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Rachel Carson’s ‘Silent Spring’ Turns 50 – The Atlantic

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Rachel Carson’s ‘Silent Spring’ Turns 50

A half-century later, the conservationist’s warnings are as pertinent as ever.

carson-615.jpgSterling College/Flickr

Fifty years ago this month The New Yorker began publishing Rachel Carson’s Silent Spring. A series of three articles — excerpts from the book that would be published that September — appeared on June 16, 23, and 30, 1962. Under the banner of “A Reporter at Large,” Carson’s account of environmental peril resulting from the overabundant use of petrochemical-based pesticides unfolded between cartoons and genteel ads for airlines, tasteful upscale merchandise, hotels, and restaurants. It’s impossible for anyone not then an adult to imagine what it would have been like to read these pieces in 1962, a time when such chemicals were generally regarded as a modern miracle for home gardeners and industrial agriculture alike. “We thought these things were safe,” said my mother, who read Silent Spring as it rolled out in The New Yorker.

Reading Silent Spring today, it is disquieting to realize how much was already known in 1962 about the environmental health impacts of petrochemicals. Even more shocking is to recognize how little our regulatory response to these chemicals’ effects has changed, despite the past five decades’ great advances in scientific understanding.

Best known for its alarming account of DDT’s decimation of birdlife across the United States, Silent Spring is widely credited with sparking the public concern that lead to the chemical’s ban in the US ten years later. “Over increasingly large areas of the United States, spring now comes unheralded by the return of birds, and the early mornings, once filled with the beauty of bird song, are strangely silent,” Carson wrote, describing the toll pesticide use had taken on American birds. Without changes in practice, brought about in part by Silent Spring, the bald eagle (whose numbers had plummeted to about 400 breeding pairs in the continental US by 1963) might well have disappeared from the lower 48 states.

But Carson also described the accumulation of synthetic chemicals in people — including newborns — and these chemicals’ interaction with the innermost workings of living cells. “For the first time in the history of the world, every human being is now subjected to contact with dangerous chemicals, from the moment of conception until death,” Carson wrote. “These chemicals are now stored in the bodies of the vast majority of human beings, regardless of age. They occur in the mother’s milk, and probably in the tissues of the unborn child,” wrote Carson more than 40 years before an Environmental Working Group study found 287 industrial chemicals in newborns’ umbilical cord blood, and decades before the Centers for Disease Control and Prevention began finding such chemicals in the majority of Americans tested.

Now almost every day brings a new report detailing health hazards associated with synthetic chemicals. Exposure to some of these substances has been linked to increasingly widespread chronic health problems, among them diabetes, obesity, and reproductive and neurological disorders. We’ve learned that some chemicals’ adverse effects can be prompted by exceptionally low levels of exposure that occur before birth and that these biochemical alterations can be so profound that a single exposure may affect several generations. That synthetic chemicals are found routinely in human blood samples and throughout our food and water supply has become a commonplace.


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We also know that chemicals like those Carson chronicled can build up in fat tissue. We know that timing of a chemical exposure is critical to its effects on health and that children are uniquely vulnerable to such exposures. The details of our knowledge of toxicity have expanded immensely but Carson described many of these effects as well: “While the quantities so received by human infants would normally be small, they are not unimportant because children are more susceptible to poisoning than adults. This situation also means that today the average individual almost certainly starts life with the first deposit of the growing load of chemicals his body will be required to carry thenceforth.” Fifty years later our chemicals management policies are struggling to accommodate this reality.

“There are vast gaps in our knowledge,” Carson acknowledged. She also warned that a lack of information could not be taken as proof of safety. “However, there is every indication of long storage in the human body, where deposits may lie dormant like a slumbering volcano,” she wrote. “There has been no such parallel situation in medical history. No one yet knows what the ultimate consequences may be.”

Carson wrote all of this in 1962 — a time so different technologically and socially that it now almost seems a universe away. John F. Kennedy was president. The Cuban Missile Crisis was looming. The escalation of US military personnel in Vietnam had begun, growing from about 700 to more than 11,000 in the course of the year. In 1962, James Watson and Francis Crick were awarded the Nobel Prize in Physiology or Medicine for their work describing the double-helix structure of DNA. It was a year before Martin Luther King Jr.’s “I Have a Dream Speech” and three years before passage of the Voting Rights Act. Chubby Checker and Elvis Presley topped the Billboard Charts, with the Beach Boys and Peter, Paul and Mary bringing up the rear. In Vietnam, Operation Ranch Hand (originally called Operation Hades) was underway, conducting aerial spraying of defoliants — largely the dioxin-laden herbicide known as Agent Orange


Written by vaphc

June 25, 2012 at 9:40 pm

Posted in Uncategorized

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