The "Rage Against the Regime" protest is planned to take place Saturday, Aug. 2, and includes about 20 locations in Florida.

Winter-run Chinook salmon, once considered to be most at risk of extinction by the National Oceanic and Atmospheric Administration, returned to its habitat in Northern California. Wildlife officials ...

"High winds and low humidity will continue to work against firefighters as they battle the flames." Grand Canyon wildfire ...

During the cold war, naval intelligence used hydrophone arrays to detect low-frequency sea noise from submarines crossing the ...

Experts said the megadrought in the American Southwest could last through 2100 or longer unless humans change their behavior.