Four ideas to fix Beijing's smog airpocalypse, and one that will work  | Consumer and technological trends in China | Scoop.it
From gizmodo.com - January 16, 2015 12:15 AM

"The worst smog of the year so far swept into Beijing this week, coating the city in a grainy, deep grey murk on par with what the city endured in 2013, pictured above (though you'll see it's popping up again today) ..."