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:Pope Francis Denies He Knew of Abuse by McCarrickSure, the Populists Gained, but the Real Winners May Be for EuropeMexico Files Charges to Launch an Anticorruption DriveSupreme Court, Tornadoes, Serena Williams: Your Tuesday Evening BriefingGermany’s Political Establishment Looks Fragile After E.U. VoteMore Than Patriotism on Their Sleeves: Military Patches Sport Trump Likeness