Hidden beneath the 245,000 square miles that make up the Great Plains, resides a lake that’s one of our greatest water assets: The Ogallala Aquifer. Haven’t heard of it? Farming the plains would be unprofitable at best without it, as shown by the Dust Bowl of the 1930s. At the time, the aquifer’s existence was known, but the technology to tap into it wasn’t.
Via Seth Dixon