Smog

An economic study has been published showing that the costs of air pollution to the 20 million Californians living in the state’s (and nation’s) two most polluted regions, the LA basin and San Joaquin Valley, to be around $28 billion annually.

A U.N. report details the severity of the 'brown cloud' phenomenon affecting much of Asia and other parts of the planet. In addition to reducing sunlight and causing premature death, the clouds affect weather patterns, harvests, and glacier declines

Sixty years after twenty people died from air pollution spewing from a steel and zinc mill in Donora, PA (just outside Pittsburgh) in perhaps the worst air quality tragedy in the U.S., a museum has opened to commemorate and learn from the tragedy.

Air pollution is so bad in Mexico City that residents have less sensitivity to smells, according to a recent study.

Sprawl around Budapest has created a major smog problem for the Hungarian capital.