"SEVERANCE, Colo. -- Since he was a boy in western Colorado, John Bartmann seemed destined to become a sheep man. He raised lambs with the local 4-H club and sheared them for elderly German farmers. His office is lined with paintings of sheep and a plaque honoring him for 'promoting culinary excellence' in lambs. But over the last few years, skyrocketing costs, a brutal drought and plunging lamb prices have battered Mr. Bartmann and the 80,000 ranchers across the county who raise sheep -- from a few to several thousand."

"A blue-ribbon panel of scientific and technology advisers to President Obama warns that the nation risks losing its longstanding supremacy in food production because research in agriculture has not kept up with new challenges like climate change, depleted land and water resources and emerging pests, pathogens and invasive plants."

"The Kansas City Star, in a yearlong investigation, found that the beef industry is increasingly relying on a mechanical process to tenderize meat, exposing Americans to higher risk of E. coli poisoning. The industry then resists labeling such products, leaving consumers in the dark. The result: Beef in America is plentiful and affordable, spun out in enormous quantities at high speeds, but it's a bonanza with hidden dangers. Industry officials contend beef is safer than it's ever been."

"Drought continued to expand through the central United States even as winter weather sets in, wreaking havoc on the nation's new wheat crop and on movement of key commodities as major shipping waterways grow shallow."

Cornfields -- which occupy a big fraction of U.S. farmland -- differ from normal ecosystems in that they are nearly sterile ecologically. Breeding and spraying aim to prevent anything from living but corn.

"We'll start in a cornfield — we'll call it an Iowa cornfield in late summer — on a beautiful day. The corn is high. The air is shimmering. There's just one thing missing — and it's a big thing...

...a very big thing, but I won't tell you what, not yet.

"You've heard of peak oil—the idea that the globe's easy-to-get-to petroleum reserves are largely cashed, and most of what's left is the hard stuff, buried in deep-sea deposits or tar sands. But what about peak phosphorus and potassium? ...These nutrients, which are essential for plants to grow, are extracted from soil every time we harvest crops, and have to be replaced if farmland is to remain productive."

"In the midst of the domestic energy boom, livestock on farms near oil-and-gas drilling operations nationwide have been quietly falling sick and dying. While scientists have yet to isolate cause and effect, many suspect chemicals used in drilling and hydrofracking, or fracking, operations are poisoning animals through the air, water or soil."

"YADKINVILLE -- Google, of all companies, last year got into the business of hog poop."

"The U.S. government's proposal to use the canal to deliver water to Mexico doesn't sit well with farmers and officials in the Imperial Valley."

"She may be the only boss in America who will tell you during a job interview that you really, truly, almost certainly don't want the job. Go home and think about it, she might say. Reconsider if you need. Imagine what you'll be doing."

"A top Mexican government official said Thursday that the long-awaited but highly controversial approval of genetically modified (GM) corn fields on a commercial scale will drag into next year."

"Organic growers and food safety advocates on Tuesday condemned an advisory report to the Agriculture Department claiming its recommendations would be costly for farmers who want to protect their conventional crops from being contaminated by genetically modified (GMO), also known as genetically engineered (GE), varieties."

"The Environmental Protection Agency declined on Friday to relax its requirement on the use of corn ethanol in gasoline, rejecting a request from several states related to a steep decline in the nation’s corn production."

"After months of uncertainty over the future of the program, the Agricultural Marketing Service's Microbiological Data Program, which tests produce for disease-causing pathogens like E. coli O157:H7, Salmonella, and Listeria, has officially gone into shutdown mode, a U.S. Department of Agriculture official confirmed Tuesday."

"Seville, with a population of about 300, is one of dozens of predominantly Latino unincorporated communities in the Central Valley plagued for decades by contaminated drinking water."