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Climate researchers say there is a strong La Nina condition brewing over the Pacific, a condition which usually means a wet fall and dry winter and spring. We explore what a La Nina is and what it means for water resources and fire danger this summer.

Even if carbon dioxide emissions were halted today, global warming and the environmental disruption that comes with it would continue for 1,000 years, says a sobering study. Scientists are urging politicians to proceed with caution as they set new target levels for emissions.

Deadly rioting erupted this week in Haiti and Egypt, where food prices have soared amid rampant inflation. The G-7 met in Washington on Friday to address instability in the global economy, but analysts seem skeptical about how effective the organization will be at steadying inflation.

The San Diego County Water Authority is urging residents and businesses to help the region conserve water by turning off their outdoor watering systems today in advance of three storm systems moving i

San Diego Mayor Jerry Sanders struck a realistic tone in last night’s State of the City address. He touched on the city’s precarious financial situation, its dwindling water supply and called on res

Three powerful storm systems from the Pacific are expected to roll into Southern California by the end of the week. That could mean strong winds and lots of rain for San Diego. KPBS Reporter Dwane Bro

In California, climate change is predicted to transform the land and our lifestyles by the end of this century. KPBS Environmental Reporter Ed Joyce has more on what scientists are predicting for the

The economy is forcing many school districts to do more than just teach. They're having to take care of families. KPBS reporter Ana Tintocalis looked at how the region's skyrocketing unemployment and foreclosure rates are racking up a human cost.

The Democratic presidential race is tightening as Obama rides the wave of Oprah-mania. While, at the same time, faith-based voters in Iowa are making the choice between Mike Huckabee and Mitt Romney.

Some of the best men's tennis players in the world gather in Portland, Ore., for the start of the Davis Cup Finals. The three-day team event matches the U.S. against defending champion, Russia. The U.S. has won 31 Davis Cups — more than any other country — but none in a dozen years.