President Joe Biden, who has sought to re-establish U.S. credibility on climate, is blasting the decisions by Chinese President Xi Jinping and Russian President Vladimir Putin to skip the ongoing international climate summit in Glasgow, Scotland, arguing those are mistakes that will cost them credibility on the world stage. “I think it's been a big mistake quite frankly for China . . . not showing up,” Biden said at a Nov. 2 press conference, after two days of meetings at...