Opinion

SAN FRANCISCO — A federal review of an explosion that killed four workers at the Tosco refinery in 1999 has concluded better management could have prevented the fire. -more-

The Associated Press -more-

SAN FRANCISCO — California’s top power regulator proposed immediate electricity rate hikes of up to 46 percent Monday, saying this should encourage customers to cut back on usage and conserve enough power to avoid blackouts this summer. -more-

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The University of California at Berkeley is turning 133 years old, and the campus is taking the occasion to celebrate its history, particularly its “Nobel” past. -more-