If you thought London s pollution crisis couldn t get any worse, take a look at this terrifying photo from Beijing.
Beijing from the air as smog blankets the city.
Just otherworldly - and alarming pic.twitter.com/P8oTLRFomR
— Jim Sciutto @jimsciutto January 4, 2017
Captured by CNN s Jim Sciutto, it shows smog covering all but the tips of the tallest skyscrapers in the Chinese capital.
One of the causes of the heightened pollution is the burning of coal fires over winter months.