Southern California

Southern California is a geographic and cultural region that generally comprises the southern portion of the U.S. state of California. It includes the Los Angeles metropolitan area, the second most populous urban agglomeration in the United States. The region generally contains ten of California's 58 counties: Imperial, Kern, Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara, San Luis Obispo and Ventura counties. The Colorado Desert and the Colorado River are located on Southern California's eastern border with Arizona, and San Bernardino County shares a border with Nevada to the northeast. Southern California's southern border with Baja California is part of the Mexico–United States border.

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U.S. Space Command confirms cause of fireball seen across Southern California sky

Chinese space junk falls to Earth over Southern California, creating spectacular fireball (photos, video)

SpaceX rocket launches over Southern California after four-day delay

Pet Owners Beware: Dog-Killing Parasite Discovered in Southern California

Dog-killing flatworm discovered in Southern California

Ocean Warming Is Wiping Out Southern California’s Mussel Beds — climate change has been affecting Southern California since at least the early 1970s.

Scientists Publish 37-Year Record of Ocean Acidification off Southern California | The longest ocean time series of dissolved carbon dioxide in the Pacific — part of the “Keeling Curve of the ocean” — is revealed

Wildfire Brought Wolves Back to Southern California after 150 Years

NASA Maps Key Heat Wave Differences in Southern California

Dune restoration could increase the resilience of Southern California's urban beaches to sea level rise

What’s living beneath the waves in Southern California? — Using environmental DNA a UCLA-led study published in the journal PLOS One has identified 80 species of fish and rays living within southern California surf zones

Saved from extinction, Southern California's Channel Island Foxes now face new threat to survival

Southern California Continues To Become A Major Gathering Spot For Sharks

Why a Blizzard Is Hitting Southern California

Fungi that causes pine ghost canker detected in southern California trees

Fossil Clam Species Found Living Off Southern California

Tracking the origin of southern California's latest invasive pest

Proposed Southern California Desalination Plant Could Do More Harm Than Good

“Red Tides” Are Currently Blooming In Southern California

How these three highly irregular, easily hybridized species has thrived in Southern California [the parentage of every kind of citrus may be traced to three distinct species: pomello (Citrus maxima), mandarin (Citrus reticulata), and/or citron (Citrus medica)]