The Inland Northwest saw record-breaking hazardous air quality over the weekend as a weather system blew smoke from Oregon and California wildfires into the area before stagnating, allowing the heavy ...

Air quality in India's capital New Delhi deteriorated to hazardous levels on Tuesday with readings the highest in the world, ...

The Hazardous Air Quality Emergency Preparedness Bill will ensure local governments have the resources they need to respond to this dangerous effect of climate change. Smoke from wildfires in Canada ...

Thick smog engulfed Punjab’s capital on Saturday morning as Lahore topped the list of the world’s most polluted cities, ...

Fireworks set off to celebrate the Diwali festival have worsened the air quality in India’s capital New Delhi, making it the ...

Thick smog blanketed India’s capital Tuesday, a day after millions celebrated the Hindu festival of Diwali with fireworks ...

Lahore is the world's most polluted city. Air quality is hazardous. Health warnings are issued. Authorities are cracking down ...

“For the first time in Delhi, preparations have been completed to induce artificial rain through cloud seeding, marking a ...

New Delhi and its metropolitan region — home to more than 30 million people — routinely ranks among the world’s most polluted ...