How are local governments in Santa Cruz County preparing for an estimated sea-level rise of up to 7 feet by 2100?

An atmospheric river is forecast to bring steady rain to Northern California from Friday through next Thursday, with Santa ...

The median age of Arizonans has only been increasing over the past decade. Here's which counties are the oldest and youngest in the state.

The desert city in southern Arizona is a sanctuary for stargazers—and now it's even easier for visitors to explore.

The overall goal is to reduce groundwater overdraft, a condition in which more water is drawn from a well or aquifer than is ...