"Vast areas of California's Central Valley are sinking faster than in the past as massive amounts of groundwater are pumped during the historic drought, state officials said, citing new research by NASA scientists."

"The task of removing lead-contaminated soil from thousands of homes near a closed Vernon battery recycling plant would be the largest cleanup of its kind in California and rank among the biggest conducted nationwide, say environmental officials and experts in toxic remediation."

"A toxic algae bloom that began off the West Coast this spring now stretches from California to Alaska. It’s poisoning marine life from shellfish to sardines to sea lions, and scientists say it’s one of the worst they’ve seen."

"Los Angeles has been blackballed. The city has completed a program of covering open-air reservoirs with floating "shade balls" to protect water quality."

"The EPA touted its only preliminary finding of discrimination in a civil-rights case, but the complainants were less than thrilled with the outcome".

"The U.S. Environmental Protection Agency has ordered a new round of air quality tests for a South Bay neighborhood after detecting a variety of contaminants inside homes near two federal cleanup sites."

"An environmental group petitioned the federal government on Thursday to immediately inspect more than 200 miles (320 km) of undersea oil pipelines off California's coast."

"The battle to tame California's fiercest wildfire this year, the big Rocky blaze north of Napa Valley wine country, neared a turning point on Thursday as ground crews fighting the flames for an eighth day steadily extended their control lines."