BBC: Beijing's air pollution has soared to hazardous levels, but cleaning up the problem is not straightforward, and is dependant on prioritising quality of life over economic growth.
When I wake up in the morning, I pause briefly before opening my curtains, and what I see out of my window is likely to set the tone for the rest of the day.
I am not checking up on the weather. Instead, I want to know exactly how bad the pollution is going to be. On some mornings, it is truly appalling. It is as if...