"There might be a scientific reason that the old-growth trees in Yosemite National Park don't seem quite as big or as plentiful as those in your grandfather's early snapshots of the park."

"As California entered a severe drought, many of the city of Sacramento's biggest water users increased their watering dramatically."

Biologists have found in San Francisco Bay a kelp used in miso soup which is on the list of 100 worst invasive alien species.

"The United Farm Workers union sued California’s occupational health and safety agency on Thursday, accusing it of doing too little to prevent farm laborers’ deaths from heat illness."

"Californians’ eagerness to battle global warming seems to be cooling a bit: The latest survey on the state’s environmental attitudes, released on Wednesday, showed that 47 percent consider the threat of global warming very serious, a decline of seven percentage points from two years ago."

"State officials who lead California's war on global warming often travel abroad on trips supported by the major greenhouse gas polluters they regulate, a Bee investigation has found. Industry lobbyists and executives routinely join them."

"Sewage spills that have contributed to water pollution in San Francisco Bay will be reduced under two settlements reached last week between the nonprofit San Francisco Baykeeper and the Town of Hillsborough and the neighborhood of Burlingame Hills."

A massive sweep by drug enforcement agents in Fresno County offered new evidence of how illegal marijuana plantations on public lands are scarring the Sierra landscape.

"Tops and tails are becoming much more than garbage at Gills Onions, an onion processor in Oxnard, Calif. Today marks the unveiling of the company's onion-powered electrical system, a first-of-its-kind initiative to turn onion waste into energy."

"A controversial alternative to the ozone-depleting pesticide methyl bromide could be in use in Pajaro Valley strawberry fields next year."