|Beijing has issued its first ever “red alert” over the city’s smog, with the Chinese capital going into shutdown in an attempt to protect people from the deadly air.|
It is the first time ever that the highest possible state of caution has been declared in the city, which has more than 21 million residents.
|The warning means schools will close and construction and other industry in the capital will be limited.|
|Half of Beijing's private cars will be ordered off the road and 30 per cent of government vehicles also garaged.|
A red alert, issued when severe smog is expected to last more than 72 hours, is the highest of Beijing's four-tiered, colour-coded warning system.
|China's pollution has joined its Great Wall and achieved the dubious honour of being seen from space.|