Rachel Louise Carson— born on 27 May, 1907 at Springdale, Pennsylvania— was the third and youngest child of Robert Carson and Maria McLean. A strong-willed girl she had made up her mind to be a writer when she was a little child. She never wrote under a pen name but permanently dropped the Louise from her name after her first book. Most people are unaware that she had a middle name and many are unaware that she wrote bestsellers other than Silent Spring.

Silent Spring, her last and most controversial book, went on sale in bookshops on the 27th of September, 1962. The publication of the book was preceded by a three-part series excerpted in The New Yorker. As anticipated by many, including Carson, the proverbial hornet’s nest was stirred with the appearance of the first part of this series on June 16, 1962.

In the early stages of the controversy, while the book was still at the printer’s, Velsicol Chemical Corporation, Chicago took up cudgels and threatened to take the publishers, Houghton Mifflin, to court for publishing misleading information about one of their products— Chlordane. When the book was published despite this threat (for every chapter had been referred to experts to avoid errors of fact) many other manufacturers of agricultural chemicals like Monsanto, American Cyanamid and Union Carbide joined the campaign against the book and its author.

While the book was the subject of controversy in the English-speaking world on both sides of the Atlantic it was translated into a number of languages so that by 1963, editions appeared in French, Italian, Swedish, German, Finnish and Dutch to be followed soon in Spanish, Japanese, Portuguese and even Icelandic.

That the book was well written was admitted by even its detractors. Rachel Carson had not toiled in vain for four long years. Being a marine biologist in an era of specialisation, she had to first master the intricacies of pesticide chemistry with its ramifications into wildlife biology, cell biology, microbiology and pest management.

Poison spray

While there were scientific papers detailing the hazards of pesticide use dating back to the mid 1940’s these were unknown to the general public. Her lifelong friend, Edwin Way Teale, was among the first to focus on the dangers of using DDT indiscriminately. He had said, “A spray as indiscriminate as DDT can upset the economy of nature as much as a revolution upsets social economy. Ninety per cent of all insects are good, and if they are killed, things go out of kilter right away”.

Having convinced herself of the dangers of indiscriminate pesticide use and having marshalled the facts she felt impelled to write saying that she, ‘would have no peace if she kept silent and could not rest until she had brought them to public attention’. She also felt that these chemicals ought to be called ‘biocides’ and not pesticides as they killed almost every living thing they came in contact with.

Human hubris

Her very brief first chapter— a mere four-pages inclusive of an illustration that took up a page and a half— is an allegory titled ‘A Fable for Tomorrow’. Only a vegetable can remain unmoved after reading this poignant tale of human hubris and its aftermath.

Very early in the book she said, “It is not my contention that chemical insecticides must never be used. I do contend that we have put poisonous and biologically potent chemicals indiscriminately into the hands of persons largely or wholly ignorant of their potentials for harm. We have subjected enormous numbers of people to contact with these poisons, without their consent and often without their knowledge.”

In panic bred from incomprehension and fear the chemical industry stooped to name calling and mud slinging.

The general public however warmed to her arguments and were outraged at the total disregard for the environment and their lives displayed by the agrochemical industry. Among the scientists too she did find strong defenders like the Nobel Laureate H J Muller and the highly respected anthropologist and thinker Loren Eisely.

Silent Spring tellingly brought to the fore the connection between environmental and human health and the consequent necessity to regulate the agrochemical industry in order to protect the environment. Thus was environmentalism born.

Silent Spring also had a profound impact on the practice of entomology particularly from the perspective of pest management. While entomologists had already begun working on alternatives to chemical insecticides as detailed in the last chapter of Silent Spring, her marshalling of the facts infused a greater sense of urgency in exploring these alternatives. More money was forthcoming for research into these newer areas. Nevertheless, to our detriment, modern pest management continues to rely heavily on the use of chemical pesticides.