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

U.S. President Donald Trump drew pockets of laughter and a few moans with his blunt comments to an international audience while appearing by video link at the World Economic Forum meeting in Davos, Sw