Dead zone burden placed on farmers

Scientists studying the 7,000-square-mile dead zone in the Gulf of Mexico have placed much of the blame on fertiliser runoff from American farms.

Only changes in farming practices, they say, will help alleviate the hypoxic area. Scientists estimate that to eliminate the hypoxic zone in the gulf – an area that cannot sustain life because it has too little oxygen – the US should reduce the amount of excess nitrogen flowing into the Gulf by 20 percent or more. Much of this burden would be placed on farmers.

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