The National Weather Service has issued another rare Particularly Dangerous Situation warning in anticipation of Monday's Santa Ana wind event.

California Governor Gavin Newsom has deployed fire engines, water-dropping aircraft and hand crews across the region—to ...

Just a few years after the ozone hole was detected via satellite, the industrialized nations of the world, meeting in Montreal in 1987, adopted what is known as the Montreal Protocol.

Another "particularly dangerous situation warning'' was issued for a large portion of L.A. and Ventura counties due to ...