Conditions behind California's drought and warm coastal waters were mostly natural, but not entirely.
California’s Central Valley has three times more freshwater in underground aquifers than previously thought.
New analysis shows how climate change is influencing a dramatic increase in large western wildfires.
California's overworked firefighters are being forced to take on another task — clearing dead trees.
Wildfire season is about to kick off in earnest. Here's how you can track it, one fire at a time.
Global warming and the whims of the weather mean California remains in drought despite the El Niño.
Three-fifths of wetlands in the West are in “poor” condition, but marsh restorations are underway.
New research shows acidification caused by carbon dioxide kills and stunts baby Dungeness crabs.