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Dec 21, 2007

Defeating the dead zone

Off the coast of Louisiana, in the southern area of the US, the sea bottom is lifeless. The “dead zone” is caused by excess nutrients, such as nitrogen and phosphorus, coming down the Mississippi River. But knowing which nutrient is the controlling factor is crucial in deciding what should be done. So scientists at the University of Michigan have used a computer simulation to demonstrate that although phosphorus is playing a role now, it is really nitrogen that is causing the problem.

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