"Monic Uriarte says she began having headaches and bouts of dizziness three years ago, about the time she and her neighbors began smelling a chemical odor on the streets and in their homes."

"STANISLAUS NATIONAL FOREST -- Perched atop a charred ridge, scientist Brad Rust stares at a tiny bead of water -- which sits, motionless, glistening like a perfect pearl in a sea of ash."

"Truckers want tougher enforcement and point to competitors who violate state rules to install filters or upgrade to cleaner engines."

"California legislation that orders the first-ever state oversight of hydraulic fracturing neared final passage yesterday, even after nearly all environmental groups dropped their support."

"FRESNO, Calif. -- The annual rate of hospitalizations for valley fever, a potentially lethal but often misdiagnosed disease, has doubled over the past 12 years in California, according to a study published on Wednesday by the Centers for Disease Control and Prevention."

"FRESNO, Calif. -- For decades, this city in California's agricultural heartland relied exclusively on cheap, plentiful groundwater and pumped increasingly larger amounts from an aquifer as its population grew."

"Oil industry lobbyists sought to gain an exemption from the leading California environmental law as they pushed back against legislation mandating oversight of hydraulic fracturing, multiple people familiar with the activities said."

"Emissions from battery recycler Exide pose a 'chronic hazard' to more than 250,000 people in surrounding areas, air district officials say. Risks include neurological changes in children."