A New Culprit Is Identified in China’s Choking Smog Researchers say that emissions of formaldehyde from autos and chemical and oil refineries play a larger role in China’s smog than previously known. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:A Prostitute Was Killed in France. Is a New Law Partly to Blame?Bill Blair on the Firing Line: The Canada LetterChina’s Leaders Confront an Unlikely Foe: Ardent Young CommunistsA Social Media Star Is Shot Dead in Baghdad. Iraqis Fear a Trend.UNDERSTANDING THE TIMES: 3 Times Journalists on How They Cover Others’ Hometowns in an Era of Twitter StormsTurkey Clamps Down on a Group Erdogan Once Championed: Grieving Mothers