Piglets in a pen on a hog farm in Frankenstein, Mo. Jeff Roberson/AP hide caption

toggle caption Jeff Roberson/AP

An irrigation pivot waters a corn field in Nebraska. Many farmers in Nebraska and Kansas rely on irrigation to water their corn fields. But the underground aquifer they draw from will run dry. Nati Harnik/AP hide caption

toggle caption Nati Harnik/AP

Beef cattle stand in a barn on the Larson Farms feedlot in Maple Park, Ill. Daniel Acker/Landov hide caption

toggle caption Daniel Acker/Landov

A man cleans quinoa grain in Pacoma, Bolivia. Juan Karita/AP hide caption

toggle caption Juan Karita/AP

Beehive designer Johannes Paul (right) and Natural England's ecologist Peter Massini, with a brood frame colonized with bees from the "beehaus" beehive on the roof of his house in London in 2009. Sang Tan/AP hide caption

toggle caption Sang Tan/AP

The label for the berry blend recalled in June because of pomegranates linked to a hepatitis A outbreak. Food and Drug Administration hide caption

toggle caption Food and Drug Administration

Farmworkers harvest and package cantaloupes near Firebaugh, Calif. Gosia Wozniacka/AP hide caption

toggle caption Gosia Wozniacka/AP

Wheat grows in a test field at Oregon State University in Corvallis. Some scientists believe that there's a chance that genetically modified wheat found in one farmer's field in May is still in the seed supply. Natalie Behring/Bloomberg via Getty Images hide caption

toggle caption Natalie Behring/Bloomberg via Getty Images

Soil erosion after five inches or more of rain fell in one hour across portions of Western Iowa in 2013. USDA Natural Resources Conservation hide caption

toggle caption USDA Natural Resources Conservation

Craig Rowles tends to his pigs in a barn near Carroll, Iowa. Dan Charles/NPR hide caption

toggle caption Dan Charles/NPR

Crop consultant Dan Steiner inspects a field of corn near Norfolk, Neb. Dan Charles/NPR hide caption

toggle caption Dan Charles/NPR

Cage-free chickens in Harold Sensenig's barn near Hershey, Pa., get to roam and perch on steel rods, but they don't go outside. Dan Charles/NPR hide caption

toggle caption Dan Charles/NPR

NPR thanks our sponsors

Become an NPR sponsor