Mercury News: Three decades of emphasis on energy efficiency in California has created 1.5 million jobs and $45 billion in payroll, and measures to combat global warming will result in similar gains in the decade ahead, a UC-Berkeley researcher says in a report to be released today. In fact, policies that mandate cutting greenhouse-gas emissions, such as the state’s landmark law known as AB 32, will require energy-efficiency improvements that will mean 403,000 new jobs with a payroll of $48 billion …