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The House defied a White House veto threat and voted overwhelmingly for a five-year, $306 billion farm bill Wednesday, the same day that U.S. officials told the Senate Foreign Relations Committee that sharp increases in food prices could soon swell the ranks of the world's hungry by a hundred million people.

Global climate change is likely to trigger humanitarian disasters and political instability that will have a major impact on U.S. national security, a top intelligence official told Congress on Wednesday. A new assessment by the National Intelligence Council treats climate change as a security threat.

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.

We're hearing this could be one of the worst fire seasons in a century. Drought and a winter frost have turned trees and brush into kindling. But after the devastating 2003 fire storms, you might assu

Dry conditions in California the past two years are predicted to give way to more normal rainfall next year. But a state meteorologist says if those long range forecasts are wrong, a third dry year wo

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.

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

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

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