Decades after a landmark decision called for Los Angeles to limit its taking of water to raise the level of Mono Lake, California regulators are reexamining why it still hasn't rebounded and what ...

Groundwater has fallen to precarious depths in much of the world. New research highlights areas that have been able to bring levels back up.

Hawaii's new round of Kona low weather is testing nerves on Oʻahu’s North Shore, where Wahiawā Dam remains under close watch.