San Francisco International Airport’s corporate jet traffic rose roughly 30 percent during an international climate change conference in California, the San Francisco Chronicle reports. California Democratic Gov. Jerry Brown hosted the Global Climate Action Summit in San Francisco from Wednesday to Friday. Brown traveled to the conference by car with his security detail, but the governor is known for his lavish travel on other occasions, such as a 2016 trip to Italy, Bulgaria, Romania and Ukraine with real-estate tycoon and Democrat Party donor George Marcus. (RELATED: Gov. Brown Is Launching California Into Space — To Fight Global Warming) More than...