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Altered Oceans

This five-part series on the crisis in the world's oceans was published in July and August of 2006. The series -- by reporters Kenneth R. Weiss and Usha Lee McFarling and photographer Rick Loomis -- won the 2007 Pulitzer Prize for explanatory reporting.

Part One: A Primeval Tide of Toxins

Part Two: Sentinels Under Attack

Part Three: Dark Tides, Ill Winds

Part Four: Plague of Plastic Chokes the Seas

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