global leaders, some of them to take the stage that day two of davos, including german chancellor angela merkel and shinzo abe. the move less optimistic than last year as policy leaders worry about the slowdown, trade tensions and climate change. cnn's julia chatterley is live in davos. julia, a lot being made of who is not there at this confab of the world's richest and most important. >> reporter: yeah, christine, you hit the nail on the head, i think. the elephant in the room is simply who isn't here. the rifts that you mentioned, the u.s./china trade war, the brexit and donald trump and theresa may simply aren't here. we're talking about solutions to problems where the leaders aren't present to give us an idea here. i think the big debate right now, everybody talks about the