In his global evangelism about the threat of climate change, Gov. Jerry Brown has dismissed skeptics as “troglodytes” and “deniers of the obvious science.” But Brown, who in recent years has emerged as a premier climate warrior, has refused to ascribe those characteristics to Donald Trump since his election as president, despite the Republican businessman’s support for fossil fuels and repeated dismissals of climate change as a hoax perpetrated by the Chinese. In brief remarks about the subject, Brown said Monday that it would be difficult for the U.S. to “go rogue” on climate change.