The authors say more federal investment is needed to clean up pollution, reduce runoff and restore wildlife habitat.

The Colorado River Basin lost an alarming amount of groundwater over the past 20 years, a new study found. Nearly 28 million ...

Overuse and climate change are rapidly depleting groundwater throughout the region, but aquifers are not part of the ...

A coalition representing universities, environmental conservation nonprofits and more has released what it says is a roadmap ...

The Colorado River basin has lost a Lake Mead’s worth of water in the last 20 years — and scientists say we’re passing a "critical point" where pumping groundwater will become too expensive.

Water in the Arkansas River Basin is in high demand. Farmers, rafters, and fishermen use it. So do cities and towns far from the river, where hundreds of thousands of people live and work.