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Public concerns have intensified since The Times reported in 2020 that dichlorodiphenyltrichloroethane, banned in 1972 following Rachel Carson’s “Silent Spring,” is still haunting the marine environment in insidious ways.

Public calls for action have intensified since The Times reported in 2020 that dichlorodiphenyltrichloroethane, banned in 1972, is still haunting the marine environment today.

Public calls for action have intensified since The Times reported that dichlorodiphenyltrichloroethane, banned in 1972, is still haunting the marine environment today.

Significant amounts of DDT-related compounds are still accumulating in Southern California dolphins, and a recent study linked the presence of dichlorodiphenyltrichloroethane to an aggressive cancer in sea lions.

The U.S. banned its use in 1972, but the chemical, dichlorodiphenyltrichloroethane, is so stable it continues to poison the environment and move up the food chain.