California is the second state to raise the legal age for purchasing tobacco products from 18 to 21. A similar law went into effect in Hawaii on Jan. 1. Paul J. Richards/AFP/Getty Images hide caption

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A Donald Trump supporter and critics of the presidential candidate yell at each other outside a rally for the Republican in Costa Mesa, Calif., on Thursday. Chris Carlson/AP hide caption

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Considered Southern California's premier big-wave surf spot, waves at Lunada Bay can reach up to 20 feet overhead in the winter months. Denise Guerra/NPR hide caption

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Lunada Bay Visitors Want Locals To Let Them Ride The Waves
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Despite the ongoing drought in California, the Folsom Lake reservoir is kept at only 60 percent capacity in the winter to prevent major flooding if a winter storm occurs. Some hope to prevent the waste of water by relying on more accurate weather predictions. U.S. Bureau of Reclamation hide caption

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In California, Dealing With A Drought And Preparing For A Flood
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"We are now shifting our attention to changing the underlying delivery system to make it more cost effective and higher quality," says Peter Lee, executive director for Covered California, the state's health insurance marketplace. Anne Cusack/LA Times via Getty Images hide caption

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A smoker in San Francisco holds a cigarette. If Gov. Jerry Brown signs the bill, California will become the second state to raise the age limit for buying tobacco products from 18 to 21. Justin Sullivan/Getty Images hide caption

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A member of the media tests a Tesla Motors Model S car with an Autopilot system. Regulators and manufacturers are debating whether self-driving cars should have a licensed driver inside as a safety precaution. Bloomberg/Bloomberg via Getty Images hide caption

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Should Self-Driving Cars Have Drivers Ready To Take Over?
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Karyn Jackson (right) helped Fernando Rico, of Pasadena, Calif., complete a Covered California application for health insurance at an enrollment fair in 2014. Allen J. Schaben/LA Times via Getty Images hide caption

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Will HealthCare.gov Get A California-Style Makeover?
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Contractors who supply workers to farmers say requirements of the Affordable Care Act and the immigration status of many of the workers create a Catch-22. Maguey Images/Getty Images hide caption

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Farm Contractors Balk At Obamacare Requirements
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How To Get Dads To Take Parental Leave? Seeing Other Dads Do It
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This San Francisco home collapsed in the 1989 Loma Prieta earthquake, which also claimed dozens of lives. ADAM TEITELBAUM/AFP/Getty Images hide caption

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U.S. Quake Warning System Could Save Lives When Seconds Count
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Skimping on health insurance carries a hidden price for some fast-food restaurants. Paula Connelly/Getty Images hide caption

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Bosses Find Part-Time Workers Can Come With Full-Time Headaches
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"Solar trees," which suspend solar panels over parking spaces in San Diego, collect electricity. Generating solar power like this is just one rung on a ladder the city will have to climb to reach 100 percent renewable energy by 2035. Clare Trageser /KPBS hide caption

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San Diego Mulls Whether To Let City, Not Utility, Buy Alternative Energy
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