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The drug war was in full swing in the '80s, and cocaine was practically everywhere. But use of the drug has fallen by almost half since 2006, and production is also down significantly. How did the U.S. kick the habit? Experts say cocaine has lost its luster — oh and policy may have made a difference, too.

As our climate gets warmer, the danger of wildfires increases and plants and animals lose their habitat, not only in San Diego County, but all over the West.

According to one academic, if voted upon today, the Senate’s comprehensive immigration reform bill would fail by 15 votes in the House. But this academic is using his data with the hope of changing the bill's fate.

Parents will be reassured to hear there's no evidence linking the current timeline for vaccinations to health problems. A review of all available scientific data looked at a wide range of medical conditions — including diabetes, autism and epilepsy — before declaring that there's no reason to worry.

Both candidates for U.S. Senate in Massachusetts are finishing a frantic day of campaigning ahead of Tuesday's special election to fill the seat vacated by Secretary of State John Kerry.

Mark Zuckerberg and other tech leaders in Silicon Valley are banding together to push for comprehensive immigration reform, the Facebook co-founder announced this week. But Zuckerberg has dabbled in politically charged matters in the past.

There were at least three countdowns to shutdown, there was the debt-limit fight, plus the will-they-or-won't-they drama over the payroll tax holiday. Looking at how few bills were actually signed into law this year, one might conclude this session was mostly sizzle and not much steak.

The race to become the next mayor of San Diego is heating up. Democratic Congressman Bob Filner officially threw his hat in the ring yesterday. Filner joins a field that includes Republicans Bonnie Dumanis, Nathan Fletcher and Carl DeMaio. State Senator Christine Kehoe is also considering running for mayor in 2012. Who else could join party? And, what do each of the official candidates bring to the race? We speak to San Diego Mesa College Political Science Professor Carl Luna about the mayor's race.

Analyzing the tweets of millions of users suggested cross-cultural, Earth-wide trends in peoples' moods across days and weeks: We're more positive in the morning and late evening. The results point to new ways that academic research might tap into social media.

It's college touring season, and many parents are on the road with their teenagers, driving from school to school and thinking about the college application -- and financial aid -- process that looms ahead.