Can California’s cap and trade address environmental justice? Julia Rosen Wed, 12/16/2020 – 01:30 Growing up in North Richmond, California, Denny Khamphanthong didn’t think much of the siren that wailed once a month at 11 a.m. every first Wednesday. The alarm is a test of the community’s emergency warning system, which has alerted residents to numerous incidents over the years at the nearby Chevron oil refinery. One accident there — a 2012 fire — sent a cloud of black smoke billowing over San Francisco Bay and left thousands of local residents struggling to breathe. Now, when...