In this March 2021 image provided by Scripps Institution of Oceanography at UC San Diego, the research Vessel Sally Ride is seen off the coast of Santa Catalina Island, Calif. Marine scientists say they have found what they believe to be as many as 25,000 barrels that possibly contain DDT dumped off the Southern California coast near Catalina Island. (Scripps Institution of Oceanography at UC San Diego via AP)
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