Reuters: California’s landmark legislation to cut carbon dioxide emissions to 1990 levels by 2020 will help the state’s economy in the long run, according to a report issued on Wednesday by the state agency charged with implementing the cuts. A macroeconomic analysis of a California Air Resources Board (CARB) proposed plan to implement the emission cuts estimates that in 2020 the state’s productivity will be increased $27 billion over what would be realized if the state doesn’t cut its …