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 Trump is to speak to an international audience for the first time after returning into the White House with a speech and Q&A by video conference to the World Economic Forum’s annual eve