Gov. Gavin Newsom will try to reinforce the state's role as a global leader on climate change as he begins a weeklong visit to China on Monday, Newsom's tour begins in Hong Kong before he continues on to Beijing, Shanghai and other provinces. He'll visit the first Chinese city to deploy an all-electric bus fleet, tour an offshore wind facility and see a wetlands preserve. He'll sign agreements with leaders of Chinese provinces to set mutual commitments on a host of climate goals. California has already signed dozens of such agreements with subnational governments.