On the final day of Netroots Nation, SF Mayor Gavin Newsom gave the opening remarks to introduce environmental advocate Van Jones – a clear sign that he plans to run in 2010 as a “green” Governor. But as Bob Brigham wrote on Calitics, Newsom hasn’t come out for San Francisco’s Clean Energy Act on the November ballot – while his consultant Eric Jaye is working for PG&E to oppose it. “I hope Newsom will follow the best practices of hundreds of cities,” said Brigham. “PG&E has shown they are far more interested in greenwashing than green jobs and green energy.” After Newsom’s speech, I asked him if he’d support the measure – and he initially said “yes.” But then he asked if I meant the one about PG&E, and once clarified he then said “no.” Newsom then refused to explain why he opposes it …