Author: Brandon Loomis, USA TODAY NETWORK

With a constant demand for water from the Colorado River, there may be no end to the painstaking work to sustain the waterway’s natural systems.

Arizona will stop approving new development in the Phoenix area that relies solely on groundwater after a new model shows a projected shortfall.

The groundwater crisis signals difficulty ahead for developers wishing to build hundreds of thousands of homes in the desert west of Phoenix.