Q: Many years ago, California began exempting older cars from having to complete a smog check to renew the vehicle registration for the year, Roy Saldin of Moreno Valley said. “They seemed to be doing ...

Two environmental groups that sued to force EPA action on smog cleanup in the Phoenix area are bashing the agency’s proposal to instead seek a waiver that pins the blame on international pollution.

Every winter, Pakistan’s air quality drops to dangerous levels, blanketing major cities under thick, toxic smog. According to ...

The Bhogi festival in Tamil Nadu, celebrated before Pongal, has seen significant efforts to reduce environmental impact this year. With extensive awareness campaigns and night patrolling by the Tamil ...

A thin layer of smog enveloped several parts of Delhi-NCR on Tuesday morning, with the average Air Quality Index (AQI) across the national capital recorded at 294, placing it in the "poor" category at ...