Solar companies in California have long been able to tell homeowners they can save a lot of money on power bills by going solar. Now PG&E is proposing a rate change the company says will be more fair for everyone. But solar companies say it’s simply an attack on their industry.

No one knows for sure, but we could all simply have to adjust to a drier climate. That could mean changing the way we build cities to make them more porous.

Birds, salmon and snakes depend on marshes and rivers for survival and migration, and to propagate the species. But many wildlife species are unable to find the water they need as the drought shrinks rivers and dries up wetlands.

The last of the Coast Guard's big icebreakers departs San Francisco Bay this week, a rare sight on the Bay and a reminder that the U.S. is falling behind in the race for polar dominance -- and knowledge.

A California woman recently became the first person in the West to receive a new type of bionic eye, an implant that will help her see for the first time in nearly three decades.

Scientists in California's Central Valley are testing the nutrient content of fruits grown with less-than-normal amounts of water. Will consumers buy fruits that are just as nutritional, or sometimes higher in antioxidants, if they aren't as pretty?

Bay Area taxpayers have spent billions of dollars over the last quarter-century to make our bridges, water pipes and power supplies safer in an earthquake. Experts say that means the Bay Area is much better off now. At the same time, the work is far from over.

Wearables and health apps made a multi-billion-dollar industry out of healthy peoples' desires to count calories and rack up steps. Now can this technology make the transition to a medical setting, to help people with chronic illnesses?

Used to be that medical researchers came up with a theory, recruited subjects, and gathered data, sometimes for years. Now, the answers are already there in data collections on the cloud. All researchers need is the right question.

The South Napa Earthquake revealed how much we've yet to learn about seismic faults in the Napa Valley.