Irrigation

The ancient irrigation networks lying below Phoenix could offer a solution to the sprawling desert city's water problems.

Egypt runs on the Nile's water. But with a growing population, Egypt's Ministry of Irrigation expects that the Nile will barely be able to meet the country's water needs by 2017. Its neighbors are increasingly angry about its overuse.

A proposed irrigation project near the Incan citadel of Machu Picchu in Peru that would divert water away from small villages has sparked violent protests.

NASA satellite imagery reveals that two of California's main groundwater sources are being rapidly depleted by agriculture and exurban development.

NASA satellites have tracked the loss of water in California's Central Valley over the past few years, and finds that drought coupled with over-irrigation are stressing the state's supplies.

Irrigation canals dating back to the year 1200 B.C. were discovered in Arizona this year, answering a long-asked question about how natives were able to farm the arid land.

California's Central Valley is one of the top agricultural sites in the world, but with low rainfall and cut-off irrigation supplies, farming towns and their citizens may face at least one tough year ahead.

Cities in the Dallas-Fort Worth area are working together to save water and use reclaimed water for non-drinking purposes.

With the state gripped in a record drought, public officials are rethinking how water is delivered to California's agricultural operations.