Fly east out of Colorado Springs and look at all the irrigated circles from center-pivot irrigation. They are growing corn, mostly.
Corn to feed to cattle in High Plains stockyards. Corn for ethanol (it's patriotic!) to make us energy independent so we won't be sending money to the Middle East.
All those wells pumping groundwater have led to this result.
Vast stretches of Texas farmland lying over the aquifer no longer support irrigation. In west-central Kansas, up to a fifth of the irrigated farmland along a 100-mile swath of the aquifer has already gone dry. In many other places, there no longer is enough water to supply farmers’ peak needs during Kansas’ scorching summers. . . . .A shift to growing corn, a much thirstier crop than most, has only worsened matters. Driven by demand, speculation and a government mandate to produce biofuels, the price of corn has tripled since 2002, and Kansas farmers have responded by increasing the acreage of irrigated cornfields by nearly a fifth.
From a US Geological Survey report, quoted at Coyote Gulch, the water blog:
The study shows that, since 2000, depletion of the High Plains aquifer appears to be continuing at a high rate. The depletion during the last 8 years of record (2001–2008, inclusive) is about 32 percent of the cumulative depletion in this aquifer during the entire 20th century. The annual rate of depletion during this recent period averaged about 10.2 cubic kilometers, roughly 2 percent of the volume of water in Lake Erie.
Maybe we will see more grass-fed beef (or buffalo?) and more winter wheat in on the High Plains in the future. That's the optimistic outlook. But that slogan from the 1970s and 1980s, "A bushel of wheat for a barrel of oil!" is still just chest-thumping nonsense.