Published in 1962, 'Silent Spring' called attention to collateral damage from widespread use of synthetic pesticides. Many problems the book anticipated persist today in new forms.
Spraying from either a ground-based vehicle or an airplane is a common method for applying pesticides. Edwin Remsburg/VW Pics via Getty Images
1. Against absolutesAlthough the chemical industry attacked “Silent Spring” as anti-science and anti-progress, Carson believed that chemicals had their place in agriculture. She “favored a restrained use of pesticides, but not a complete elimination, and did not oppose judicious use of manufactured fertilizers,” writes Harvard University sustainability scholar Robert Paarlberg.
As Vail’s research shows, many crop-dusting pilots and university agricultural scientists were well aware of how little they knew about how these new tools actually worked. They attended conferences, debated practices for applying pesticides and organized flight schools that taught agricultural science along with spraying techniques. When “Silent Spring” was published, many of these practitioners pushed back, arguing that they had developed strategies for managing pesticide risks.
3. The osprey’s crash and recoveryIn “Silent Spring,” Carson described in detail how chlorinated hydrocarbon pesticides persisted in the environment long after they were sprayed, rising through the food chain and building up in the bodies of predators. Populations of fish-eating raptors, such as bald eagles and ospreys, were ravaged by these chemicals, which thinned the shells of the birds’ eggs so that they broke in the nest before they could hatch.
Today, “Along the shores of the Chesapeake Bay, nearly 20,000 ospreys now arrive to nest each spring – the largest concentration of breeding pairs in the world. Two-thirds of them nest on buoys and channel markers maintained by the U.S. Coast Guard, who have become de facto osprey guardians,” writes Poole. “To have robust numbers of this species back again is a reward for all who value wild animals, and a reminder of how nature can rebound if we address the key threats.”4.
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