Alden Meyer (C), director of strategy and policy from Union of Concerned Scientists, answers questions from media during a press conference in Marrakech, Morocco, on Nov. 9, 2016. Donald Trump's win of the U.S. presidential election on Wednesday has triggered concerns by experts attending the climate change conference here over the U.S. possible pull-out from the Paris Agreement, with others still expecting the president-to-be would be more measured and responsible on the issue. (Xinhua/Meng Tao)
