California Governor Jerry Brown’s plan to cut the state’s use of petroleum for transportation in half by 2030 will be “tough” to reach, the chair of the state’s energy policy and planning agency said on Friday. “The governor certainly envisioned this much more as a moon shot type of goal,” Robert Weisenmiller, chair of the California Energy Commission, said during an interview in Berkeley. “He didn’t set any of these as the no-brainer easy goals. If anything, the question is which is the toughest.” California has been setting the pace for U.S. policy on climate change and greenhouse gases. In January, Brown outlined environmental goals aimed at reducing carbon emissions in the next 15 years, including cutting petroleum use in cars and trucks by 50 percent, doubling the efficiency of existing buildings and increasing from one-third to 50 percent the electricity delivered from renewable sources. The transportation […]