California

Two-thirds of California voters believe global warming is a threat and measures need to be taken to stop it, but the level of concern has dropped significantly over the past six years, according to a Field Poll released Monday.

The impact of the state's climate change laws can be seen in a long-term transportation plan developing in San Joaquin County, which will exhibit a stronger-than-ever link to planned housing and other land use expectations.

Hollywood "can help shine the light on both the climate science and the solutions, including through events like this. I also think we can all take action ourselves where ever possible."

As global warming escalates, San Francisco Bay's existing flood protection system will be no match for rising sea levels. Fortifying the shoreline with levees fronted by restored tidal marshes will be a cheaper, more aesthetic and ecologically sensitive alternative to traditional levees.

California's fledgling cap-and-trade carbon market is becoming more familiar to the companies that have to participate in it – and that's showing up in the price they're paying for the right to pollute.

Supporters and opponents of a plan to restart a reactor at the shuttered San Onofre nuclear plant took their concerns to state utility regulators Thursday at a public meeting in Costa Mesa.

If we don't move quickly on climate change, what's likely to happen to Southern California in the coming years? Some of our best academic minds have been thinking about that question for years, and the scenarios are scary.

Thousands of people rallied in downtown San Francisco on Sunday to urge President Obama to reject construction of the Keystone XL oil pipeline, an action they said would prove he is committed to fighting global warming.

Those in charge of California's Tuolumne River have spent millions of dollars defending water rights and will spend millions more. But efforts to address a very real, potentially dangerous long-term threat to the river's source -- climate change -- amount to a virtual trickle.

Sen. Barbara Boxer plans today to co-sponsor a radical plan to control carbon dioxide emissions modeled on Alaska's rebates of oil royalties to residents.