Genetically-inserted insecticide contaminates waterways

09/29/2010 | ScientificAmerican.com

U.S. scientists discovered traces of the Bt toxin, a bacterial protein genetically inserted into crops to kill pests, in some of the streams in the Midwest. There are concerns that the toxins from these waters could get into the Mississippi and Missouri river basin and end up in the Gulf of Mexico, where high levels of fertilizer runoff have been found.

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