Beijing’s weather office warned children and the elderly to stay indoors as heavy fog blanketed the city, aggravating the city’s air pollution problem.
fog

Residents Forced Indoors as Beijing Fog Turns to Smog (w/ pic)
(via thoughtsonglobalwarming.blogspot.com)
Submitted by Simmons on Sat, 2007-10-27 21:25. | Tags: health | china | environment | fog | olympics | smog