CEDAR RAPIDS, Iowa (KCRG) - The city of Dubuque plans to help address food deserts by putting in a hydroponics system. That’s where produce can be grown in water instead of soil, making it accessible ...

Hydroponics — growing plants in nutrient-rich water rather than soil — might seem like a fairly modern idea, but people in China have used the technique to grow rice since at least the 13th century.

BackgroundWater scarcity, declining water quality, and increasing climate variability are imposing unprecedented constraints on global food production, ...