"For two centuries, the town of Hermann has been known for the Missouri River. But now the river is making Hermann known for an unexpected reason: It is a hot spot for nitrate. Despite three decades of costly efforts to clean it up, the levels at Hermann have increased 75 percent since 1980."

"ANN ARBOR, Mich. -- Michael J. Potter is one of the last little big men left in organic food. More than 40 years ago, Mr. Potter bought into a hippie cafe and 'whole earth' grocery here that has since morphed into a major organic foods producer and wholesaler, Eden Foods."

"HARTFORD CITY, Ind. -- Across a wide stretch of the Midwest, sweltering temperatures and a lack of rain are threatening what had been expected to be the nation’s largest corn crop in generations."

"Wheat prices rose Wednesday as the hot, dry summer continued to take its toll on crops in the U.S. and Russia."

"Perhaps you heard the story going around today. A genetically modified grass started pumping out cyanide gas, killing a herd of cattle. CBS News had the scoop, as seen at WTVR.com in Richmond: 'Genetically modified grass linked to cattle deaths.' It’s basically a story custom-built for rapid spread around the internet. And it is basically completely wrong. The grass at issue, Tifton 85, was not genetically modified at all, but rather is a hybrid."

"NASHVILLE, Tenn. -- Laboring in the blackberry fields of central Arkansas, the 18-year-old Mexican immigrant suddenly turned ill. Her nose began to bleed, her skin developed a rash, and she vomited."

"WASHINGTON -- The EPA says it does not fly drones over the heartland to spy on farmers. It does, however, use manned aircraft to enforce anti-pollution laws. And that's a practice that a group of farm-state lawmakers want to stop."