Depleted groundwater threatens communities, agriculture, and ecosystems in California's Central Valley, which produces much ...

The pull of gravity feels rock steady, yet it wobbles from place to place. Even a single mountain or a shrinking aquifer can ...

Map: The Ogallala Aquifer: A Freshwater Bonanza in Decline. Click image to enlarge. This map was created by graphic designer Erin Aigner, with research assistance from Brett Walton of Circle of Blue.

To remedy this, local researchers are using a new class of DNA-based tracers to map the flow path of the aquifer. The tracers will be capsules made of environmentally safe material to ensure ...