Magazine Summary
The Newsletter of The North Texas Skeptics
Summary
This issue of The Skeptic focuses on the debate surrounding electromagnetic fields (EMFs) from power lines and their alleged link to cancer. It reviews Paul Brodeur's book 'Currents of Fear' and a PBS Frontline program that presented anecdotal evidence and a Swedish study suggesting a correlation. The newsletter critically examines the scientific community's stance, highlighting the lack of a plausible biophysical mechanism and the 'multiple comparisons fallacy' in statistical analysis. It also touches upon other health-related topics, including silicone implants, facilitated communication, Kombucha tea, and fennel oil.
Magazine Overview
The Newsletter of The North Texas Skeptics, Volume 9, Number 9, dated September 1995, features a cover headline of "Currents of Fear" and includes articles on healthy skepticism, a live radio appearance, and a statement from the American Physical Society (APS).
Currents of Fear
This main article, written by John Blanton, reviews Paul Brodeur's book "The Great Power-Line Cover-up" and the PBS television series "Frontline" episode titled "Currents of Fear." Brodeur's work posits that man-made electromagnetic fields (EMFs) from power lines are a cause of cancer in humans. The article details the case of Meadow Street in Guilford, CT, where residents attributed a high incidence of cancer to a nearby electric substation. It also mentions other sites like Slater Elementary School in Fresno, California, and Essex County Vocational Technical High School in West Caldwell, New Jersey, which are located near high-voltage transmission lines.
The article highlights the efforts of residents, such as those in Omaha, Nebraska, to correlate cancer incidence with the presence of power lines using ZIP code surveys. However, it contrasts these anecdotal and correlational findings with the scientific community's skepticism. Physicists like William R. Bennett, Jr., from Yale University, point out that the fields in question are minuscule compared to the Earth's magnetic field. The American Physical Society (APS) released a statement in April 1995 declaring that purported health effects of power line fields have not been scientifically substantiated and that the cost of mitigation and litigation is incommensurate with the risk.
The article critically examines the statistical methods used in studies, referencing the "multiple comparisons fallacy" as a potential explanation for seemingly significant correlations found in small, isolated samples. It illustrates this with computer simulations showing how random noise can obscure or mimic a signal. The article also summarizes several scientific tests conducted under controlled conditions, including studies on fetal abnormalities, reproductive cycles, lymphoma production in mice, cancer genes, melatonin levels, and pregnant women using electric blankets, all of which reportedly found no link to EMFs.
Paul Brodeur is presented as a journalist who has made EMFs and cancer a personal crusade, drawing parallels to his earlier work on asbestos. The article notes that while the link between EMFs and health is a new area of study, scientific tests continue to yield negative results.
Information is provided on how to obtain transcripts and videos of the Frontline program, as well as references to articles and statements from the APS and Physics Today.
Healthy Skepticism
Written by Tim Gorski, M.D., this section appears to be a brief introduction to a topic that is not fully detailed in the provided scan. It is followed by several short news items.
Silicone implants cleared again
A study published in the New England Journal of Medicine (NEJM 332:1666, 1995) by Harvard Medical School researchers failed to establish an association between silicone breast implants and connective tissue disorders or symptoms. The study analyzed data from the Nurses Health Study and found no increased risk among women with implants.
FTC nixes facilitated communication devices
The Federal Trade Commission (FTC) obtained consent decrees against companies marketing devices that used Facilitated Communication, a controversial method resembling a Ouija board, as aids for autistic individuals. The companies are now prohibited from promoting these devices for such purposes.
New director takes charge of NIH OAM
Wayne B. Jonas, M.D., has been appointed as the new director of the Office of Alternative Medicine (OAM) at the National Institutes of Health (NIH). His background in homeopathy and alternative methods raises questions about whether he will ensure strict scientific methodology or allow the office to become a platform for quackery.
Kombucha tea rises to popularity
The article discusses the growing popularity of Kombucha "mushroom" tea, a fermented brew. It highlights unsubstantiated health claims and raises safety concerns, including potential contamination with Aspergillus (which produces aflatoxin B), the development of antibiotic resistance, and the presence of plant acids. A recent report of a death in Spencer, Iowa, possibly linked to Kombucha consumption, is mentioned.
Fennel oil toxic, tea OK
While fennel seeds are a common folk remedy, the volatile oil extracted from them is not recommended for medicinal use. Small quantities of the oil have been reported to cause vomiting, seizures, and respiratory problems. The article clarifies that the tea itself is generally considered safe.
This section is provided by the Dallas/Fort Worth Council Against Health Fraud.
Friday night, live!
Written by John Blanton, this article recounts the experience of being interviewed on "The Evening Talk Show," a live radio program hosted by Glenn Mitchell on KERA-FM. Blanton, along with Joe Voelkering and John Thomas, discussed the Skeptics' organization and its purpose. The segment involved audience phone calls, and surprisingly, there were no hate calls, which Blanton had anticipated given the content of some letters to The Dallas Morning News.
From the APS
This section presents the full statement adopted by the APS Council in April 1995 regarding EMFs and public health. The statement reiterates that purported health effects of power line fields are not scientifically substantiated and that the costs associated with addressing these perceived risks are disproportionate. It emphasizes the lack of consistent scientific evidence and plausible biophysical mechanisms linking EMFs to cancer. The APS notes that unsubstantiated claims have led to significant financial burdens through mitigation efforts and court proceedings, diverting resources from more serious environmental problems.
Recurring Themes and Editorial Stance
The recurring theme throughout this issue is the critical examination of claims that lack robust scientific evidence, particularly concerning health risks. The North Texas Skeptics, through its newsletter, advocates for a skeptical approach, emphasizing the importance of scientific methodology, statistical validity, and peer-reviewed research. The editorial stance is clearly against unsubstantiated fears and the promotion of unproven remedies, advocating for evidence-based conclusions and responsible allocation of resources for genuine environmental and health concerns.
“Physicists are frequently asked to comment on the potential dangers of cancer from electromagnetic fields that emanate from common power lines and electrical appliances. While recognizing that the connection between power line fields and cancer is an area of continuing study by research workers in many disciplines in the United States and abroad, we believe that it is possible to make several observations based on the scientific evidence at this time.
Key Incidents
A cluster of nine houses on Meadow Street experienced a high incidence of cancer cases, which residents attributed to a nearby electric substation.
A Swedish study investigated cancer incidence among people living near high-voltage transmission lines, reporting increased risks of leukemia in children exposed to milligauss fields.
Frequently Asked Questions
What is the main topic of the article 'Currents of Fear'?
The article 'Currents of Fear' discusses the alleged link between electromagnetic fields (EMFs) from power lines and cancer, examining Paul Brodeur's book and a PBS Frontline program on the subject.
What is the scientific community's general consensus on the link between power lines and cancer?
The scientific literature and reviews by panels show no consistent, significant link between cancer and power line fields, and no plausible biophysical mechanisms have been identified. The American Physical Society states that purported health effects have not been scientifically substantiated.
What concerns are raised about Kombucha tea?
Concerns about Kombucha tea include possible contamination with Aspergillus (a potent cancer-causing substance), the development of antibiotic resistance, and the presence of plant acids, with one reported death potentially linked to its consumption.
What did the Harvard Medical School study find regarding silicone breast implants?
The Harvard Medical School study found no increased risk of connective tissue disease among women with silicone breast implants and no association with self-reported symptoms.
In This Issue
People Mentioned
- John BlantonAuthor/Editor
- Paul BrodeurAuthor
- Adrian DendingerResident
- William R. Bennett, Jr.Ph.D. physicist
- John MoulderMedical College of Wisconsin
- Susan ScheweProducer
- Glenn MitchellHost
- Joe VoelkeringSkeptic
- John ThomasSkeptic
- Ted KoppelTelevision Host
- Tim Gorski, M.D.President, Dallas/Fort Worth Council Against Health Fraud
- Wayne B. Jonas, M.D.Director, NIH OAM
- +4 more
Organisations
- The North Texas Skeptics
- The New Yorker
- Little, Brown and Company
- PBS
- Frontline
- American Physical Society (APS)
- KERA-FM
- The Evening Talk Show
- Christian Coalition
- The Dallas Morning News
- Harvard Medical School
- Nurses Health Study
- Federal Trade Commission
- Louis Blass, Inc.
- +6 more
Locations
- Meadow Street, USA
- Guilford, CT, USA
- Fresno, California, USA
- West Caldwell, New Jersey, USA
- Omaha, Nebraska, USA
- Sweden, Sweden
- New York, USA
- Washington State, USA
- Spencer, Iowa, USA
- Arlington, TX, USA
- Denver, CO, USA
- Alexandria, VA, USA