Chevron and Shell Refineries Are Top Two Polluters



The Chevron refinery in Richmond and the Shell refinery in Martinez are the state’s two top emitters of greenhouse gases, according to the San Jose Mercury News. The Chevron refinery spews 4.8 million metric tons of greenhouse gases a year, followed by the Shell facility, which emits 4.6 million metric tons. Industrial sources and power plants make up 43 percent of greenhouse gas emissions statewide, compared with transportation at 36 percent.