Mercury spill cleanup in Martinez could take days

The ongoing mercury spill discovered days ago in the Martinez Amtrak parking lot continued to disrupt surrounding areas Wednesday as crews worked to remove every spec of the toxic chemical.

California passes 1st-in-nation emission rules for trains

California approved Thursday a first-in-the-nation, ambitious rule limiting rail pollution to aggressively cut greenhouse gas emissions in the state’s latest move to establish itself as a global leader in the fight against climate change.

California's water and snowpack Motherlode: a blessing or a curse?

California's Motherlode of water is a blessing and a curse. The California Department of Water Resources is telling the 29 public water agencies serving 27 million Californians, they will get 100% the water they request. That has not happened in 17 years.

EPA approves California rules phasing out diesel trucks

The Biden administration cleared the way Friday for California's plan to phase out a wide range of diesel-powered trucks, part of the state's efforts to drastically cut planet-warming emissions and improve air quality in heavy-traffic areas like ports along the coast.