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.

It's been a long time coming. The first highway tunnels to open in California in nearly fifty years are about ready for motorists.

The winds toppled trees, knocked out power, closed streets and rattled houses throughout the region.

Winemaking in the Napa Valley could become more difficult as climate change pushes temperatures up, according to a new study.

Researchers in Oregon found left-turning drivers often don't even see pedestrians in the crosswalk.

Stock market accounts belonging to Finnish children regularly outperformed the accounts of adults.

As scientists try to figure out why, marine centers caring for the animals have reached capacity.

The discovery is a hint that the first microbes sucked up whatever chemicals they could to survive.

After scientific research at UC Irvine tied certain chemicals to the loss of ozone in the earth's atmosphere, nearly 200 nations pledged to phase out their use with the signing of the Montreal Protocol. But in California, where the state's $2.3 billion strawberry industry has come to rely on the chemical methyl bromide, a new report by the state's Department of Pesticide Regulation suggests strawberry growers will be using it for years to come.

New national science standards released Tuesday promise to shake up the way science is taught across a number of disciplines. Each state will decide on its own whether to adopt the standards that California helped to develop.

A solar financing start-up from Oakland has started raising $100 million from small-time investors online. So far, the experiment is limited to California, but this could mark the beginning of large-scale crowd funding for business.

On Tuesday, President Obama unveiled a new initiative to map the human brain. The plan is to invest $100 million starting in 2014, so scientists can create a "road map" of the brain's circuits, similar to the documentation done for the Human Genome Project. The initiative could develop tools to help treat diseases like Alzheimer's and Parkinson's, and it's being co-led by a Stanford scientist. But critics say there are no clear end goals and no set deadline, and that the money could be better used elsewhere.

According to Steven Pinker, Daniel Kahneman is "the most important psychologist alive today." His work on decision making and irrational economic choices has made him one of a very small group of non-economists who have earned a Nobel Memorial Prize in Economic Sciences. Kahneman joins us to discuss how and why we make the decisions we do, and how that can help us understand politics, the economy and even the way we grocery shop.

This week, Governor Jerry Brown's office released further details of its plan to build twin tunnels to pump water from Northern California to cities and farms in other parts of the state. Brown says the $23 billion plan will help restore ecosystems, but critics say the proposal would further threaten the Delta's endangered fish and hurt smaller farmers. We talk about the latest plan and its potential impact on the region