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Working to preserve a world under water
April 23: The Northern Mariana Islands are in history books as the site of one of World War Two's most decisive battles, but they may ultimately go down in history because former President George W. Bush made the Mariana Trench, an area the size of Arizona, a protected marine reserve. NBC's Ian Williams reports.
Teach a man to farm fish...
April 20: With 28 percent of the world's fish stocks already depleted, the U.N. says fish farming will soon provide half the fish the world eats.
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A 'sustainable' major
March 24: ASU has created a new "sustainability" major, one that combines architecture, engineering and urban planning. NBC's Anne Thompson reports.
