Thought California has consigned coal-burning to the scrap bin? Think again! California has 11 coal-fired power plants, all used to heat limestone into cement -- making us one of the biggest cement-producing states in the country. In addition to cement, these kilns produce 95% of the state's airborne mercury pollution and 2% of its greenhouse gas emissions. Mostly, they've slipped under the radar of regulators, but that is changing fast.
You may listen to the "Cement - A Dirty Business" Radio report online, as well as find additional links and resources. Also don't miss our behind-the-scenes photos for this story.
Amy Standen is a Reporter for QUEST and Radio News at KQED-FM.