Ethanol blamed for polluting the Gulf of Mexico

The U.S. corn ethanol boom will worsen pollution in the Gulf of Mexico, according to University of British Columbia researcher.

Nitrogen and phosphorus from agricultural fertilizer used in cornfields have been found to promote excess growth of algae in water bodies, which can reduce oxygen in the water creating 'dead zones.' Corn-field fertilizer is the principal cause of nitrogen pollution in the Mississippi River which drains into the Gulf.

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- David Adams