U.N. Secretary-General António Guterres ratcheted up his warning about climate change and said the world’s thirst for fossil fuels is a “Frankenstein monster” that spares no one, while calling for greater attention to risks posed by artificial intelligence if its ascent goes ungoverned — even as some leaders played up its

Donald Trump is coming back to Davos. This time, virtually. The freshly reinaugurated U.S. president is to speak Thursday to an international audience for the first time after returning to the White House three days earlier,