The main pollutant, PM2.5, has reached a concentration 35.6 times greater than the limits set by the World Health ...

The sky over L.A. has previously contained signs, and people had the good sense to heed them. Before water from the Owens ...

When AQI values exceed 100, air quality becomes unhealthy, initially for sensitive groups and eventually for the entire population as values rise. The severity of air pollution in Dhaka is not new, ...

Old letters are treasured windows into the past. They lack the brutal honesty and starkness of diary entries, instead ...

Violent protests in Pucheng, northwest China, over the accidental death of a student; Summit between Ishiba and Prabowo revives cooperation between Tokyo and Jakarta on security ...

Behind the political fight over the new tolling program is a deepening crisis in the transportation system in New York City ...

Masks protect you from any [airborne] disease, and there’s flu that’s increasing as well. To add to that, the toxic dangers ...

In Los Angeles, people stay for the movie credits. After the awful images of these fires are gone, they will stay to rebuild ...

At least 1,80,000 people have been evacuated as wildfires in Los Angeles engulf about 45 square miles (117 square kilometers) ...

More than 150 flights were delayed as dense smog engulfed Delhi on Friday and reduced visibility to almost zero in parts of ...

Dense fog and severe air quality levels have caused travel chaos in India's capital Delhi. Visibility in several areas was ...

From stubble burning to toxic smog, Pakistan's air pollution crisis threatens its future; the only way it can rise above the ...