Oil spills, chemical runoffs, and additional pollutants have a profound affect on animals that live in or near the water.
Farm and city runoffs create freshwater pollution that eventually finds its way to the oceans.
Environmental benefits are tougher to pinpoint, but there is some indication that the negative effects of pesticide and chemical runoffs could be lessened.
Environmental Effects - While some experts point to the benefit of less pesticide runoffs, others question the long term effects these genetically altered foods could have on native species.