Beijing, Bracing for 5 Days of Heavy Pollution, Issues Red Alert The most severe notice in a four-tier system requires schools to close and half of all privately owned cars to stay off the roads. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:A Relic of World War II Shuts Down a London AirportBritish Charity’s Executive Quits as Furor Grows Over Aid Workers’ MisconductEx-President of Georgia Is Seized at Restaurant in Ukraine, and Deported to PolandTrump Taps Harry Harris, Known for Being Tough on China, as Australia EnvoyA Nearly Invisible Oil Spill Threatens Some of Asia’s Richest FisheriesFamily of Fatally Shot Cree Man to Meet With Trudeau Cabinet Members