Three years after a raw sewage spill, residents living near L.A.'s Hyperion wastewater plant say they are still dealing with foul odors and health issues.
Researchers have uncovered unexpected diversity in the genetic processes that determine the sex of the African clawed frog, a significant discovery in what was already one of the most widely studied amphibians in the world.
Southern California air quality officials have again failed to adopt rules to clean pollution at the ports of L.A. and Long Beach, backing down in the face of opposition from organized labor and business interests.
Recent wildfires in Malibu and the Santa Monica Mountains have made way for non-native plant growth, setting the stage for increasingly frequent blazes.