Does Africa Fighting Malaria actually fight malaria? (format fix)

June 11, 2010

[Editor’s note: This post is an attempt to fix a formatting error in the earlier post with the almost-same headline, which has some corruption in it I have been unable to find or fix, but which renders the text almost unreadable.  My apologies.  Have not yet figured out how to move comments, alas; check the old post.]

This spring’s publication of a book, The Excellent Powder, by Richard Tren and Donald Roberts, repeating most of the false claims about malaria and DDT, got me wondering. Their organization, Africa Fighting Malaria (AFM):

Does AFM do anything to fight malaria? At its own website it makes some astoundingly grandiose claims:

In its seven years of operation, AFM has helped transform malaria control by taking on and turning around failing public health institutions, donor agencies and governments.

Offhand I can’t think of any public health institution AFM has even been involved with, other than its undeserved criticism of the World Health Organization — and if anyone knows of any donor agency or government AFM has “turned around,” the history books await your telling the story.

Africa Fighting Malaria springs to life every year around World Malaria Day, April 25, with editorials claiming environmentalists have killed millions.  AFM seems to be one of the sources of the bizarre and false claim that Rachel Carson is a “mass murderer.”  AFM makes noise whenever there is difficulty getting a DDT spraying campaign underway in any part of Africa, for any reason, quick to lay the blame on environmentalists, even though the blame generally rests in other places.  AFM is quick on the draw to try to discredit all research into DDT that suggests it poses any health threat, though so far as I can tell AFM has published no counter research, nor has it conducted any research of its own.

In its 2009 Annual Report, AFM proudly states “AFM is the only advocacy group that routinely supports IRS [Indoor Residual Spraying] and through its advocacy work defends the use of DDT for malaria control.”

Cleverly, and tellingly, they do not reveal that IRS in integrated vector (pest) management is what Rachel Carson advocated in 1962, nor do they mention that it is also supported by the much larger WHO, several nations in Africa, and the Gates Foundation, all of whom probably do more to fight malaria when they sneeze that AFM does intentionally.

Google and Bing searches turn up no projects the organization actually conducts to provide bed nets, or DDT, or anything else, to anyone working against malaria.  I can’t find any place anyone other than AFM describes any activities of the group.

AFM has impressive video ads urging contributions, but the videos fail to mention that nothing in the ad is paid for by AFM, including especially the guy carrying the pesticide sprayer.

Looking at the IRS Form 990s for the organization from 2003 through 2008 (which is organized in both the U.S. and South Africa), it seems to me that the major purpose of AFM is to pay Roger Bate about $100,000 a year for part of the time, and pay Richard Tren more than $80,000 a year for the rest of the time.

Can anyone tell me, what has Africa Fighting Malaria ever done to seriously fight malaria?

One could make the argument that if you sent $10 to Nothing But Nets, you’ve saved more lives than the last $1 million invested in AFM, and more to save lives than AFM in its existence.

Tip of the old scrub brush to Pharyngula and Antievolution.org, even though AFM wasn’t what they were targeting.

_____________
Update: Tim Lambert at Deltoid sent some traffic this way, which caught the attention of Eli Rabett, which reminded me that there really is more to this story about Africa Fighting Malaria, and you ought to read it at Deltoid and Rabett’s warren.

More (updated September 24, 2013):


A cocktail with gin and DDT? Slim chance

June 10, 2010

World War II soldier gets DDT to kill lice - CDC photo, Wikimedia

He'll need a drink after this. World War II soldier gets a dose of DDT, without gin. CDC photo via Wikimedia

MicroKahn worked to track down the facts:  Was there really a cocktail called a Mickey Slim that consisted of gin and DDT?

Non-gin drinkers will think that’s likely, but gin drinkers would quickly recognize that such a drink would be wasteful of good gin.

And it will give cancer to your children and grandchildren, and thin your eggshells.

It’s probably a bar room legend:  The Myth of the Mickey Slim.


Lorrie Otto, environmental warrior

June 9, 2010

The Milwaukee Journal-Sentinel carries the news that Lorrie Otto has died.

When DDT spraying killed birds and bats in her yard, Lorrie Otto went to work to stop the destruction.  Otto won.  Someone should step up to take her place, in each of the things she did.

‘Nature Lady’ Otto helped lead DDT fight

Lorrie Otto leads Natural Landscape Tour in Milwaukee - Journal-Sentinel photo by Michael Sears

Caption from the Journal-Sentinel: Lorrie Otto (left) leads the "Natural Landscape Tour" along the banks of Lake Michigan in the 9700 block of N. Lake Drive. A video crew from NBC News photographed the event for a segment. Journal-Sentinel photo by Michael Sears

She began with natural yards, progressed to national causes

By Amy Rabideau Silvers of the Journal Sentinel

Posted: June 2, 2010

Lorrie Otto understood that it wasn’t nice to mess with Mother Nature.

And so the woman known as “the Nature Lady” planted her Bayside yard with native species and wildflowers – fighting for the right to keep her land natural and teaching others how to do the same. She rose to become an environmental warrior, a leader in the battle to ban DDT in Wisconsin and then nationally.

She shared her vision that average people could make a difference by eliminating the standard lawn for more ecological alternatives. The well-manicured lawn was not, she said, a healthy green space.

“They look like golf courses,” Otto once said, then corrected herself. “They look like cemeteries.”

Otto died of natural causes Saturday in Bellingham, Wash., where she moved in 2008 to be near her daughter. She was 90.

Otto served as a founder and leader with groups including Citizens Natural Resources Association of Wisconsin, the Riveredge Nature Center and Wild Ones. She became a nationally recognized naturalist and speaker, called “the godmother of natural landscaping.” Media credits include everything from Martha Stewart Living to “NBC Nightly News.”

“In recent years, a New Yorker article credited her and Rachel Carson for leading the movement,” said daughter Tricia Otto, referring to the author of the famous book “Silent Spring.”

Lorrie Otto, Milwaukee environmental activist, in 1999 - Milwaukee Sentinel-Journal photo

Milwaukee Journal-Sentinel photo: Lorrie Otto, shown in 1999, kept a lively prairie garden.

Otto was named to the Wisconsin Conservation Hall of Fame in 1999. The Schlitz Audubon Center’s annual natural yards tour is named in her honor.

“If suburbia were landscaped with meadows, prairies, thickets or forests, or combinations of these, then the water would sparkle, fish would be good to eat again, birds would sing and human spirits would soar,” Otto said.

She was born Mary Lorraine Stoeber, taking the name Lorrie after marriage. She grew up on a family dairy farm in Middleton and graduated from the University of Wisconsin in Madison.

During World War II, she saw an advertisement for the Women Airforce Service Pilots – what the ad called the “Cream of the Crop” – her daughter said.

“You had to be college-educated and have a pilot’s license,” Tricia said. “She went to the local airport and, with her own money, became a pilot.”

WASP pilots were civilians and the first women to fly American military planes. Just before she graduated, the war was coming to an end and the program quickly disbanded. She married her high school sweetheart, Owen Otto, and they settled in Bayside about 1952.

For Otto, the battles for natural landscaping and against DDT began in her own yard.

The former farm girl planted the family’s yard in a natural way, mostly to create “an enchanting place for my children to play.”

Soon Otto was confronting what she called “the lawn police” in Bayside. One day, a crew arrived and mowed part of her yard. She fought back, proving that her yard might look wild but that it did not contain weeds.

“She was so passionate,” Tricia said. “She would appear in court as an expert witness to defend someone whose yard was being persecuted.”

In the late 1950s, she learned of plans to develop the Fairy Chasm woodland area in her area. “She finally triumphed in 1969, when the Nature Conservancy purchased Fairy Chasm,” according to a copyrighted article by the National Wildlife Federation.

Those were also the days of routine DDT spraying, first to kill mosquitoes and then to kill the beetles destroying elm trees.

“Robins would go into convulsions. . . . I’d see the dead robins near the road,” she told The Milwaukee Journal in 1992. “Red bats would be dangling dead in the rosebushes.”

“She carried big bushel baskets of dead robins into village hall,” Tricia said. The official response ranged from indifferent to angry. “They said, ‘What do you want, lady, birds or trees?’ ”

Otto took the fight to the state level, finally deciding to sue. She contacted the Environmental Defense Fund, a fledgling out-of-state group that won a national reputation for action in Wisconsin. In 1970, Wisconsin banned the use of DDT. The federal ban was approved in 1972.

“She invited scientists from all over the country to her house, and they worked on the paper to present to Congress to get the ban on DDT,” said Dorothy Boyer, a friend and president of the Milwaukee North chapter of Wild Ones. “She had scientists sleeping in sleeping bags in her living room.”

Years later, she was still making new friends and encouraging others. One younger couple, Susannah and Lon Roesselet, began their own natural landscaping in Bayside a few years ago.

“One day the doorbell rang and this little white-haired woman was there, saying, ‘Hello, my name is Lorrie Otto,’ ” Susannah Roesselet said. “We knew about her. She stepped in and became our mentor. Our entire yard is now natural; she is everywhere. She’ll be missed, but she left her mark.”

When Otto finally had to leave her own home, she moved to Washington state to live with her daughter on a hundred acres of natural land.

“She was just having a ball,” Tricia said. “Living here, she said, you could believe the world was happy and whole.”

And Otto made plans for her own last plot of land, delighted to find a green burial cemetery and planting flowers on what would be her own grave. She will be buried without benefit of embalming or chemicals, returning to the earth she loved.

Otto is also survived by her sister, Betty Larson.

A Wisconsin gathering is being planned by friends.


Washington Times felled by DDT poisoning

June 9, 2010

Washington Times‘ owner, the Unification Church, put the paper up for sale earlier this year — tired of losing north of $30 million a year on the thing.  It appears that, in a cost-cutting move, the paper has laid off all its fact checkers and most of its editors.

And anyone with a brain.

DDT use in the U.S. peaked in 1959, with 70 million pounds of the stuff used in that year.  This ad comes from about that time.

DDT use in the U.S. peaked in 1959, with 70 million pounds of the stuff used in that year. This ad for a French product containing DDT comes from about that time.

How do we know?

Our old friend Stephen Milloy complains about Time Magazine’s “50 Worst Inventions” list, including, especially the listing of DDT, as discussed earlier.  It’s wrong, and silly.  Good fact checkers, and good editors, wouldn’t let such claptrap make it into print.

Milloy packed an astounding number of whoppers in a short paragraph about DDT:

From 1943 through its banning by the EPA in 1972, DDT saved hundreds of millions of lives all over the world from a variety of vector-borne diseases. Even when Environmental Protection Agency Administrator (and closeted environmental activist) William D. Ruckelshaus banned DDT in 1972, he did so despite a finding from an EPA administrative law judge who, after seven months and 9,000 pages of testimony, ruled that DDT presented no threat of harm to humans or wildlife. Today, a million children die every year from malaria. DDT could safely make a tremendous dent in that toll.

Let us count the errors and falsehoods:

1.  DDT was used against typhus from 1943 through about 1946, and against bedbugs; it saved millions, but not hundreds of millions. Death tolls from typhus rarely rose over a million a year, if it ever did.  Bedbugs don’t kill, they just itch.  If we add in malaria after 1946, in a few years we push to four million deaths total from insect-borne diseases — but of course, that’s with DDT being used.  If we charitably claim DDT saved four million lives a year between 1943 and 1972, we get a total of 117 million lives saved.  But we know that figure is inflated a lot.

Sure, DDT helped stop some disease epidemics.  But it didn’t save “hundreds of millions of lives” in 29 years of use.  The National Academy of Sciences, in a book noting that DDT should be banned because its dangers far outweigh its long-term benefits, goofed and said DDT had saved 500 million lives from malaria, and said DDT is one of the most beneficial chemicals ever devised by humans.  500 million is the annual infection rate from malaria, with a high of nearly four million deaths, but in most years under a million deaths.  Malaria kills about one of every 500 people infected in a year.  That’s far too many deaths, but it’s not as many lives saved as Milloy claims.

NAS grossly overstated the benefits of DDT, and still called for it to be banned.

The question is, why is Milloy grossly inflating his figures?  Isn’t it good enough for DDT to be recognized as one of the most beneficial substances ever devised?

My father always warned that when advertisers start inflating their claims, they are trying to hide something nasty.

2.  Ruckelshaus didn’t ban DDT on his own — nor was he a “closeted” environmentalist. He got the job at EPA because he was an outstanding lawyer and administrator, with deep understanding of environmental issues — his environmentalism was one of his chief qualifications for the job.  (Maybe Milloy spent the ’70s in a closet, and assumes everyone else did, too?)  But EPA acted only when ordered to act by two different federal courts (Judge David Bazelon ordered an end to all use of DDT at one of the trials).  At trial, DDT had been found to be inherently dangerous and uncontrollable.  Both courts were ready to order DDT banned completely, but stayed those orders pending EPA’s regulatory hearings and action.

In fact, regulatory actions against DDT began in the 1950s; by 1970, scientific evidence was overwhelming (and it has not be contradicted:

The U.S. Department of Agriculture, the federal agency with responsibility of regulating pesticides before the formation of the U.S. Environmental Protection Agency in 1970, began regulatory actions in the late 1950s and 1960s to prohibit many of DDT’s uses because of mounting evidence of the pesticide’s declining benefits and environmental and toxicological effects. Rachel Carson’s book Silent Spring in 1962 stimulated widespread public concern over the dangers of improper pesticide use and the need for better pesticide controls.

In 1972, EPA issued a cancellation order for DDT based on adverse environmental effects of its use, such as those to wildlife, as well as DDT’s potential human health risks. Since then, studies have continued, and a causal relationship between DDT exposure and reproductive effects is suspected. Today, DDT is classified as a probable human carcinogen by U.S. and international authorities. This classification is based on animal studies in which some animals developed liver tumors.

DDT is known to be very persistent in the environment, will accumulate in fatty tissues, and can travel long distances in the upper atmosphere. Since the use of DDT was discontinued in the United States, its concentration in the environment and animals has decreased, but because of its persistence, residues of concern from historical use still remain.

3.  Judge Sweeney ruled that DDT is dangerous to humans and especially wildlife, but that DDT’s new, Rachel-Carson-friendly label would probably protect human health and the environment. EPA Administrative Law Judge Edmund Sweeney presided at the hearings in 1971.  As in the two previous federal court trials, DDT advocates had ample opportunity to make their case.  32 companies and agencies defended the use of DDT in the proceeding.  Just prior to the hearings, DDT manufacturers announced plans to relabel DDT for use only in small amounts, against disease, or in emergencies, and not in broadcast spraying ever.  This proved significant later.

Judge Sweeney did not find that DDT is harmless.  Quite to the contrary, Sweeney wrote in the findings of the hearing:

20.  DDT can have a deleterious effect on freshwater fish and estuarine organisms when directly applied to the water.

21.  DDT is used as a rodenticide. [DDT was used to kill bats in homes and office buildings; this was so effective that, coupled with accidental dosing of bats from their eating insects carrying DDT,  it actually threatened to wipe out some species of bat in the southwest U.S.]

22.  DDT can have an adverse effect on beneficial animals.

23.  DDT is concentrated in organisms and can be transferred through food chains.

DDT use in the U.S. had dropped from a 1959 high of 79 million pounds, to just 12 million pounds by 1972.  Hazards from DDT use prompted federal agencies such as the Department of Agriculture and Department of Interior to severely restrict or stop use of the stuff prior to 1963.  Seeing the writing on the wall, manufacturers tried to keep DDT on the market by labeling it very restrictively.  That would allow people to buy it legally,  and then use it illegally, but such misuse can almost never be prosecuted.

Sweeney wrote that, under the new, very restrictive label, DDT could be kept on the market.  Ruckelshaus ruled that EPA had a duty to protect the environment even from abusive, off-label use, and issued a ban on all agricultural use.

4.  More DDT today won’t significantly reduce malaria’s death toll. Milloy fails to mention that DDT use against malaria was slowed dramatically in the mid-1960s — seven years before the U.S. banned spraying cotton with it — because mosquitoes had become resistant and immune to DDT.  DDT use was not stopped because of the U.S. ban on spraying crops; DDT use was reduced because it didn’t work.

Milloy also ignores the fact that DDT is being used today.  Not all populations of mosquitoes developed immunity, yet.  DDT has a place in a carefully-managed program of “integrated vector management,” involving rotating several pesticides to ensure mosquitoes don’t evolve immunity, and spraying small amounts of the pesticide on the walls of houses where it is most effective, and ensuring that DDT especially does not get outdoors.

To the extent DDT can be used effectively, it is being used.  More DDT can only cause environmental harm, and perhaps harm to human health.

Most significantly, Milloy grossly overstates the effectiveness of DDT.  Deaths from malaria numbered nearly 3 million a year in the late 1950s; by the middle 1960s, the death rate hovered near 2 million per year.  Today, annual death rates are under a million — less than half the death rate when DDT use was at its peak.  Were DDT the panacea Milloy claims, shouldn’t the death numbers go the other way?

Milloy gets away making wild, misleading and inaccurate claims when editors don’t bother to read his stuff, and they don’t bother to ask “does this make sense?”  Nothing Milloy claims could be confirmed with a search of PubMed, the most easily accessible, authoritative data base of serious science journals dealing with health.

Obviously, Washington Times didn’t bother to check.  Were all the fact checkers let go?

Even more lunatic

Milloy also attacked the decision to get lead out of gasoline.  Ignoring all the facts and the astoundingly long history of severe health effects from lead pollution, Milloy dropped this stinking mental turd:

As to leaded gasoline, we can safely say that leaded gasoline helped provide America and the world with unprecedented freedom and fueled tremendous prosperity. We don’t use leaded gasoline in the United States anymore, but more because people simply don’t like the idea of leaded gasoline as opposed to any body of science showing that it caused anybody any harm. It’s the dose that makes the poison, and there never was enough lead in the ambient environment to threaten health.

The U.S. found that getting lead out of gasoline actually improved our national IQ.  Lead’s health effects were so pervasive, there was an almost-immediate improvement in health for the entire nation, especially children, when lead was removed.  Denying the harms of tetraethyl lead in gasoline goes past junk science, to outright falsehood.

What is Milloy’s fascination with presenting deadly poisons as “harmless?”  Why does he hate children so?

Why do publications not catch these hallucination-like errors and junk science promotions when he writes them?

Antidote to DDT poisoning in humans:  Spread the facts:

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False claims on DDT

June 6, 2010

One wishes Rachel Carson were still alive, to sue for slander.

One of the more interesting ways claims like those of Rich Kozlovich can continue to circulate, they are not based on any scientific studies.  Had Kozlovich made such claims in a scientific journal, they would have to be retracted. The claims in favor of DDT made at that site are pure hoax, junk science, bogus science, voodoo science (pick your favorite term).

Kids aren’t dying for a lack of pesticides — DDT is still available and cheap in India, China and across Africa.  Malaria is a disease, and it can’t be cured in humans by poisoning the environment.  Malaria’s spread can’t be stopped until we cure in humans so mosquitoes have no pool of disease to draw from, to spread to the next victim.

More:


DDT-style problems remain

June 2, 2010

As evidenced by this announcement of newly-proposed regulations on pesticides in water.

From the EPA, pure and unedited:

FOR IMMEDIATE RELEASE

June 2, 2010

EPA Proposes New Permit Requirements for Pesticide Discharges

Action would reduce amount of pesticides discharged and protect America ’s waters

WASHINGTON The U.S. Environmental Protection Agency (EPA) is proposing a new permit requirement that would decrease the amount of pesticides discharged to our nation’s waters and protect human health and the environment. This action is in response to an April 9, 2009 court decision that found that pesticide discharges to U.S. waters were pollutants, thus requiring a permit.

The proposed permit, released for public comment and developed in collaboration with states, would require all operators to reduce pesticide discharges by using the lowest effective amount of pesticide, prevent leaks and spills, calibrate equipment and monitor for and report adverse incidents. Additional controls, such as integrated pest management practices, are built into the permit for operators who exceed an annual treatment area threshold.

“EPA believes this draft permit strikes a balance between using pesticides to control pests and protecting human health and water quality,” said Peter S. Silva, assistant administrator for EPA’s Office of Water.

EPA estimates that the pesticide general permit will affect approximately 35,000 pesticide applicators nationally that perform approximately half a million pesticide applications annually. The agency’s draft permit covers the following pesticide uses:  (1) mosquito and other flying insect pest control; (2) aquatic weed and algae control; (3) aquatic nuisance animal control; and (4) forest canopy pest control. It does not cover terrestrial applications to control pests on agricultural crops or forest floors.  EPA is soliciting public comment on whether additional use patterns should be covered by this general permit.

The agency plans to finalize the permit in December 2010.  It will take effect April 9, 2011. Once finalized, the pesticide general permit will be used in states, territories, tribal lands, and federal facilities where EPA is the authorized permitting authority.  In the remaining 44 states, states will issue the pesticide general permits. EPA has been working closely with these states to concurrently develop their permits.

EPA will hold three public meetings, a public hearing and a webcast on the draft general permit to present the proposed requirements of the permit, the basis for those requirements and to answer questions. EPA will accept written comments on the draft permit for 45 days after publication in the Federal Register.

More information on the draft permit: http://www.epa.gov/npdes

R197

Note: If a link above doesn’t work, please copy and paste the URL into a browser.

View all news releases related to water

Let me repeat for emphasis, from the press release:  “EPA will accept written comments on the draft permit for 45 days after publication in the Federal Register.”


DDT: One of the 50 worst inventions

May 30, 2010

Time Magazine recently proposed a list of the “50 worst inventions.”

Wouldn’t you know it?  The piece was published on May 27, the anniversary of Rachel Carson’s birth (just to give fuel to the fire of the conspiratorialists), and DDT was listed as one of the 50 worst inventions.

After the war, use exploded: from 1942 to 1972, some 1.35 billion lb. of DDT were used in the U.S.

But absent from the DDT mania was consideration of the environmental effects of dumping millions of pounds of potent pesticides each year. Rachel Carson’s seminal 1962 environmental tract Silent Spring was the first to call attention to the nasty little fact that DDT produced fertility and neurological problems in humans and accumulated up the food chain in wildlife, poisoning birds. Use of the compound plummeted, and in 1972, DDT was banned in the U.S. entirely.

The list is more humorous than accurate, but it’s nice to see a journal that doesn’t suffer from DDT poisoning to make it claim, against the facts, that DDT is a miracle chemical with no harms.
Other inventions among the 50 worst, according to Time:

Instapundit’s Glenn Reynolds poisoned by DDT

May 24, 2010

You can read about it here, at Instapundit.

Reynolds wants DDT back because dengue fever showed up at Key West.  News for Reynolds:  We see it in Texas all the time, but usually among poorer people with Hispanic heritage who live along the Rio Grande.  (Funny how these conservative nutballs all worry about people, so long as they’re white, and rich enough to travel to tropical vacation spots; where’s Reynolds to worry about the people who supply his fruits and vegetables?)

One solution:  Improve health care to cure humans with dengue, and then mosquitoes that spread it have no pool of infection to draw from — mosquito bites become just mosquito bites.

Other preventives:  Drain mosquito breeding areas (tires, flower pots, potholes, etc.) within 50 yards of human habitation.  Mosquitoes don’t fly far, and if they can’t breed where people are, they won’t travel to find human victims.

Stupid, destructive solutions:  Spray DDT.  DDT kills insects, bats and birds that prey on mosquitoes much more effectively than it kills mosquitoes, and mosquitoes evolve resistance faster, and rebreed faster. DDT is especially deadly against brown pelicans — maybe Reynolds figures we don’t need to worry about them any more, since they’re under assault from the oil slick that threatens to kill the estuaries of Louisiana.  Were he concerned about the birds, surely he’d have realized his error, right?

So, why did Glenn Reynolds get stupid about DDT?  Why is he promoting DDT, instead of promoting ways to fight dengue?

____________

But, then, Glenn Reynolds has been a fool for poisoning (anyone but himself) for a long time:

_____________

United Conservatives of Virginia swallow the DDT poison, too.  Don’t these people ever study history?

Transmission of Dengue Fever

Transmission of Dengue Fever

Help Glenn Reynolds recover from DDT poisoning, let others know the facts:

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Good news: Warming probably won’t expand malaria much

May 19, 2010

A paper in the May 20 edition of Nature reports that global warming probably won’t expand the range of malaria much.  That’s good news.

Here’s the press release from the University of Florida, touting the paper written by two University of Florida researchers, among others:

Scientists: Malaria control to overcome disease’s spread as climate warms

Filed under Environment, Health, Research on Wednesday, May 19, 2010.

GAINESVILLE, Fla. — Contrary to a widespread assumption, global warming is unlikely to expand the range of malaria because of malaria control, development and other factors that are at work to corral the disease.

So concludes a team of scientists including two University of Florida researchers in a paper set to appear May 20 in the journal Nature.

Scientists and public policy makers have been concerned that warming temperatures would create conditions that would either push malaria into new areas or make it worse in existing ones. But the team of six scientists, including David Smith and Andy Tatem, faculty members with UF’s biology and geography departments and both at UF’s Emerging Pathogens Institute, analyzed a historical contraction of the geographic range and general reduction in the intensity of malaria — a contraction that occurred over a century during which the globe warmed. They determined that if the future trends are like past ones, the contraction is likely to continue under the most likely warming scenarios.

“If we continue to fund malaria control, we can certainly be prepared to counteract the risk that warming could expand the global distribution of malaria,” Smith said.

The team, part of the Wellcome Trust’s multinational Malaria Atlas Project, noted that malaria control efforts over the past century have shrunk the prevalence of the disease from most of the world to a region including Sub-Saharan Africa, Southeast Asia and South America, with the bulk of fatalities confined to Africa. This has occurred despite a global temperature rise of about 1 degree Fahrenheit, on average, during the same period.

“The globe warmed over the past century, but the range of malaria contracted substantially,” Tatem said. “Warming isn’t the only factor that affects malaria.”

The reasons why malaria has shrunk are varied and in some countries mysterious, but they usually include mosquito control efforts, better access to health care, urbanization and economic development. The banned pesticide DDT was instrumental in ridding the disease from 24 countries in Southern Europe, the former Soviet Union and elsewhere in the world between 1955 and 1969, Smith said. Researchers debate how the U.S. defeated malaria, but the reduction of mosquito breeding grounds, improved housing and reduced emphasis on agriculture that comes with development — and the reduced risk of bites that accompanies urbanization – probably played a role, Smith said.

“There is no one tale that seems to determine the story globally,” Tatem said. “If we had to choose one thing, we would guess economic development, but that’s kind of a cop out” because the specific mechanisms may still remain unclear, and controlling malaria might also help to kick-start development.

In any case, current malaria control efforts such as insecticide-treated bed nets, modern low-cost diagnostic kits and new anti-malarial drugs, have proved remarkably effective, with more and more countries achieving control or outright elimination. Unless current control efforts were to suddenly stop, they are likely to counteract the spread of mosquitoes or other malaria-spreading effects from anticipated temperature increases, Smith said.

Simon Hay, an author of the Nature paper and one of the chief architects of the Malaria Atlas Project, noted that modern malaria control efforts “reduce transmission massively and counteract the much smaller effects of rising temperatures.”

“Malaria remains a huge public health problem, and the international community has an unprecedented opportunity to relieve this burden with existing interventions,” he said. “Any failure in meeting this challenge will be very difficult to attribute to climate change.”

Key to controlling malaria is the treatment of the disease in human victims.  Malaria parasites must spend part of their life cycle in humans; if medical care can cure humans, mosquitoes have no well of the disease to draw from, to spread it.

This paper says that global warming won’t spread the disease, so long as medical care and local health officials can keep effective treatments — a complete cure for human victims — coming quickly.

Resources:


Wall Street Journal’s DDT-fueled war on science

May 12, 2010

I don’t subscribe to the Wall Street Journal — their discounts to educators are lousy.

So I missed this editorial when it ran on April 24, 2010 (page A12), “DDT and population control – malaria still kills one million every year.”

Nominally, that should be good news.  At the peak of DDT use in the early 1960s, malaria killed about 3 million people annually.  By the time we banned DDT use on cotton crops in the U.S., the death toll was still about 2 million people annually.  From the heyday of DDT, we’ve decreased malaria’s death toll, to less than half what it was.

Editorial writers at the Journal don’t let facts get in their way when they go off on a misdirected political jihad or crusade.  Gross error Number 1:  They mislead readers about the facts.

They are claiming that a million is too many (it is), but they claim that the total would be significantly less if only Americans would attack Africa with poison.  We have trouble enough with wars in Afghanistan and Iraq, it seems to me.  There is no indication that we could reduce malaria rates with a lot of extra poison.  Malaria is a parasite in human blood.  To defeat the disease we have to defeat the infections in humans.  Mosquitoes just spread the disease from one human to another.  DDT does not cure malaria in humans; it is one preventive device of limited effectiveness.

What are they on about?

The Journal’s editorial writers said:

Environmental activists this week marked the 40th anniversary of Earth Day, which happened to fall three days before World Malaria Day. Insofar as Earth Day politics have contributed to today’s malaria epidemic, the two events are related.

You could see this one coming.  The reactionaries at the editorial seek out opportunities to criticize environmentalists, whose cause they see as anti-business.   The Journal’s editorial page usually carries an op-ed piece by Hoover Institute maven Henry I. Miller about once a year (see here, for example), claiming we need DDT to fight West Nile virus.  We don’t, of course.  West Nile virus-carrying mosquitoes are best fought with other pesticides, when pesticides are used.  They need to be hit before adulthood, while they are still larva, in the water.  DDT is exactly wrong for such applications.  But Miller’s piece comes around almost every year, as soon as the first West Nile virus infections in humans are noted.

So, since they so soundly disregard science on that diatribe, why not here, too?  DDT offers a great target for Tea Baggers, Know-Nothings, and truth bashers.  Most of the history of DDT was written before the internet, so it’s easier to spread falsehoods without contradiction.

Disinformation.  Propaganda.  Shame on the Wall Street Journal.

Earth Day and World Malaria Day are related in this way:  Environmentalists warned us that doing the wrong stuff in the environment would make it harder to fight malaria, and they were right.  People who resist clean air and clean water legislation also resist legislation to stop poisoning our planet.  Those people rarely do anything to fight malaria, either.  Human comfort, human health, human survival, is not what they are concerned about.

Earth Day founder Gaylord Nelson, a U.S. Senator from Wisconsin, was a leading opponent of the insecticide DDT, which remains the cheapest and most effective way to combat malarial mosquitoes.

Gaylord Nelson, the father of Earth Day, was governor of Wisconsin when the University of Wisconsin did the first studies showing that songbirds and raptors in Wisconsin were being wiped out by DDT. We should expect him to be an opponent of indiscriminate use of the stuff.  His state was on the road to ruin, and long before the federal government acted against DDT, Wisconsin had laws and regulations to limit its use.  Wisconsin’s wild populations recovered a bit more quickly because Wisconsin had acted.

Gaylord Nelson at the Apostle Islands, Photograph by Frank Wallick, 1967.

Gaylord Nelson at the Apostle Islands, Photograph by Frank Wallick, 1967.

Nelson also knew that, in the U.S., malaria was conquered by 1939 (according to the Centers for Disease Control).  DDT came along in 1946, seven years later.  While DDT was used to control mosquitoes in the U.S., it was for no disease control reasons — that was why so many people opposed the rather pointless use of the stuff.  And I suspect Nelson was savvy enough to know that DDT has not been the cheapest means of controlling mosquitoes for several years.  One application of DDT in Africa costs about $12.00, for the professional who must apply it, and the testing to determine whether DDT will even work.  One application lasts about six months.  So, for a year’s protection, DDT costs about $24.00 per house, per year.

Bednets cost about $10.00, and last about five years.  That works out to $2.00 year.  For $24.00, you could provide a dozen different nets in a home, though most homes would use them only to protect children.

Moreover, recent test runs in Africa show DDT about 25% to 50% effective in reducing malaria incidence, while bednets are about 50% to 85% effective.  Nets are cheaper and more effective.

Doesn’t the Wall Street Journal have fact checkers?  Or do they just not care about the facts?

Rachel Carson’s 1962 book, “Silent Spring,” misleadingly linked pesticides to cancer and is generally credited with popularizing environmental awareness.

Wrong on three fronts.  Carson noted that the family of chemicals from which DDT comes might have links to cancer, but she did not make the claim that DDT is carcinogenic.  DDT was banned because it’s a long-term, deadly poison that destroys ecosystems.  Cancer in humans was not a part of the equation.

However, DDT is now known to be a weak human carcinogen.  Every cancer-fighting agency on Earth lists it as a “probable human carcinogen” (it is confirmed to cause cancer in other mammals).  Can’t the Wall Street Journal find the phone number of the American Cancer Society?

DDT earned its ban because of 20 years of research data by 1972, showing that DDT kills virtually everything it comes in contact with that is smaller than a large man, and it destroys ecosystems.  Talking about DDT’s carcinogenicity is a red herring.  Carson didn’t claim DDT was a significant cause of cancer, nor was DDT banned from agricultural use because anyone thought it was a significant cause of cancer.  Yes, DDT is a weak human carcinogen, contrary to the Journal’s implication; but no, that’s not why it was banned.

Carson’s book certainly ignited concerns about human activities affecting environment other than land development.  But “environmental awareness” is as old as our nation, at least.  A hundred years prior to Rachel Carson’s book, the U.S. set aside the world’s first National Park, Yellowstone.  60 years earlier, Teddy Roosevelt and Gifford Pinchot led the drive to conserve the nation’s forests.  The Soil Conservation Service, a New Deal program, worked to save soil on farms and unimproved areas, a good 30 years before Carson’s book.  Environmental awareness is an almost-congenital trait in Americans.  Rachel Carson sounded alarms about new reactive chemical combinations.  Americans were already alert to the need to save soil, water, air and wild spaces.

We banned DDT to save our crops and to save our wildlife.  Those are good reasons to keep the ban today.

But other leading greens of the period, including Nelson, biologist Paul Ehrlich and ecologist Garrett Hardin, were also animated by a belief that growth in human populations was harming the environment.

Nelson thought the U.S. needed to slow immigration (see more below).  Ehrlich feared a massive round of starvation, which was staved off only with the Green Revolution and billions of dollars of foreign aid money, the good luck of our having Norman Borlaug and the Rockefeller Foundation, and major economic change in nation’s like India and China.  Hardin pointed out that even the best intentioned people needed a structure to encourage them to conserve, else conservation would not take place.

They all recognized that while any human could minimize her impact on the natural world, no one person could ameliorate all the effects of billions of people.

“The same powerful forces which create the crisis of air pollution also are threatening our freshwater resources, our woods, our wildlife,” said Nelson. “These forces are the rapid increase in population, industrialization, urbanization and scientific technology.”

Notice, please, that Sen. Nelson did not suggest humans should do anything to cause or encourage massive human death (nor did the Journal do the courtesy of noting where they quoted him from).  He merely notes that air pollution and water pollution, and a lack of freshwater, are created by human populations, industry, urban sprawl and technology.  All of these things threaten human health.  Nelson is concerned that we not add to human illness and misery.  That’s not what the Journal’s editorial wants you to think, however.  It will suggest instead that Nelson urged more human suffering and death.

How craven must an editorial board be to accuse good people, falsely, of such sins?

In his book “The Population Bomb,” Mr. Ehrlich criticized DDT for being too effective in reducing death rates and thus contributing to “overpopulation.”

I doubt it.  I can’t find anything quite to that description in my copy of the book.  It’s a common internet legend (one level dumber than urban legend) — but shouldn’t the Wall Street Journal have higher standards than to use for documentation, “my cousin Clem heard a story about a person his aunt once knew?”

Hardin opposed spraying pesticides in the Third World because “every life saved this year in a poor country diminishes the quality of life for subsequent generations.”

Now the Journal is making things up.  In the essay from which the Journal quotes him, Hardin wrote about the dangers of uncontrolled immigration and population growth — almost sounding like an angry Arizona Tea Partier at times — but never did he get close to suggesting that we should not suppress malaria, for any reason.  (Wise readers may wish to see what Hardin actually said, where he really went awry if he did, and how his words resonate today, at his essay, “Living on a Lifeboat.”  Writers at the Journal should be ashamed of savaging the reputation of a guy who is so much in tune with what they usually write.  Notice Hardin does not mention DDT, use of pesticides in foreign nations, malaria, nor any other disease.  He rails at starvation, however.)  When the Wall Street Journal engages in fiction, shouldn’t they let us know?

For these activists, malaria was nature’s way of controlling population growth, and DDT got in the way.

Gee, in context, that’s all fiction. Never did Sen. Gaylord Nelson claim malaria was a good population control tactic, nor that we should stop using DDT to allow more people to die. Those are whole cloth lies. Never did Garrett Hardin say either of those things. Never did Paul Ehrlich say those things.

Cover of 2003 Science Magazine special on Garrett Hardin's essay

Cover of 2003 Science Magazine special on Garrett Hardin’s essay, “Tragedy of the Commons”

For anti-science activists, like the writers at the Wall Street Journal’s editorial page, falsehoods have become coin of the realm, and DDT is just one more sciency thing to try to use as whip against political opponents. The serious question is, why is the Wall Street Journal opposed to clean air and clean water?  Why are they trying to politicize things at all?

The writers at the Journal continue:

Today, malaria still claims about one million lives every year—mostly women and children in sub-Saharan Africa. There’s no evidence that spraying the chemical inside homes in the amounts needed to combat the disease harms humans, animals or the environment. Yet DDT remains severely underutilized in the fight against malaria because the intellectual descendants of Senator Nelson continue to hold sway at the World Health Organization and other United Nations agencies.

Full disclosure would be good here.  Malaria death rates are at the lowest point in history, at least since 1900.  Yes, too many die — but it’s not the fault of “not enough DDT.”  No nation that uses DDT has ever succeeded in eradicating malaria with pesticides alone.  Only those nations that assaulted malaria from the  human side, treating malaria in human victims, have been successful in eradicating the disease.  DDT use was essentially suspended in Africa by the World Health Organization in about 1965, because overuse of DDT in agriculture had bred mosquitoes that are resistant and immune to the stuff.  No amount of DDT spraying, anywhere, can reverse that.  Spraying DDT where mosquitoes are unaffected by it, is stupid.

Plus, studies indicate a correlation between DDT use, even in those small amounts, and premature deaths to children in the households sprayed.  DDT is not harmless.  DDT is not benign.

DDT has never been banned in Africa, and even under the 2001 Persistent Organic Pesticides Treaty (POPs) DDT has a special carve out to keep it available to fight malaria, despite its being a destroyer of worlds.  So implicit in the Journal’s screed here is that Africans are too stupid or lazy to use a substance that would save their children and themselves from malaria, though it’s available relatively cheaply.

Is DDT “underutilized?”  Again we should ask, why would anyone use DDT where it is not effective? Then we should ask, who would use DDT in fighting disease in Africa, and do they use it?  It turns out that DDT is not completely superfluous to all mosquito populations.  But testing is required to be sure DDT will work — were an organization to use ineffective pesticides, thousands could die, and the testing is therefore a preservation of human life.  And, because of past incidents in Africa, for example when DDT killed off the fish local populations depend on for their food, DDT use is extremely limited, to indoor applications only, and only by trained professionals who limit its spread.

WHO has been using DDT in Africa for indoor residual spraying (IRS) since the 1950s.  Use was slowed when DDT’s effectiveness was compromised.  In recent years WHO held a press conference on DDT to encourage locals who fear DDT poisoning to go along, and since 2005 DDT’s effectiveness appears to be dropping.  But DDT is available for use wherever it is needed to fight malaria in Africa.

Is the Wall Street Journal calling for mass poisoning of Africa?  What else could they be talking about?  Why would they call for such a thing?

The Journal claims WHO and other UN agencies are “under the sway” of Sen. Nelson, and that’s bad?  Let’s be clear:  Nelson didn’t oppose use of DDT in Africa to fight malaria.  UN’s WHO is the leading continent-wide advocate of proper use of DDT to fight malaria.  If the Journal claims that current, appropriate use of DDT is too little, what is the Journal advocating?

The good news is that the Obama Administration has continued the Bush policy of supporting DDT spraying in Zambia, Mozambique and other countries where the locals want it used. “Groups like the Pesticide Action Network have lobbied the U.S. Agency for International Development to stop spraying DDT, and Obama is ignoring them so far,” says Richard Tren of Africa Fighting Malaria, an advocacy group. “They’re prioritizing what makes sense from a science and public health point of view.”

Let’s be clear:  The Bush administration refused to allow U.S. money to be used to purchase DDT, or to use DDT, until about 2005.  Environmental Defense, the organization that first sued to stop DDT use in the U.S., argued for years that DDT should be allowed in the limited use WHO proposed, but Bush’s people stood firmly opposed, though never explaining why.  In any African nation where local people want DDT, it’s freely available with other money, of course.  So U.S. opposition, bizarre as it was, was not and is not a barrier to DDT use.

Most environmental groups favor beating malaria, and if a bit of DDT carefully controlled will help do the trick, so much the better.  While business lobbyists have falsely impugned environmentalists for years on this point, actual opposition to DDT use has come, in Uganda for example, from business groups.  Tobacco growers claim they fear some DDT will somehow get on tobacco leaves, and that will make the stuff unsaleable in the European Union.  Cotton growers fear any faint traces of DDT will ruin sales of organic cotton to the EU.  These business groups sued to stop DDT use against malaria in Uganda.

But environmental organizations, like ED, the Sierra Club, and others, have been fighting malaria for 40 years.

Which is more than we can say for Richard Tren.  Tren is one of two or three of the leading false propagandists for poisoning Africa in the world.  He tells false tales about Rachel Carson, false tales about DDT’s harms and effectiveness, and as best I can tell he has never lifted one finger or written one check to fight malaria himself, while taking tens of thousands of dollars to spread his false tales.

There are dozens of noble malaria fighters out there whose opinions we should seek — Socrates Litsios, the late Fred Soper, to mention two.  Why does the formerly august Wall Street Journal use Richard Tren as a source, when there are authoritative people handy to talk?

DDT helped to eradicate malaria in the U.S. and Europe after World War II, and the U.S. is right to take the lead in reforming public health insecticide policy and putting the lives of the world’s poor above green ideology.

Printed in The Wall Street Journal, page A12

According to the history of malaria at the CDC, malaria was essentially wiped out in the U.S. by 1939.  DDT was not available for use for another seven years.  Malaria was gone from northern Europe by World War II.  DDT was a tool in the final eradication of the disease in Italy and Greece.  But the main campaign against malaria was in curing the disease in humans, before the mosquito populations could rise up.

Among the nasty facts of science the Journal either does not know, or refuses to say, DDT can’t eradicate mosquitoes.  In anti-malaria campaigns, DDT is used to knock down the mosquito populations temporarily, so that the disease can be cured in humans.  Mosquito populations will quickly rise again, and in even greater numbers — but if there is no human reservoir of malaria parasites for mosquitoes to draw from, they cannot spread the disease.  Malaria parasites must spend part of their life cycle in humans, and part in mosquitoes.

Curing malaria in humans is the tough part.  It requires money to improve medical care, for accurate and speedy diagnoses, and for prompt and complete treatment of the disease in each patient.  Preventing malaria is aided greatly by better-built homes with screens on windows, the sort of stuff that requires people to have more than subsistence incomes.  So beating malaria generally requires economic development, too.

How much easier is it to bash environmentalists than to confront the real causes of malaria.  Bashing environmentalists won’t do anything to relieve human suffering nor eliminate the disease, so we can bash environmentalists again next World Malaria Day, and next Earth Day — all at no cost to us, safe in our Wall Street Journal offices in Manhattan, New York, U.S.A.  The Journal has fallen victim to bold purveyors of junk and voodoo science, and bogus and voodoo history.  Shame on the Journal.

Curing the disease in humans means the mosquitoes are mere nuisances, and no longer vectors of disease.  Killing the mosquitoes with poison means the disease will be back with a vengeance in a few weeks or months.  Curing humans is more difficult, and more costly — but it saves lives and can save Africa.  We cannot poison Africa to health.

It’s curious, though:  How did they get so poisoned by DDT, up in that office building?

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The Nature Conservancy: Rachel Carson

May 3, 2010

It’s way too short, but a great idea.

More:


Quote of the moment: Jonathan Weiner’s Pulitzer-winning explanation of mosquitoes developing immunity to DDT

April 30, 2010

When evolutionists study these worldwide resistance movements, they see four classes of adaptations arising, because an insect under attack has four possible routes to survival.

Jonathan Weiner, author of The Beak of the Finch

Jonathan Weiner, author of The Beak of the Finch, a story of evolution in our time

First, it can simply dodge. Strains of malarial mosquitoes in Africa used to fly into a hut, sting someone, and then land on the hut wall to digest their meals. In the 1950s and 1960s health workers began spraying hut walls with DDT. Unfortunately in every village there were always a few mosquitoes that would fly in through the window, bite, and fly right back out. Millions of mosquitoes died, but these few survived and multiplied. Within a short time almost all of the mosquitoes in the villages were hit-and-run mosquitoes.

Second, if an insect cannot dodge, it can evolve a way to keep the poison from getting under its cuticle. Some diamondback moths, if they land on a leaf that is tainted with pyrethroids, will fly off and leave their poisoned legs behind, an adaptive trick known as “legdrop.”

Third, if the insect can’t keep the poison out, it may evolve an antidote. A mosquito species called Culex pipiens can now survive massive doses of organophosphate insecticides. The mosquitoes actually digest the poison, using a suite of enzymes known as esterases. The genes that make these esterases are known as alleles B1 and B2. Many strains of Culex pipiens now carry as many as 250 copies of the B1 allele and 60 copies of the B2.

Because these genes are virtually identical, letter by letter, from continent to continent, it seems likely that they came from a single lucky mosquito. The mutant, the founder of this particular resistance movement, is thought to have lived in the 1960s, somewhere in Africa or Asia. The genes first appeared in Californian mosquitoes in 1984, in Italian mosquitoes in 1985, and in French mosquitoes in 1986.

Cover of Jonathan Weiner's book, The Beak of the Finch, a story of evolution in our time

Finally, if the insect can’t evolve an antidote,it can sometimes find an internal dodge. The poison has a target somewhere inside the insect’s body. The insect can shrink this target, or move it, or lose it. Of the four types of adaptations, the four survival strategies, this is the hardest for evolution to bring off — but [entomologist Martin] Taylor thinks this is how Heliothis [virescens, a cotton boll-eating moth] is evolving now.

“It always seems amazing to me that evolutionists pay so little attention to this kind of thing,” says Taylor. “And that cotton growers are having to deal with these pests in the very states whose legislatures are so hostile to the theory of evolution. Because it is evolution itself they are struggling against in their fields each season. These people are trying to ban the teaching of evolution while their own cotton crops are failing because of evolution. How can you be a creationist farmer any more?”

Jonathan Weiner, The Beak of the Finch, a story of evolution in our time, Alfred A. Knopf 1994, pp. 254-255. The book won the Pulitzer Prize for general non-fiction in 1995.


Decline and fall of the Wall Street Journal — DDT poisoning to blame?

April 27, 2010

Rupert Murdoch’s purchase of the Wall Street Journal provoked groans in 2007, but especially among those of us who had dealt with the news teams of the paper over the previous couple of decades.

For good reason, we now know.  An opposite-editorial page article in the European edition shows why.

Wall Street Journal images - Gothamite New York image

Richard Tren and Donald Roberts, two anti-environmentalist, anti-science lobbyists, wrote a slam at scientists, environmentalists, malaria fighters and the UN, making false claims that these people somehow botched the handling of DDT and allowed a lot of children to die.  Tren, Roberts and the Wall Street Journal should be happy to know that their targeting essentially public figures, probably protects them from libel suits.

Most seriously, the article just gets the facts wrong.  Facts of science and history — easily checked — are simply stated erroneously.  Sometimes the statements are so greatly at odds with the facts, one might wonder if there was malignant intent to skew history and science.

This is journalistic and newspaper malpractice.  Any national journal, like the WSJ, should have fact checkers to check out at least the basic claims of op-ed writers.  Did Murdock fire them all?  How can anyone trust any opinion expressed at the Journal when these guys get away with a yahoo-worthy, fact-challenged piece like this one?

Tren and Roberts make astounding errors of time and place, attributing to DDT magical powers to cross space and time.  What are they thinking?  Here are some of the errors the Journals fact checkers should have caught — did Murdoch fire all the fact checkers?

  1. Beating malaria is not a question of having scientific know howCuring a disease in humans requires medical delivery systems that can diagnose and treat the disease.  DDT does nothing on those scores.  Beating malaria is a question of will and consistency, political will to create the human institutions to do the job.  DDT can’t help there.
  2. DDT wasn’t the tool used to eradicate malaria from the U.S.  The U.S. Centers for Disease Control — an agency set up specifically to fight diseases like malaria — says malaria was effectively eradicated from the U.S. in 1939.  DDT’s pesticide capabilities were discovered in mid-1939, but DDT was not available to fight malaria, for civilians, for another seven years.  DDT does not time travel.
  3. DDT doesn’t have a great track record beating malaria, anywhere. Among nations that have beaten malaria, including the U.S., the chief tools used were other than pesticides.  Among nations where DDT is still used, malaria is endemic.  DDT helped, but there is no place on Earth that beat malaria solely by spraying to kill mosquitoes.  Any malaria fighter will tell you that more must be done, especially in improving medical care, and in creating barriers to keep mosquitoes from biting.
  4. Beating malaria in the U.S. involved draining breeding areas, screening windows to stop mosquitoes from entering homes, and boosting medical care and public health efforts. These methods are the only methods that have worked, over time, to defeat malaria.  Pesticides can help in a well-managed malaria eradication campaign, but no campaign based on spraying pesticides has ever done more than provide a temporary respite against malaria.
  5. DDT is not a magic bullet against malaria. Nations that have used DDT continuously and constantly since 1946, like Mexico, and almost like South Africa, have the same malaria problems other nations have.  Nations that have banned DDT have no malaria.
  6. DDT has never been banned across most of the planet.  Even under the pesticide treaty that specifically targets DDT-classes of pesticides for phase out, there is a special exception for DDT.  DDT was manufactured in the U.S. long after it was banned for agricultural use, and it is manufactured today in India and China.  It is freely available to any government who wishes to use it.
  7. People in malaria-prone areas are not stupid. Tren and Roberts expect you to believe that people in malaria-prone nations are too stupid to buy cheap DDT and use it to save their children, but instead require people like Tren and Roberts to tell them what to do.  That’s a pretty foul argument on its face.
  8. DDT is a dangerous poison, uncontrollable in the wild. Tren and Roberts suggest that DDT is relatively harmless, and that people were foolish to be concerned about it.  They ignore the two federal trials that established DDT was harmful, and the court orders under which EPA (dragging its feet) compiled a record of DDT’s destructive potential thousands of pages long.  They ignore the massive fishkills in Texas and Oklahoma, they ignore the astounding damage to reproduction of birds, and the bioaccumulation quality of the stuff, which means that all living things accumulate larger doses as DDT rises through the trophic levels of the food chain.  Predatory birds in American estuaries got doses of DDT multiplied millions of times over what was applied to be toxic to the smallest organisms.
    DDT was banned in the U.S. because it destroys entire ecosystems.  The U.S. ban prohibited its use on agriculture crops, but allowed use to fight malaria or other diseases, or for other emergencies.  Under these emergency rules, DDT was used to fight the tussock moth infestation in western U.S. forests in the 1970s.
  9. Again, DDT’s ban in the U.S. was not based on a threat to human health. DDT was banned because it destroys natural ecosystems. So any claim that human health effects are not large, misses the point.  However, we should not forget that DDT is a known carcinogen to mammals (humans are mammals).  DDT is listed as a “probable human carcinogen” by the American Cancer Society and every other cancer-fighting agency on Earth.  Why didn’t the Journal’s fact checkers bother to call their local cancer society?  DDT is implicated as a threat to human health, as a poison, as a carcinogen, and as an endocrine disruptor.  Continued research since 1972 has only confirmed that DDT poses unknown, but most likely significant threats to human health.  No study has ever been done that found DDT to be safe to humans.
  10. Use of DDT — or rather, overuse of DDT — frequently has led to more malaria. DDT forces rapid evolution of mosquitoes.  They evolve defenses to the stuff, so that future generations are resistant or even totally immune to DDT.  Increasing DDT use often leads to an increase in malaria.
  11. Slandering the World Health Organization (WHO), Rachel Carson, the thousands of physicians in Africa and Asia who fight malaria, or environmentalists who have exposed the dangers of DDT, does nothing to help save anyone from malaria.

Tren and Roberts have a new book out, a history of DDT.  I suspect that much of the good they have to say about DDT is true and accurate.  Their distortions of history, and their refusal to look at the mountain of science evidence that warns of DDT’s dangers is all the more puzzling.

No world class journal should allow such an ill-researched piece to appear, even as an opinion.  Somebody should have done some fact checking, and made those corrections before the piece hit publication.

Full text of the WSJ piece below the fold.

Read the rest of this entry »


Strike a blow against malaria, for World Malaria Day, April 25, 2010

April 25, 2010

Today is World Malaria Day.

Not a day to celebrate malaria, but to encourage the fight against it.

What can you do?  One good thing would be to give $10 to Nothing But Nets, the campaign to get bednets for every kid in an African area affected by malaria.

Bednets save lives of kids like this 4-year old - Photo by Paul Bettings/World Vision

Bednets save lives of kids like this 4-year old - Photo by Paul Bettings/World Vision

Another thing to do would be to remember that fighting malaria does not require DDT, and in fact fighting malaria might be hampered by DDT.

Go donate.  We’ll worry about the charlatans later.


World Malaria Day, 2010 – April 25

April 18, 2010

April 25, 2010, is World Malaria Day.

Malaria plagues too many nations, still.  Between 400 million and 500 million people in the world get infected with one form of the malaria parasites every year.  About a million die, most of those children.  Death disproportionately strikes pregnant women, too.

Life cycle of malaria, from the World Health Organization (WHO)

World Health Organization (WHO) chart on the life cycle of malaria

Advances in medicines and advances in controls of the insects that help transmit the disease led to several campaigns to eradicate the disease over the past 60 years.  Malaria no longer torments most of Europe and most of North America, but it remains a serious, economy-crippling disease across Africa and Asia.

Malaria also poses as a political football.  Over the next couple of weeks you can find dozens of articles on valiant efforts to fight malaria, including the RollBack Malaria Campaign, and efforts by the Gates Foundation and histories of the work of the Rockefeller Foundation.  But you can also find a pernicious political campaign against malaria fighters and “environmentalists,” claiming that DDT is a magic potion that could have ridded the world of malaria by killing off all the mosquitoes, if only that great mass murderer, Rachel Carson, had not imposed her will on the unstable dictators of African nations who did all they could to prove to Ms. Carson that they were environmentally friendly by banning DDT.

All of that is a crock.  But we see it every year.

It’s already shown up in the formerly-known-as-accurate Wall Street Journal, European edition.  (Please watch — I may have more to say on that piece, later.)

Over the next two weeks I will ask myself a hundred times, why do these people fiddle with trying to impugn scientists, physicians and environmentalists, while fevers burn in the brains of children across Africa and Asia?

With action, hope is that we can save the million lives lost annually by stopping malaria, by 2015.  Please consider joining the effort.

You should wonder about that, too.  If you find a good answer, please let me know.

Roll Back Malaria World Malaria Day 2009