Climate models and population growth paint a pretty bleak picture for water availability a few decades from now. If farmers want to stay in business, they have to figure out how to do more with less. Enter: super efficient irrigation systems.

The stakes of figuring out how to sustain large-scale agriculture on the plains are high. In the most arid regions, farmers are already overdrawing underground sources. Development continues to encroach. Climate models show precipitation will become much more variable. «full article