How The Chemical Companies Fought 'Silent Spring's Inconvenient Truth

By | September 26, 2020

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Left: A 1947 pro-DDT campaign by Penn Salt Chemicals. Right: Rachel Carson's influential book. Sources: Oklahoma Conservation; Heritage Auctions

Rachel Carson's 1962 book Silent Spring questioned the use of pesticides, particularly DDT. Despite, and because of, chemical companies' campaign to discredit the book, it was widely read and it changed the way Americans felt about chemicals, public health and the environment. In postwar America, also known as the Atomic Age, there was a prevailing sense that scientific advances were improving Americans' lives more and more every day. The thought that American industry might be profiting by selling or using chemicals that had harmful effects went against the era's optimism about chemistry's benefits. Carson's book motivated Americans to question the use of chemicals and pesticides in their foods, and was a landmark text in the environmental movement that would gain momentum throughout the decade.

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Using a chemical presumed to be safe. Source: (PBS)

The Chemical That Would Create A Silent Spring

DDT, which was developed in 1939, first received notice when it was used during World War II to clear malaria-causing insects from South Pacific islands for American soldiers. The chemical, which was also being used as a delousing powder in Europe, was unusually effective in that it killed hundreds of different types of insects, rather than targeting only one or two; the inventor of DDT won the Nobel Prize. It became available for civilian use in 1945. Rachel Carson was one of only a few people to express concern over the use of the chemical.