"The government on Thursday recommended the removal of four hydroelectric dams on the Klamath River in Oregon and California to aid native salmon runs and help resolve a decades-long struggle over allocation of scarce water resources."

"The Home Depot chain agreed to pay $8 million for selling tens of thousands of gallons of paint, varnishes, sealants and other liquid building materials that violated regional air quality rules, the South Coast Air Quality Management District announced Thursday, April 4."

"A coalition of environmental groups wants air-quality officials to determine if the refining of heavy Canadian crude has an effect on local health and safety."

"Despite some lingering anger over wood-burning rules, Bay Area air quality officials say a five-year burn ban has paid off for the region's 7 million residents."

The story of hexavalent chromium, a carcinogen, in drinking water is not over, even though Erin Brockovich's legal victory was vaunted in a film 13 years ago. Groundwater near Hinkley, Calif., is still polluted. The story of how industry clout has kept EPA delaying regulation of chromium in drinking water is a tale of the chemical industry's ability to manipulate regulation by sowing doubt. But recent highly dramatized stories on chrome-6 in drinking water may not have helped much, to the extent that they downplayed natural background levels, the importance of dose, and the statistical problems in identifying cancer clusters. The whole saga raises key issues about public relations, lobbying, regulatory politics, the legal system, environmental journalism, and the protection of public health.

"Snow-surveying crews across the Sierra are seeing bad news up close this week. California has about half a snowpack."

"SACRAMENTO, Calif. -- California officials vowed Tuesday to move forward on a new fire safety rule that could eliminate the use of toxic flame retardants in household furniture and baby products sold nationwide."

"The U.S. Supreme Court agreed Monday to decide whether environmental groups can challenge a federal government plan that has led to increased logging in California forests throughout the Sierra."

"Sick and malnourished sea lion pups are stranding themselves on Southern California beaches in some of the largest numbers seen in over a decade, perplexing scientists and leading one care facility to declare itself near capacity."

"SAN DIEGO — The California Coastal Commission on Friday rejected a Navy explosives and sonar training program off the Southern California coast that critics said could harm endangered blue whales and other sea life."

"Over the objections of environmentalists, community groups and neighboring Long Beach officials, Los Angeles harbor commissioners on Thursday approved a $500-million rail yard that could dramatically boost business but also drive more noise and dirty air into schools, parks and low-income neighborhoods."

"Environmental groups and wildlife lovers near Joshua Tree National Park on Monday applauded a proposed state law that would ban trapping of bobcats for commercial purposes."

"California wildlife officials have adopted new rules aimed at protecting the public from mountain lions without resorting to killing so many of the big cats so often when they roam near humans, pets or livestock."

"In the sleek Irvine office building of FirstCarbon Solutions, engineers, biologists, and mapping software specialists work in green jobs. They calculate the impact of housing tracts, design wetlands, and measure air pollution as part of the fast-growing environmental consulting industry."

"CARLSBAD, Calif. — On a calm day, a steady rain just about masks the sound of Pacific Ocean water being drawn into the intake valve from Agua Hedionda Lagoon. Listen hard, and a faint sucking sound emerges from the concrete openings, like a distant straw pulling liquid from a cup."