An curved arrow pointing right. These photos were taken in the exact same locations in Beijing within 24 hours of each other. On Tuesday, smog blanketed the city and hit 25 times what is ...

A London policeman wearing a mask for protection against the thick fog which hit most of the country and turned to smog in the city on Jan. 1, 1962. (Photo by Keystone/Getty Images) London's poor ...

LAHORE: The toxic smog which continues to grip Lahore and other parts of Pakistan, has worsened, with the city reporting over 15,000 cases of respiratory and viral infections in just 24 hours ...

Locals have come to dread the winter in Bishkek, Kyrgyzstan’s capital, with plunging temperatures invariably accompanied by a ...

It would take years for scientists to piece together the puzzle of this Los Angeles smog and decades to implement policies to improve the air we all breathe. Today, scientists are able to monitor the ...