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The burning of fossil fuels is causing a rise of acid levels in the ocean, and it may be harming sea life, according to a new study by researchers at Scripps Institution of Oceanography.

What wakes you up? There's a gene for that and it's been discovered by San Diego researchers.

Drought and global warming have inspired San Diego scientists to explore ways to increase drought tolerance in crops. Their research will be published in the journal Science.

America's privacy concerns go back to the origins of the country itself. And in the wake ofrevelations about the National Security Agency's surveillance activities, polls show the country has mixed feelings; Fox News, CBS News and Gallup all find that more than half of all Americans don't approve of the NSA collecting phone and Internet records. Young Americans feel just as ambivalent as older generations when asked about the surveillance activity.

This week, KPBS and I-Newsource released a joint investigation that kept getting weirder and weirder.

The wildly popular photo-sharing site Instagram nearly caused a user revolt when it revamped its terms of service and privacy policy to suggest it could allow uploaded photos to be used in ads without users' permission. Instagram later clarified its position in an effort to quell concerns.

In his latest book, the author of Beautiful Boy describes a new way of treating substance addiction and related mental illnesses. "What we know now is that addicts aren't immoral, they aren't weak," he says. "They're ill."

Is it naive to believe that improved Internet access can help open up truly autocratic regimes like North Korea? Google executives Eric Schmidt and Jared Cohen, authors of The New Digital Age, say the power of information is underrated.

Most Americans think of prejudice as animosity toward people in other groups. But two psychologists argue that unconscious bias — often in the form of giving some people special treatment — is the way prejudice largely works in America today.

San Diego Unified School District is piloting classes for students who have spent years in U.S. schools without mastering English.