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:5 of Our Best Reads on Viktor Orban, Hungary’s Returning Far-Right LeaderTrump Tells Macron the U.S. Will Withdraw From Iran Nuclear DealMaldives' Chief Justice Jailed for Nearly 5 MonthsFacebook Bans Foreign Advertisers for Ireland Abortion ReferendumProtest Leader Is Elected Armenia’s Prime Minister in Stunning TurnaroundIran, Angry and Divided, Fears Deeper Crisis if Nuclear Deal Ends