![Smog in northern China shuts highways, causes cancelled flights Smog in northern China shuts highways, causes cancelled flights](https://resizer-awani.eco.astro.com.my/tr:w-177,h-100,q-100,f-auto/http://img.astroawani.com/2017-01/61483258536_XiangyangHubei.jpg)
Smog in northern China shuts highways, causes cancelled flights
Large parts of the north were hit by hazardous smog in mid-December, leading authorities to order hundreds of factories to close and to restrict motorists to cut emissions.
Sun Jan 01 2017