'A clear danger': oil spill in California city revives calls to cut ties with Chevron

Emergency crews in Richmond, California, are rushing to clean up an estimated 600 gallons of oil that spilled from a Chevron refinery into the San Francisco Bay. Details on the spill are still scant, but the emergency has reinvigorated calls from residents and environmentalists for the city to change its relationship with the refinery. The spill at the Chevron Wharf, which poured unabated for nearly two hours on Tuesday, cast a brownish sheen across the waters of the north-eastern part of the bay where harbor seals haul out, migratory birds skim the water, and residents live and recreate.