Farming practices in America's heartland, including excess fertilizers and poor soil conservation, have wrought unintended yet severe consequences on the Mississippi River. Fortunately, farmers, scientists, and citizens are pursuing more sustainable land-use practices that meet ambitious food production goals while ensuring the long-term health of precious natural resources.

Local, organic, and sustainable are words we associate with food production today, but 40 years ago,...

King Corn is a fun and crusading journey into the digestive tract of our fast food nation where one ...