When a ship inadvertently spills oil, it’s big news. But every three years, ships intentionally dump more oil than the Exxon Valdez, and BP spills combined. This episode highlights a vexing and woefully under-discussed problem. It is made possible by corrupt ship captains who use a so-called “Magic Pipe” that dumps oil discreetly under the water line rather than disposing of it on land as legally required. To learn about this problem, the episode tells the story of Carnival’s Caribbean Princess cruise ship, which used such a pipe and was caught, convicted and hit with the biggest fine in history. This case is set in a broader context of other forms of at-sea dumping, such as plastic pollution, and highlights how the sea has long — and perilously — been viewed as a bottomless trash can. Guest Interviews: Annie Leonard, CEO of Greenpeace, creator of “The Story of Plastic” Richard Udell, DOJ Prosecutor on the Caribbean Princess Case.

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