BEIJING -- In summer, a gray industrial haze coats this city of more than 15 million, descending over the Great Wall, sticking to humid hillsides and obscuring skyscrapers. Soaring temperatures and a lack of wind conspire with gunk-spewing traffic to foul the air. -
Gray Wall Dims Hopes of 'Green' Games
BEIJING -- In summer, a gray industrial haze coats this city of more than 15 million, descending over the Great Wall, sticking to humid hillsides and obscuring skyscrapers. Soaring temperatures and a lack of wind conspire with gunk-spewing traffic to foul the air.-
By Maureen Fan