Yes, and let's not forget that much of China's coal is the high sulfur kind.  On a visit to Xingdao, where they make the beer, about ten years ago, I was taken up a track to a hill with a view overlooking the city.  We travelled the last part on foot because the road had come to an end.  It was October, the start of the heating season, and I remember the burning in my eyes, the sulfur taste in my mouth and the effect on my lungs much better than the view.

Along with the GHG effects, we might also pause to remember sulfur emissions and acid rain at some point.