SACRAMENTO, Calif. -- California's utilities, refineries and large factories must transform their operations to cut greenhouse gas emissions as part of a new climate plan before state regulators. On Thursday, the California Air Resources Board was expected to adopt what would be the nation's most sweeping global warming plan, outlining for the first time how individuals and businesses would meet a landmark 2006 law that made the state a leader on global climate change. It would hold California's worst polluters accountable for the heat-trapping emissions they produce _ transforming how people travel, utilities generate power and businesses use electricity. At...