In the western U.S., trees are facing a triple threat of heat, drought and wildfire. Despite efforts to find more resilient tree species, some forests may not survive past mid-century.
Lead poisoning is a major obstacle to recovery for the endangered California condor, but a bill to address the problem has gun owners up in arms.
Drone enthusiasts in Silicon Valley are going beyond military and spy applications, exploring new uses for science and the environment.
Now that scientists are starting to get a handle on what kinds of microbes live in the human body and, roughly, how those populations differ from one individual to another, a key question will be whether there is such a thing as an “ideal” microbiome.
Just north of the Bay Area is a vast and varied expanse of land and water that could be in line for new federal protections. The proposed Berryessa-Snow Mountain National Conservation Area would link wilderness zones and other lands in five counties. But it’s been a tough sell in some parts.
The Supreme Court is hearing a case on a key question: can you patent a human gene?
As the whale migration season reaches its peak, new concerns arise over naval training exercises off the California coast.
A new approach to small-scale water "banking" could relieve stress on both the water supply and levees in California's San Joaquin Valley.
The Exploratorium, a San Francisco icon, will soon reopen as a stunning, new, energy efficient building on the city's Embarcadero.
San Jose is trying to lead the country in clean tech innovation. So how is the city doing?
They're out there… lurking in Earth's magnetic fields and damaging any satellite in their path.
For the first time in the Sierra Club's 120-year history, its national head was arrested for an act of civil disobedience. It signals a new, more aggressive stance for the organization spawned by John Muir.
They may sound like faulty plumbing, but male northern elephant seals have a unique communication system that's all about reputation.
Under a strategy known as "managed retreat," San Francisco gets ready to let the ocean reclaim a cherished stretch of Pacific coastline.
In November, California voters overwhelmingly passed Proposition 39, closing a corporate tax loophole and using the savings to create the largest state energy efficiency initiative in the country. Now the debate over how to use the money begins.