In an about-face, the agency would instead approve five state "good neighbor" plans, thereby potentially skirting new pollution control requirements.

If finalized, this rollback will exempt 10 states from the Good Neighbor Plan and its limits on smog-forming pollution from power plants.

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.

It’s easy to tell when it’s smog season in New Delhi; the air gets darker, heavier and starts scratching the throats and testing the lungs of the city’s 34 million residents. Pollution been an issue ...

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.

NEW DELHI (AP) — Dense toxic smog blanketed India’s capital on Monday, pushing air pollution levels to their worst levels in weeks, disrupting travel and causing authorities to impose the strictest ...

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