from being snuffed out for no good reason.

Henry I. Miller didn’t publish a screed demanding DDT be misused against West Nile virus this year, which I count as a major victory.  As you know, DDT is the wrong stuff to use to fight West Nile, so calling for DDT in that case merely means you’re an ideologue who wants to slam science, and it probably means you wish disease victims would hurry up and die.  (“More statistics to use against libruls!”)

Henry I. Miller. How many years at the Hoover Institute before he finds the library at Stanford to check his claims on DDT?

Henry I. Miller. How many years at the Hoover Institute before he finds the library at Stanford to check his claims on DDT?

And even Oklahoma’s reigning Senate fool Tom Coburn lifted his hold on the bill naming for Rachel Carson the post office in her hometown.

But, on the second to last day of the year, comes Bob Mattes at Reformed Musings, to claim that climate change is a hoax, and say he knows it’s so because DDT is safe and Rachel Carson was wrong. Mattes is a deacon in a Presbyterian church in Virginia; the name of his site is a reference to reformed theology, I gather.

When someone claims as a matter of faith, things that are well known to be wrong and easily debunked, that someone is unlikely to be swayed by the facts. In fact, Mattes allows no criticism of his post at his blog — he’s turned off comments on that post.

Will he drop by here to read his errors?  Not likely.  Would he correct the errors if he knew?  It’s not good to gamble when the odds are long against you.

Reformed Musings said:

Want a concrete example of the impact of eco-socialism? Three letters – DDT.

Well, no, I don’t want an alleged example of eco-socialism from an eco-fascist, one whose mind is made up, incorrectly, and who will not let the facts sway him.  Notice that the authority he cites is that well-known purveyor of junk science, Junk Science, the ethically-challenged website run by the industry campaign in favor of DDT.  If one dances to the devil’s tune, one should not claim not to be doing the devil’s work.

If this be eco-socialism, it’s God-blessed, and we should revel in it and make the most of it.

In the 60’s, there was the big DDT scare, with activists claiming that the pesticide was killing off our birds and bees.

Right.  And it was true, DDT was killing our birds and bees.  It took more than 30 years of not using DDT to rescue our national symbol, the bald eagle, from DDT’s killer effects.  Is it fair to call it a “scare” if it’s true?

Rachel Carson sold the big lie in her famous book Silent Spring, which was full of misrepresentations.

See, here’s how we know Mattes doesn’t know what he’s talking about, and probably hasn’t read the book.  Carson was very careful in her book.  She offered more than 50 pages of citations to science papers and hard research to support what she wrote — a “don’t take my word for it, check it out for yourself” kind of honesty.

Discover magazine carried an article about DDT and Carson’s book in November 2007Discover said that, since 1962, more than 1,000 peer-reviewed publications support Carson’s conclusions, a record remarkable in any branch of science.

In fact, Carson may have underestimated the impact of DDT on birds, says Michael Fry, an avian toxicologist and director of the American Bird Conservancy’s pesticides and birds program. She was not aware that DDT—or rather its metabolite, DDE—causes eggshell thinning because the data were not published until the late 1960s and early 1970s. It was eggshell thinning that devastated fish-eating birds and birds of prey, says Fry, and this effect is well documented in a report (pdf) on DDT published in 2002 by the Department of Health and Human Services’ Agency for Toxic Substances and Disease Registry (ATSDR). The report, which cites over 1,000 references, also describes how DDT and its breakdown products accumulate in the tissues of animals high up on terrestrial and aquatic food chains—a process that induced reproductive and neurological defects in birds and fish.

Had Mattes been paying attention (was he even alive then?), he’d have noted that President John F. Kennedy tasked the President’s Science Advisory Council to check out Carson’s book, to see whether it was accurate, and whether the government should start down the path of careful study and careful regulation of pesticides as she suggested.  In May 1963 the PSAC reported back that Carson was dead right on every issue, except, maybe for one.  PSAC said Carson wasn’t alarmist enough, that immediate action against pesticides was justified, rather than waiting for later studies or delaying for any other reason.

So, here I issue a challenge to Bob Mattes:  Tell us where Rachel Carson was wrong.  Cite for us a page in Silent Spring where she made a significant error in science, a point that has not been borne out as correct in later studies.

I’ve been making this challenge for a year and half now, and not even Stephen Milloy has been able to offer a single error Carson made.  A few have said they “heard” Carson erred in one thing or another, but upon checking, we’ve always found that the claimed errors were nowhere to be found, or the errors alleged were misstated, or, more often, what was claimed as error simply was not.

It’s a very odd situation:  We have a deacon of the Presbyterians assaulting the honor of a distinguished scientist, using false claims as his ammunition.

As usual, the ignorant entertainment industry frothed at the mouth for the new fad cause. Joni Mitchell sang: “Hey, farmer, farmer, put away that DDT now. Give me spots on my apples but leave me the birds and the bees.” Cute, huh?

As a result, DDT was banned world-wide. Problem was, not only were the zealots wrong, but nothing killed deadly malaria-carrying mosquitoes better than DDT.

DDT has never been banned worldwide.  It’s still manufactured in several places — it’s still a deadly hazard in India.  It’s been in constant use in many nations, such as Mexico and South Africa.  Limitations on DDT use have always included a loophole allowing DDT to be used to protect against malaria — even the 2001 Persistant Organic Pesticides Treaty has a special clause allowing DDT to be used against malaria.

So it’s false to claim that DDT was banned worldwide, ever.  We might be much better to get to that position because it would keep nuts from claiming that all we have to do is poison Africa to make Aricans healthy — but in any case, there is no ban on DDT to fight malaria.

Use of DDT began to decline in the mid 1960s when mosquitoes began to exhibit resistance and even immunity to the stuff.  Genetic studies now find that almost all mosquitoes in the world have multiple copies of a gene that allows the bug to digest DDT more as a nutrient, rendering it ineffective as a pesticide.  The World Health Organization had begun an ambitious campaign to knock down mosquito populations long enough that malaria would die out; but by the mid 1960s, the burgeoning resistance to DDT rendered that campaign untenable.  DDT use against mosquitoes, which was never undertaken in much of Africa because some local governments were not stable enough to manage an anti-mosquito campaign, declined, and stopped in places where DDT simply did not work.

In fact it was gross overuse of DDT by agricultural interests that drove the resistance among insects.  Had that overuse been controlled earlier, we might have been able to kill of malaria.  It was not a ban on DDT that caused its use to decline.  It was that DDT stopped working.  No one in their right mind will spend money on a pesticide that doesn’t work, no matter how cheap the stuff is.

But it wasn’t popular culture that got DDT banned.  In the late 1960s litigation on DDT spraying worked through the courts.  By 1972, two federal courts ruled in separate cases that the federal government had failed to carry out its obligations to control the use of DDT as required by law, based on evidence presented in court that demonstrated clear harm.  Both courts ordered the government to promptly hold the administrative hearings necessary to alter the registration for DDT.  The hearings started in the Department of Agriculture, which moved slowly.  When the Environmental Protection Agency (EPA) was created, it got the authority to regulate pesticides from Ag.  The courts ordered EPA to get off its duff and speed the process.

In the midst of a nine-month-long hearing process that accumulated thousands of pages of scientific documentation of the harms of DDT, manufacturers of the pesticide voluntarily changed their labels to limit use of DDT essentially to emergency situations, not general broadcast applications. Judge Edmund Sweeney, the EPA administrative law judge, thought that change, which was what was pending, meant that EPA did not need to act, and he so ruled at the end of the process.  EPA Administrator William Ruckleshaus, a veteran of more recent environmental litigation, understood the courts had ordered a more ironclad change, and he imposed tighter registration standards on DDT that prohibited its use on agricultural crops, except in emergencies.  There was also a loophole built in to protect public health.

DDT manufacturers sued EPA to overturn the rule.  The courts ruled that the scientific evidence was overwhelming, and that EPA’s rule was firmly grounded.  The manufacturers did not appeal further.  So, DDT use in the U.S. was severely restricted by the end of 1972, following earlier restrictiosn in Sweden.

Can Mattes read a calendar?  How does a ban on DDT in Sweden in 1970, in the U.S. in 1972, make Africa stop using DDT in 1965?

Literally millions of poor have needlessly died from malaria in Third World countries as a result of the ban. Malaria is the 4th leading cause of death in the world. Drug-resistant strains are starting to dominate. Eradication is the real answer. Only recently have countries like South Africa defied the ban and started spraying DDT again to fight malaria. Ideas have consequences – eco-socialism routinely kills, just not in the comfy apartments of the self-serving eco-socialists.

What ban is he talking about? South Africa suspended DDT use only briefly at the end of the 20th century — but South Africa’s problems are not caused because South African mosquitoes roared back when they were not sprayed wholesale with DDT.  Malaria in South Africa rose when the disease came over the border from other nations where the disease was less controlled.  South Africa brought back DDT use, though in a more limited fashion.  There was no ban to defy.  Mattes is telling a whopper here.

Mattes cites the Centers for Disease Control when he says malaria is the fourth leading killer in the world.  He either fails to notice or fails to say that CDC does not ask for DDT to be brought back to fight malaria.  CDC calls for bednets, for draining of breeding areas, for better medical care and better diagnosis, but not for more DDT.  Why?  When the leading disease fighting organization in the world does not ask for DDT, we might assume it puts DDT way down on its list of priorities (as it does).  Remember, CDC’s origins were in the fight against mosquito-borne diseases.  CDC speaks with authority on mosquito eradication.  CDC does not ask for more DDT, anywhere.  His own authority — he should listen to them.

Health care professionals note that malaria made a serious resurgence when the malaria parasites themselves became resistant to the pharmaceuticals used to treat them.  This has nothing to do with DDT, because DDT is not given as a drug to humans (it’s a poison, mildly carcinogenic, and there is no demonstrated effectiveness against the parasite).

Can Bob Mattes read a map?  How do restrictions on spraying DDT on cotton fields in Texas, cause malaria to increase in Africa?

Mattes closes his post:

History shows that the eco-socialists have NEVER been right. EVERY scare prediction they’ve ever tried fails to materialize. Unfortunately, history starts today for most folks. We don’t teach logic or real science in public schools anymore, just the religion of political correctness. Ignorance breeds disaster, especially for those in developing countries who can’t speak for themselves and don’t have a George Soros funding their latest fad cause. Remember DDT. Remember global cooling. Remember the limitations of computer modeling. Don’t be duped.

Except, the “eco-socialists” as Mattes mislabels them were right about DDT, they were right about malaria, they were right on the science about wildlife damage from DDT, and they were right on the history.

Ignorance does indeed breed disaster, which is where Mattes’s views will take us.  He should carefully consider his closing trio of words, and follow them religiously.

If Mattes is so wrong on every claim about DDT, do you think we should trust anything he says about climate change?

Updates:


Want to poison Boise? Apply within

December 23, 2008

Ada County, Idaho, is home to the state capital, Boise.

As with most county governments in the U.S., a lot of work is delegated to groups that are governed or advised by citizen boards.  Volunteers make up these boards.  In many municipalities, it’s difficult to recruit good citizens to do the work.

Perhaps Ada County is having difficulty getting volunteers to worry about mosquito abatement. Maybe that’s why the advertisement at the city’s unofficial “City Smart”  website urges unnecessary DDT poisoning of the town.

Tell Ada County What to Do

The Ada County Courthouse, in Boise Idaho.  HPB photo by LCA Architects

The Ada County Courthouse, in Boise Idaho. HPB photo by LCA Architects

Feeling disenfranchised? Not happy with how the elections turned out? Well, there is still a way for you to impact the body politic in Ada County—the County Board of Commissioners is calling for volunteers to serve as advisors on a number of boards.

The County Commissioners, Paul Woods, Rick Yzaguirre, and Fred Tilman, made the appeal for volunteer advisors in the most recent edition of Ada County’s monthly newsletter.

“The county has numerous volunteer boards and advisory committees that help the Ada County Board of Commissioners in policy development and general operations in areas ranging from housing, planning and zoning, social work and recreation. The unpaid volunteer positions give citizens a unique, insider look at county government while they roll up their sleeves to help their local community. While each board has its own bylaws and varying terms of service, interested parties are always encouraged to apply for a position on any volunteer board,” the county said.

The county went on to describe eight examples of boards that rely on volunteer participation, I’ve profiles the three coolest boards here.

Historic Preservation Council—Are you one of those folks that loves to see historical photos from Ada County’s storied past? Would you love to help identify sites of historical significance or help with education efforts? When then consider helping out with the Ada County Historic Preservation Council where, according to the county, “members must demonstrate an interest, competence, or knowledge in history or historic preservation” and can have a positive effect on how the county coordinates its preservation activities.

Mosquito Abatement Advisory Board—I’m a huge advocate for bringing back DDT (dichloro-diphenyl-trichloroethane) that insecticide extraordinaire which got a bad rap in the 1960’s when it was panned in Rachel Carson’s inaccurate book, Silent Spring. Turns out that DDT is safe for humans and Silent Spring, “contains certain statements at variance with the facts as we now understand them”, as Cecil Adams so eloquently put it in his The Straight Dope column from December 13, 2002. If you feel like I do about slaughtering mosquitoes and ending West Nile Virus in Idaho, then consider volunteering for the Ada County Mosquito Abatement Advisory Board wherein you can meet to discuss our collective war on these blood-sucking bugs. If you are a mosquito-lover who thinks bugs are people too, I would not recommend this board for you. [emphasis added]

Board of Community Guardians—Finally, if you have a heart for the disabled or the mentally ill, you might be the right sort of volunteer for this important board. According to the county, “The Board of Community Guardians manages the Community Guardian Program, which assists individuals who cannot make decisions for themselves because of mental and/or physical impairments or disabilities. These individuals, who are either legally incapacitated or destitute with no financial security or family support., can be determined a ward of the county, and court-appointed volunteers oversee those wards.

If you are interested in volunteering for any of these advisory boards contact:

Board of Ada County Commission office

200 W. Front St., Third Floor, Boise.

Even the vaunted Cecil Adams writes a clunker from time to time, and his agreement with the wholly unsupportable claim that Rachel Carson was wrong is one of those clunkers (but his description of Lyndon Larouche will make you smile).  The facts differ from the claim in this ad:

  1. DDT’s “bad rap” was well deserved.  In the past three years dozens of news articles matched the science journals commemorating the recovery of bald eagles, brown pelicans, osprey and pergrine falcons — recoveries made possible by ending the use of DDT in the wild.  DDT kills entire ecosystems, starting with the predators at the top.  It’s dangerous stuff.
  2. Rachel Carson’s book, Silent Spring, pioneered the use of good, hard scientific data in popular writing.  In its 53 pages of footnotes to scientific studies, science journals and correspondence, critics have been unable to find inaccuracies.  Especially on the issue of DDT’s effects on wildlife, more than a thousand follow-up studies vindicated Carson.  I have not found a contrary study, not one.
  3. DDT is NOT the pesticide of choice for West Nile, in any case.  It’s almost like arguing that DDT is the pharmaceutical of choice to use against malaria — confusing the pesticides used to kill insects with the pharmaceuticals used to treat disease in humans.  DDT is unsuitable for outdoor use, illegal for outdoor use under the 1958 Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) and its subsequent amendments because it is “uncontrollable.”  DDT kills non-target species, often better than it kills target species. For mosquito abatement, DDT kills mosquito predators much more effectively than it kills mosquitoes. Plus, it sticks around for years, and it bioaccumulates up food chains, multiplying poison doses to predators, sometimes millions of times.
    West Nile mosquitoes can be effectively treated as larva, if their water homes are known; but DDT is particularly ill-suited for use in water. DDT works best when its spread can be confined indoors, which is where malaria-carrying mosquitoes usually bite. West Nile carriers live and bite outdoors.

I hope Ada County gets volunteers for the mosquito abatement board who know a little bit more about DDT, or who are open to listening to the mosquito abatement experts.


Typewriter of the moment: Rachel Carson

December 14, 2008

From the library of Life Magazine images available for sale through an agreement with Google:  “Marine biologist and author Rachel Carson, 1952.”  Photo by Hank Walker.  [Photo no longer available at that site; this is the same image, I believe]

Rachel Carson in 1952.  Life Magazine photo by Hank Walker

This photo was taken about the time Carson left the U.S. Fish and Wildlife Service, about the time her best-selling book The Sea Around Us was a hit.  This was a decade before the publication of her most famous work, Silent Spring, and 12 years prior to her death from cancer in 1964.


Good Interred With Their Bones Dept.: Michael Crichton

November 24, 2008

https://i.ytimg.com/vi/9qtgQXtrl4Q/hqdefault.jpg

Author Michael Crichton railing against environmental protection and science he politically disagreed with, at the Smithsonian Institution, about the same time as his Commonwealth Club presentation.

One of my news grabbers found an article on environmentalism and religion at a Live Journal site, an answer to a speech by Michael Crichton on environmentalism as religion.  Crichton’s speech was delivered in 2003 to the Commonwealth Club in San Francisco, a venerable old institution for giving a soap box to doers and thinkers. [Note, April 2015: If that link doesn’t work, find Crichton’s speech here.]

Crichton’s speech started out with promise:

I have been asked to talk about what I consider the most important challenge facing mankind, and I have a fundamental answer. The greatest challenge facing mankind is the challenge of distinguishing reality from fantasy, truth from propaganda. Perceiving the truth has always been a challenge to mankind, but in the information age (or as I think of it, the disinformation age) it takes on a special urgency and importance.

We must daily decide whether the threats we face are real, whether the solutions we are offered will do any good, whether the problems we’re told exist are in fact real problems, or non-problems. Every one of us has a sense of the world, and we all know that this sense is in part given to us by what other people and society tell us; in part generated by our emotional state, which we project outward; and in part by our genuine perceptions of reality. In short, our struggle to determine what is true is the struggle to decide which of our perceptions are genuine, and which are false because they are handed down, or sold to us, or generated by our own hopes and fears.

As an example of this challenge, I want to talk today about environmentalism.

The promise was short-lived.

Crichton described his learnings from studying anthropology, including an observation that religions always arise, and cannot be stamped out.  From there he makes an astounding leap, to claim that environmentalism is religion.  From that failed leap, the speech rapidly deteriorates.  He adopts tenets of American Christian and political fundamentalism, rapidly following up with a disavowal of fundamentalism, as if to try to hide what he’s done, or deny it, at least for himself:

So I can tell you some facts. I know you haven’t read any of what I am about to tell you in the newspaper, because newspapers literally don’t report them. I can tell you that DDT is not a carcinogen and did not cause birds to die and should never have been banned. I can tell you that the people who banned it knew that it wasn’t carcinogenic and banned it anyway. I can tell you that the DDT ban has caused the deaths of tens of millions of poor people, mostly children, whose deaths are directly attributable to a callous, technologically advanced western society that promoted the new cause of environmentalism by pushing a fantasy about a pesticide, and thus irrevocably harmed the third world. Banning DDT is one of the most disgraceful episodes in the twentieth century history of America. We knew better, and we did it anyway, and we let people around the world die and didn’t give a damn.

I can tell you that second hand smoke is not a health hazard to anyone and never was, and the EPA has always known it. I can tell you that the evidence for global warming is far weaker than its proponents would ever admit. I can tell you the percentage the US land area that is taken by urbanization, including cities and roads, is 5%. I can tell you that the Sahara desert is shrinking, and the total ice of Antarctica is increasing. I can tell you that a blue-ribbon panel in Science magazine concluded that there is no known technology that will enable us to halt the rise of carbon dioxide in the 21st century. Not wind, not solar, not even nuclear. The panel concluded a totally new technology-like nuclear fusion-was necessary, otherwise nothing could be done and in the meantime all efforts would be a waste of time. They said that when the UN IPCC reports stated alternative technologies existed that could control greenhouse gases, the UN was wrong.

I can, with a lot of time, give you the factual basis for these views, and I can cite the appropriate journal articles not in whacko magazines, but in the most prestigious science journals, such as Science and Nature. But such references probably won’t impact more than a handful of you, because the beliefs of a religion are not dependent on facts, but rather are matters of faith. Unshakeable belief.

From the promising start of claiming we must be skeptical and carefully sort out what is true from what is not true, he rapidly plunges from the stratosphere into the depths of the ocean of misinformation.  Count the errors:

  1. Newspapers have been regular carriers of claims that restrictions on DDT are unnecessary.  You won’t find such claims in science journals, in fact — they appear almost without exception in newspapers.  Crichton is wrong about where you’d learn that DDT is harmless.  You can’t learn it from people who know.
  2. DDT is a “probable human carcinogen” listed by every cancer-fighting agency on Earth.  Fortunately for humans, it appears to be weakly carcinogenic.  Recent studies indicate it’s devious in its carcinogenicity, too — it gives cancers not to the people who were exposed, but to their children.  Research into this path is only about a decade old.  Recent studies confirm carcinogenicity in humans.  Carcinogenicity in almost every other animal exposed has been long known.  It is highly unlikely that a compound known to cause cancer in every mammal tested, would not be carcinogenic in humans.  Again, you can’t learn this stuff in science journals.  You’ll have to learn it as dogma from cranks and crackpots.
  3. DDT’s links to the deaths of young birds is rock solid.  The links were clear by 1962, and no study has been done since 1962 to question those conclusions.  In fact, more than 1,000 studies have been done on the links, and published in peer-review journals.  Each one supports Rachel Carson’s conclusions that DDT is deadly to young birds.  The mechanisms are now known by which DDT causes eggshell-thinning, which increases the chick mortality.  Recovery of the bald eagle, osprey, and brown pelican correlate exactly with the decline of DDT in the tissues of the birds.  No scientist who has studied the matter doubts that DDT kills birds.
  4. DDT was banned because it disrupts eco-systems.  In the wild, it is uncontrollable.  Yes, it kills pests.  But it also kills all the pest predators, too.  The pests use reproduction as a survival tool, and outreproduce predators, and even DDT.  An application of DDT, then, kills off the predators that protect an ecosystem from the pests, and the pests come roaring back, unchecked by nature.  The poison is magnified as it rises through the food chain (trophic levels, if you want the science term).  By the time an eagle or predator fish eats, it gets a crippling dose of the stuff.  By the mid-1960s, insects and arachnid pests around the world had begun to show resistance and even immunity to DDT (bedbugs demonstrated resistance by 1950; some are completely immune to DDT; almost all mosquitoes now carry multiple copies of a gene which allows mosquitoes to digest DDT as a nutrient, doing no harm).  The restrictions on DDT had nothing to do with human cancers, but everything to do with saving crops and forests, and the wildlife that lives there.  Crichton pulls an old bait-and-switch when he claims regulators knew DDT “wasn’t carcinogenic and banned it anyway.”  The regulators knew it might be a weak carcinogen, but they did not know it spreads through the environment and lasts almost forever, contaminating even human breast milk for at least six decades after application.  But this was not their concern.  The dangers of carcinogenicity were on top of the concerns about agriculture and forests and prairies.  Regulators acted to save the world we live in, and noted that such action also produced a minor reduction in cancer risk.
  5. DDT use in Africa never reached the nations where most malaria victims die today, at least not by 1972.  The ban on spraying DDT on cotton has nothing to do with malaria rates today, except that contrary to Crichton’s claim, it was the DDT use that aided malaria, not its cessation.  So for Crichton to claim that stopping the use of DDT on U.S. cotton crops led to a rise in malaria in Africa is a stretch of evidence way, way beyond any logical link.  Chaos theory only jokingly suggests the butterfly’s fluttering in Beijing last month affects weather in New York this month.  Boll weevils in the U.S. don’t carry malaria anyway, let alone fly to Africa to infect children there.
  6. Crichton dogmatically insists smoke is not a health hazard to non-smokers.  You won’t find much research to back his claim.  It’s another claim he makes religiously, on belief, not on evidence.  He can tell us second-hand smoke is not dangerous, but he can’t back the claim with evidence.  (Dangers of second-hand smoke have been well known since the 1970s; when Orrin Hatch got the law passed to switch to four, rotating warnings on cigarette packages, the debate was whether to include a fifth warning of second-hand smoke.)
  7. Urbanization figures cited by Crichton are low, and do not consider the damage done by urbanization to non-urban lands.  Low?  In one study, planners looked at Tippecanoe County, Indiana.  Recently, urban land use there rose from 8% to 12% — starting from a baseline larger than Crichton allows.  Crichton might argue that counties in North Dakota lose people, but the pollution and erosion from the urbanization in West LaFayette, Indiana, cannot be offset by relatively stable rural areas 600 miles away (I’m plucking a figure out of my hat), in a completely different watershed, in a completely different airshed, in a completely different climate, in a different economy.  Any soldier  or farmer can tell you that concentrating activities of people in a smaller area multiplies the impacts.  If you have 40 cows roaming over 6 acres, you don’t need to worry so much about where they leave their pies, or the concentration of ammonia in their urine.  If you put those same 40 cows in one small pen, however, you’ve just created a runoff problem, and health problems for the cows and the people who handle them.  Wholly apart from the numbers games, the facts show that urbanization increases the need for green and wild space for the people who move into the citiesTwo different presidential commissions reporting 25 years apart noted the needs, and the needs are only more fierce now (the link is to an article by Charles Jordan, who was one of the commissioners on the President’s Commission on Americans Outdoors which reported in 1987, the second of the two studies referred to — see Jordan’s article for full details).
  8. If the Sahara is shrinking, that doesn’t help much.  South of the Sahara, in Niger, an area the size of Luxembourg is lost to desertification every year.  Deserts are advancing in Arizona, California, China (both the Gobi and the Taklamakan), and across the rest of Central Asia to Africa.  If the Sahara is shrinking, that’s probably good.  It’s not enough to suggest that desertification is not a problem, even in North Africa.  Ultimately, it’s not how much land is affected, but rather it is the effects themselves, and how they affect humans.  Desertification — which is defined by international agencies as the degradation of land — affects 16.5 million people in Europe alone.  According to the UN, desertification threatens the lives and livlihoods of about out of every six people on Earth — 1.2 billion people total.  How does the Sahara’s shrinking help them?  Is Crichton just pulling another bait-and-switch?
  9. The total ice on Antarctica is increasing because the waters around the icy continent are warming — “lake effect” increases snowfall when increased evaporation from warmer waters is carried by the air over land.  The rather dramatic increases in ice pack on parts of Antarctica are stark testimony to the ill effects of global warming.
  10. If Crichton is right, and no existing technology will allow us to reduce carbon emissions, then we need to hit the panic button, not the snooze button.

Those are just the factual errors in two paragraphs.  Environmentalism as religion?  Maybe that would be a good idea, if the religion honored accuracy and truth telling, rather than fictional accounts of what is going on on Dear Old Planet Earth.

I enjoyed Michael Crichton’s writing, and I hope his stories inspire kids to work at a life in science.  But, as with Caesar, as Antony noted, the bad stuff people do lives on past them.  Let’s change that for Crichton – kill the bad stuff, keep the good stuff.

The evil that men do lives after them;
The good is oft interred with their bones.

William Shakespeare
Julius Caesar, Act III, Scene 2

Update, April 4, 2013:  American Elephants, a blog that isn’t about elephants, isn’t about their conservation, and in my view, isn’t much about America, either, fell victim to Crichton’s errors, all these months later. Plenty of time to get the story right since 2008, but American Elephants couldn’t do it.  American Elephants is too often an example of the Dunning Kruger effect, alas.

Other sites that still get it wrong, five and six years later:


Beating malaria without DDT

November 3, 2008

I told you so.

Recent research and assessments of anti-malaria campaigns in Africa show dramatic results from the use of bed nets and other non-DDT spraying methods.

Rachel Carson was right.

I was compelled to jump into this issue when Utah’s U.S. Rep. Rob Bishop made a silly and incorrect statement against Rachel Carson, after his failed attempt to derail a bill to rename a post office in her honor on the 100th anniversary of her birth.  The slam-Rachel-Carson effort turned out to include Oklahama U.S. Sen. Tom Coburn (who has since recanted), and an array of anti-science types who rail against “environmentalists” and made astoundingly false claims against Carson’s work and Carson herself.

In those cases, Carson’s critics called for a return of massive spraying of DDT.  Eventually most of them backed off of calling for outdoor spraying.  Eventually Sen. Coburn lifted his hold on the post office renaming legislation (and it passed).

The calumny continued on the internet, however, with an active hoax campaign for DDT and against environmental protection and Rachel Carson.  Steven Milloy joined Lyndon Larouche in promoting the anti-Carson screeds of the late Dr. Gordon Edwards, a UC Davis entomologist who argued against science that DDT was harmless to humans and animals.

Enough about history.  Look at the real results on the ground, today:

First, note the study published in Lancet that documents a dramatic decrease in malaria in Gambia, using “low-cost” strategies that include bed netsAgence France Presse carried a summary of the study. [Another link to the same AFP article.]

Incidence of malaria in Gambia has plunged thanks to an array of low-cost strategies, offering the tempting vision of eliminating this disease in parts of Africa, a study published Friday by The Lancet said.

At four key monitoring sites in the small West African state, the number of malarial cases fell by between 50 percent and 82 percent between 2003 and 2007, its authors found.

The tally of deaths from malaria, recorded at two hospitals where there had been a total of 29 fatalities out of 232 admissions in 2003, fell by nine-tenths and 100 percent in 2007. A fall of 100 percent means that no deaths attributed to malaria occurred that year.

“A large proportion of the malaria burden has been alleviated in Africa,” the study concludes.

Also see:

Second, note that malaria rates also fell in Kenya, with a shift in infections away from young children, a very good sign. TropIKA.net carried a summary of that study.

Toronto’s Globe and Mail carried a longer story on Kenya’s experience, “Malaria a rare public-health success story in Africa.”

“We had to stay home and tend the sick – you can never leave them to go and work in the fields – and then there was no income and we were hungry. So truly, that 100 shillings was a great investment.”

The family heard about the importance of using a bed net to fend off malaria in a sermon at church, and then on the radio. Now, a year later, they would be able to get them for free, as Kenya ramps up its efforts to get every single citizen sleeping under a net.

Already, two-thirds of Kenyan children are sleeping beneath them and, as a result, child malaria deaths have fallen by 40 per cent in the past two years.

This remarkable success story has been repeated across much of Africa: Deaths of children under 5 declined 66 per cent in Rwanda from 2005 to 2007 and by 51 per cent in Ethiopia.

“This really is the one global public-health story that is simply and straightforwardly positive,” said Jon Lidén, spokesman for the Global Fund to Fight AIDS, Tuberculosis and Malaria, which has been behind much of the push.

“It’s not a gradual change. It’s a fundamental change in the fight against malaria.”

Yet the decidedly unglamorous innovations responsible for the change – spraying houses, treating standing water to kill larvae, mass distribution of cheap polyester nets and better drugs, and simple public education on the need to treat suspected malaria quickly – receive almost no attention.

“We never make the headlines with this stuff,” said Shanaaz Sharif, head of disease control for Kenya’s Ministry of Health, which has thus far given out 11 million nets at a cost to the government of $6 each.

Sulay Momoh Jongo, 7, is seen inside a mosquito net in a mud hut is seen inside a mosquito net in a mud hut in Mallay village, southern Sierra Leone, on April 8, 2008. Although free treatment is sometimes available in Sierra Leone to fight the mosquito-borne disease -- whose deadliest strain is common in the countrys mangrove swamps and tropical forests -- many cannot get to health clinics in time. Worldwide, more than 500 million people become severely ill with malaria every year. One child dies of the disease every 30 seconds. Picture taken April 8, 2008. (Katrina Manson/Reuters)

From the Toronto Globe and Mail: “Sulay Momoh Jongo, 7, is seen inside a mosquito net in a mud hut is seen inside a mosquito net in a mud hut in Mallay village, southern Sierra Leone, on April 8, 2008. Although free treatment is sometimes available in Sierra Leone to fight the mosquito-borne disease — whose deadliest strain is common in the country’s mangrove swamps and tropical forests — many cannot get to health clinics in time. Worldwide, more than 500 million people become severely ill with malaria every year. One child dies of the disease every 30 seconds. Picture taken April 8, 2008. (Katrina Manson/Reuters)”

Despite pledges from the U.S. to signficantly increase funding to fight malaria, money has not flowed from the U.S., especially for bed nets.  Ironically, Canada is the chief donor of the nets.

Canada has had a key role in this success: The Canadian International Development Agency is the single largest donor of bed nets to Africa – nearly 6.4 million by the end of last year. In addition to government support, Canadian individuals and charities – notably the Red Cross – have embraced the issue by making donations and fundraising.

“Canadians … haven’t got the credit they deserve,” said Prudence Smith, head of advocacy for Roll Back Malaria, a partnership between key global-health agencies and donors such as the Bill and Melinda Gates Foundation.

Not all news is good. In Zimbabwe, dictator Robert Mugabe misused $7.3 million in malaria-fighting money from the Global Fund to Fight AIDS, Tuberculosis and Malaria. So far, he has not repaid the Global Fund. Politics continues to kill Africans, not an absence of DDT.

In India, where DDT use is untallied, manufacture massive, and use virtually uncontrolled, malaria is resurgent. According to The Telegraph in Calcutta, malaria is epidemic among people living in poorer sections of the city, often with fatal results.  ExpressIndia.com’s headline tells the story:  “Malaria puts city on the edge:  toll rises to 8.”

Public health officials in India will step up information and education campaigns, and urge residents “not to panic.”

See also:

In the Philippines, the government’s press agency promotes malaria prevention steps.

Science Daily reports progress in the long march for a malaria vaccine.

Public health officials warn the U.S. is completely unprepared for a malaria outbreak, according to The Orlando Sentinel, via the Houston Chronicle.

More:


Solid research on controlling malaria

October 20, 2008

Looking for other things, I stumbled into two research journal articles on the fight against malaria.  Neither calls for a return to broadcast spraying of DDT; neither claims the ban on agricultural use of DDT had any significant effect on the rise of malaria.

Both are loaded with serious research that exposes DDT advocates as charlatans.

First:  from Clinical Microbiology Reviews, October 2002, p. 564-594, Vol. 15, No. 4
0893-8512/02/$04.00+0; DOI: 10.1128/CMR.15.4.564-594.2002. “Evolutionary and Historical Aspects of the Burden of Malaria,” by Richard Carter and Kamini N. Mendis:

SUMMARY:  Malaria is among the oldest of diseases. In one form or another, it has infected and affected our ancestors since long before the origin of the human line. During our recent evolution, its influence has probably been greater than that of any other infectious agent. Here we attempt to trace the forms and impacts of malaria from a distant past through historical times to the present. In the last sections, we review the current burdens of malaria across the world and discuss present-day approaches to its management. Only by following, or attempting to follow, malaria throughout its evolution and history can we understand its character and so be better prepared for our future management of this ancient ill.

Second, from Joel G. Bremen, Martin S. Alilio, and Anne Mills, “Conquering the Intolerable Burden of Malaria:  What’s New, What’s Needed:  A Summary,” Am. J. Trop. Med. Hyg., 71(2 suppl), 2004, pp. 1-15 (The American Journal of Tropical Medicine and Hygeine).

High school kids, there are the sources you need for your papers on the fight against malaria.


Malaria/DDT Carnival addendum

October 11, 2008

It’s almost as interesting that these posts show up on the same day, as what they say.

Following on the heels of the impromptu Malaria/DDT carnival earlier in the week, take a look at these posts:


Carnival of Fighting Malaria (and DDT)

October 8, 2008

It’s been about a year since the first, completely impromptu Carnival of DDT.  Last fall, in October and November, there was enough going on about DDT to merit something like a blog carnival, with a second in November.

My news searches today turned up a number of items of interest in DDT and fighting malaria — enough to merit another summary post, IMHO.  Here goes.

First, Tim Lambert at Deltoid sets straight the history of the policy of the World Health Organization (WHO) with regard to DDT use, and whether WHO caved in to pressures from environmentalists to completely ban DDT, as Roger Bate had earlier, erroneously said.  Tim has a number of well-researched, well-reasoned posts on DDT and health; people researching the issue should be sure to visit the archives of his blog.  But for today, make sure you read “Roger Bates’ false history.

Ornithologist Tom Cade holds a gyrfalcon, which is larger than the peregrine falcons he helped to preserve. Now working to aid the revival of the California condors, he will speak Friday at Hawk Mountain Sanctuary.  Allentown (Pennsylvania) Morning-Call

Ornithologist Tom Cade holds a gyrfalcon, which is larger than the peregrine falcons he helped to preserve. Now working to aid the revival of the California condors, he will speak Friday (October 10) at Hawk Mountain Sanctuary. Allentown (Pennsylvania) Morning-Call

(Photo above has gone missing; see photo below)

Ornithologist Tom Cade, with a falcon; photo by Kate Davis, from Cade's biography at Global Raptors

Ornithologist Tom Cade, with a falcon; photo by Kate Davis, from Cade’s biography at Global Raptors

This Friday the Hawk Mountain Sanctuary presents an award to Tom Cade, the Boise, Idaho guy credited with doing much to save the endangered peregrine falcon. You can read about it in the Allentown, Pennsylvania, Morning Call.

Cade played a major role in reviving the nearly extinct peregrine falcon in the 1970s. As a graduate student, he studied how a pesticide contributed to their sharp population decline. He eventually founded a conservation group, The Peregrine Fund, which reintroduced captivity-bred birds to the wild.

. . . The falcon’s revival is widely considered one of the most successful recoveries of an endangered species. The species teetered on the brink of extinction in 1970, when as few as 39 known pairs of nesting falcons existed. A 2003 survey puts the number of nesting pairs at more than 3,100.

On Thursday Cade will receive the Sarkis Acopian Award for Distinguished Achievement in Raptor Conservation.  According to The Morning Call, “The award is given infrequently by Hawk Mountain officials and is named after the Kempton-area bird sanctuary’s primary benefactor, a late philanthropist who studied engineering at Lafayette College.”

Also, see this story about the recovery of peregrines in Canada, from the Sudbury Star.

Bug Girl tells the story of a new documentary on the Michigan State University professor who documented the deaths of songbirds made famous in Rachel Carson’s book, Silent Spring. Dr. George J. Wallace’s work became the subject of an article in Environmental Journalism in 2005.  Students and faculty at MSU’s Knight Center for Environmental Journalism produced the movie, “Dying to Be Heard.”  Be sure to check out the comments at Bug Girl, for more information.

International health care expert César Chelala argues that the “War Against Malaria Can Be Won, Without DDT” at the on-line Epoch Times. Chelala reports on a project in Mexico — where DDT use has never stopped since 1946 — a project now extended to other places in Central America, demonstrating that the tried and true methods of preventing mosquitoes from breeding and avoiding contact work well to fight malaria.  Plus, he says, it’s cheaper than using DDT.  Doubt that it could work?  Chelala points out that the Panama Canal could not be dug without controlling mosquito-borne illnesses, and the Canal was opened in 1914, 25 years before DDT was demonstrated to be deadly to insects, more than 30 years before widespread deployment of DDT.

Early detection and treatment is critical to eliminate the parasite carriers. An important aspect of this project has been the collaboration of voluntary community health workers who are taught to make an early diagnosis in situ and to administer complete courses of treatment not only to those affected but also to the patients’ immediate contacts.

The project was carried out in specific pilot areas called “demonstration areas” which had been selected due to their high levels of malaria transmission. In those areas, the number of malaria cases fell 63% from 2004 to 2007. In several demonstration areas I visited in Honduras and Mexico as a consultant for the Pan American Health Organization malaria had practically been eliminated. Plans are underway to expand the project to other regions where malaria remains a serious threat.

One of the advantages of not using DDT (besides avoiding its toxic effects) is the enormous savings realized from discontinuing its routine use. These savings can now be put to good use with other diseases.

You might also want to view Chelala’s description of solutions for public health crises in Africa, at The Globalist.

Chelala’s cool, clear and accurate reporting sadly contrasts with the hysteric and wrong reporting at Newsbusters and other polemical outlets on the web, seemingly bent on perpetration of the hoax that DDT is harmless and Rachel Carson was wrong.

Liz Rothchild’s one-woman play about Rachel Carson, “Another Kind of Silence,” got good reviews upon opening at the Warehouse Theatre, in Croydon, England.

Meanwhile, from Uganda comes news that DDT spraying failed to reduce malaria in spraying done in that nation. Proponents expected a sharp and steep decline in malaria, but numbers are not greatly reduced.  Even after taking account for the legal difficulties of spraying, after conservative businessmen sought an injunction to stop DDT use, the results do not speak well for DDT’s effectiveness.

Contrary to expectations, data collected by health departments in Apac and Oyam districts, which record the highest malaria incidence in the world, do not reflect significant improvements since DDT spraying ended prematurely. From May to July 2008, which is the period immediately following the spraying, between 400 and 600 clinical malaria cases per 100,000 of the population were reported per week in Oyam; and 600 to 800 such cases in Apac for the same period. These are almost exactly the same as the number of cases reported between January and April 2008.

Getting news out of Africa is not always easy.  Reading reports from Ugandan papers, it becomes clear that reporting standards differ greatly from the U.S. to Uganda.  Still, the saga from Uganda demonstrates that DDT is no panacea.  Uganda is a nation that had not used DDT extensively prior to the mid-1960s.  Resistance to use now comes from tobacco and cotton interests who speciously claim that potential DDT contamination of crops would result in the European Union banning vital Ugandan exports.  The legal issues all alone assume Shakespearean tragedy dimensions.  Or, perhaps more accurately, we could call the story Kafkaesque.

See also:

Happily, we have evidence that younger people show concern about DDT pollution, in a story about the stuff in Teen Ink magazine.

A study in the UK finds DDT present in colostrum, the vital pre-milk substance newly-lactating mothers create for their babies, as well as in later breast milk.

Bed bugs continue their own surge on Americans, and knee-jerk writers editorialize for the return of DDT, completely unaware that bed bugs are among those critters most resistant to DDT, and unaware that there are other, more effective solutions.

James McWilliams writes in The Texas Observer that most of us are ecological illiterates, which makes control of pollution more difficult, in a review of a new book, The Gulf Stream. Canny readers will recognize McWilliams as the author of the recently-published book, American Pests: Our Losing War on Insects from Colonial Times to DDT.

Sandra Steingraber will lecture on November 11 in Philadelphia on “The Many Faces of DDT,” part of a series of lectures sponsored by the Chemical Heritage Foundation, “Molecules That Matter.”  Steingraber is the author of Living Downstream:  An ecologist looks at cancer and the environment.

Canada’s Leader-Post reports that Chinese food processors have been caught using DDT in food to reduce insect infestations.  The cycle starts all over again.

Time for this carnival’s midway to shut down for the night.  Don’t let the bed bugs bite.


DDT results disappointing in Uganda

October 3, 2008

October 2008 — Uganda is nearing the end of the season when the national health service sprays DDT inside homes to discourage mosquitoes from biting, and spreading malaria.  Results from DDT use this year show no improvement over the previous year, and in some cases malaria rates are higher.

BBC map of Uganda, showing Apac Province. Apac is victim to terrorism by the

BBC map of Uganda, showing Apac Province. Apac is victim to terrorism by the “Lord’s Resistance Army” and other armed bandits, as well as being the most malaria-ridden area of the world.

The story from The Observer in Kampala, via All-Africa.com news, provides some of the details, but little analysis to be debated.  Is the failure of the program due to partial implementation, since implementation was resisted by businesses and cotton farmers?  Or is DDT simply ineffective?  It’s nearly impossible to tell from data available so far.

Below the fold, the story in its entirety.

Read the rest of this entry »


Michael Crichton’s errors worshipped by warming deniers

September 28, 2008

The Millard Fillmore soap-on-a-rope* started spinning in the shower this morning.  I knew some mischief was afoot.

Sure enough, as soon as we turned the gas on to the computer and the screen warmed up, what should pop up but a group claiming to be opposed to junk science and arrogant ignorance, but arrogantly spreading the ignorance of junk science:  Climate Change Fraud, “The Crichtonian Green.”

I caught the site with a news reader that looks for idiocy about DDT.  This is the line the automoton caught:

“DDT is not a carcinogen…the DDT ban has caused the deaths of tens of millions of poor people…”

We’ve washed out the dirt from Crichton’s claims before in the Bathtub, in “Michael Crichton hysterical for DDT.”  Go read his errors there (there’s a YouTube video of his assaulting innocent school children with his hysteric errors, too, in case you think I’m joking).

Among the anti-science crowds, this stuff is holy writ.  Dogma insists that scientists are craven political creatures driven to silly programs that waste money and hurt poor people.  Never mind the facts.  They believe it religiously — and they treat efforts to educate them as assaults on their faith.

DDT is a well-established carcinogen in animals, including mammals, and every cancer-fighting agency on Earth lists DDT as a probable human carcinogen.  The various “bans” on DDT all allow DDT to be used to protect poor people against disease, but DDT’s overuse by its advocates led to rapid evolution of resistance and immunity in insects targeted by DDT — DDT use was stopped when it stopped being effective.  Inaction on the part of DDT advocates, and their unwillingness to use other methods to fight malaria, have been culprits in the too-slow program to reduce malaria among poor people.   Spraying DDT advocates with DDT will do absolutely nothing to get them off their butts to act.

(Go to the search feature on this blog, search for “DDT.”  The truth is out there.)

Oy.  This is how the week starts?

__________

No, I never did get a Millard Fillmore soap-on-a-rope; but it makes a good gambit to open a post, don’t you think?

John Stossel: Wrong again, on DDT

September 17, 2008

John Stossel’s new book makes a detour to rail against the regulation of DDT and against Rachel Carson and her book, Silent Spring.

I’ve not read the book, but from what I’ve read about it, he’s got it dead wrong.  If the example offered by Grokmedia is their own, and not Stossel’s, shame on them.  (Stossel’s complained about DDT before, though, and gotten the facts as wrong as Grokmedia has them.)  The claims are unbelievable:

Consider the chemical DDT. I’m sure, if you’ve heard anything at all about DDT, it’s that it’s a horrible, deadly chemical, that must be banned to preserve the public’s safety. The truth is, the only thing DDT affects are mosquitos. Not humans. In fact, I’m old enough to remember trucks pulling through our neighborhood and spraying the stuff into the air, like gigantic clouds, bringing death – to the mosquito population. These clouds of DDT harmed no one. There were no great increases in any kind of cancer or other fatal diseases – and certainly none that could be associated with DDT. Enter the book, Silent Spring.

A woman by the name of Rachel Carson wrote a book that vilified DDT, and blamed our love of chemical solutions for her own cancer. (She died of breast cancer two years after the publication of her book.) Silent Spring is almost single-handedly credited with triggering a worldwide ban on DDT. The result of this ban has been, paradoxically enough, millions of deaths in countries like Ethiopia, where malaria kills due to mosquito infestations. U.S. aid policy bans sending money to any country that chooses to spray with DDT.

How did Silent Spring cause this wave of destruction? Marketing. The book was marketed by it’s publishers. The marketing efforts attracted the attention of a mainstream media hungry for stories that scare the populace to death. The unwashed masses Demanded That Something Be Done. Politicians, eager to grandstand (and free of conciences that might give them pause to think about the Law of Unintended Consequences) passed laws, and that was that.

Here’s what I wrote in comments to the post at Grokmedia, which appears to have gone into their own hell for any post that disagrees with their views:

Stossel said that about DDT?  Once again, he’s gone off the rails.

Do you seriously think that a book publisher with its meager PR budget could derail a multi-billion-dollar pesticide manufacturing industry that was led by several of America’s top 100 corporations?  Do you think corporations are really that incompetent at the public relations game?

The truth is that DDT was banned because of its harm to the environment, not due to its dangers to human health (though, to be perfectly accurate we should note that every cancer-fighting agency on Earth says DDT is a probably human carcinogen, and recent research has strengthened the links between cancer in people exposed to DDT in their mother’s breast milk and in utero, and that DDT is now known to be a rather nasty endocrine disruptor in all animals).  More than a thousand studies confirmed the dangers of DDT to birds and other predators higher up in food chains, especially in estuarine waters.

No one passed a law banning DDT.  If the action was popular, that was beside the point.  In 1962, in response to the half-million-dollar slander campaign against Carson by the pesticide manufacturers (don’t take my word for it — look it up), President Kennedy asked his Science Advisory Council to scrutinize the book.  In May 1963 they reported back that Carson was correct on all counts but one — they said Carson went too easy on the dangers of DDT, and that action needed to be taken right away to stop its use.  Kennedy dallied, however, and did little before he died.

The “ban” on DDT came nearly a decade later, in 1972.  It was not due to any “junk science” law (an interesting claim since it is based on junk science itself).  Two federal courts had ordered EPA to speed up its analysis of the registration of the pesticide, in lieu of simply ordering the stuff off the market after two entirely different lawsuits.  Pesticide manufacturers had been defendants in both lawsuits, and they put up a more than vigorous fight — but they lost on the science.

EPA dragged its feet, but finally acted against DDT in 1972, effectively banning the broadcast spraying of DDT on crops, but leaving it available for things like malaria control.  Of course the ruling was challenged in court, since under U.S. law, had the ruling been only popular, and not based on considerable evidence, the courts would have been obligated to nullify the ruling.  In two separate challenges, the courts ruled that EPA’s action was solidly based on the scientific evidence, and therefore would stand.

That’s quite a bit different from the picture Stossel paints, I gather.  Is this, perhaps, his first foray into fiction?

And, did you catch the contradictions?  The author claims mosquito abatement in Ethiopia is hampered by a lack of U.S. aid, as a result of Rachel Carson’s book in 1962.  Do they know that George Bush is president?  Do they really think Bush and Cheney are tools of Rachel Carson?  Do they know that bed nets have cut malaria rates by half where they were used in Ethiopia?

Looks like another example of DDT poisoning to me.


Hope is the things with feathers

September 11, 2008

The Singing Cricket noticed that, with DDT use in decline, a lot of birds can be seen that we didn’t see for a long time. She takes hope at that thought.

Nice photos, too.

Apologies to Emily Dickinson, of course.

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