Beijing's smog has been in the news. But which are America's most polluted cities? Continue reading →
The Chinese capital's air is chronically unhealthy, and even stricter pollution regulations aren't eliminating the risk. Continue reading →
China issued its first-ever red alert for pollution in Beijing on Monday, as smog was projected to descend on the city. Continue reading →
Choking smog has reached more than 25 times the level considered safe.
Nobody walks in Los Angeles, and that means lots of cars, lots of exhaust, and a big smoggy sky. Where does L.A. rank among the globe's smog centers?
The sun triggers the release of smog-forming nitrogen oxide compounds from urban grime. Continue reading →
Fireworks are a beloved tradition of the Fourth of July, but the colorful displays also bring a spike in air pollution, a new study shows. Continue reading →
The removal of the documentary underscores the ruling Communist Party's sensitivity to public debate over China's notorious smog problem.
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