Climate Change

California transportation officials warn the fight over passenger vehicle standards might affect air quality, construction jobs, the economy — and ensure Californians stay stuck in traffic.

Unless the emissions trend is reversed, the state could stall on its route to clean air.

Unless the emissions trend is reversed, the state could stall on its route to clean air.

The state may not be able to cut enough greenhouse gases by 2030, says Mary Nichols, who chairs California's Air Resources Board.

Speaking against the backdrop of a busy freeway, California officials this morning reaffirmed their opposition to a Trump administration proposal to roll back automobile fuel efficiency standards—noting the state had just filed 415 pages of comment strenuously objecting to the federal plan.

Planet-warming emissions could soar 30 percent too high in a little more than a decade, state analysts say.

Mother Nature doesn't follow California's emissions rules.

Last year’s drop in California emissions came not through drastic pollution reductions from oil refineries nor the state’s lauded cap-and-trade program. It was the rain.

On a nearly two-week swing through Europe, starting at the Vatican and ending at the United Nations climate change conference in Bonn, California's governor offered a bleak appraisal of the global future:  We are on a trajectory toward hell. Yet Brown dazzled.

It's a wrap; Gov. Jerry Brown heads home after warning the world about climate change.