Pope Francis has the moral authority to sway public opinion over global warming and might attend the United Nations’ Climate Change Conference (COP26) in Scotland, U.S. President Joe Biden’s climate envoy John Kerry said on Saturday. COP26 is being held in Glasgow in November and could accelerate measures by the world’s biggest polluters to tackle climate change, a challenge which activists, scientists and world leaders say could ultimately endanger the planet. “I think that his voice will be a very important voice leading up to and through the Glasgow conference, which I believe he intends to attend,” Kerry told the official Vatican News outlet after meeting the pope. There was no immediate confirmation of this from the Vatican. “Because he is above politics and outside of the hurly-burly...