You might want to dig into your pandemic-era mask stash if you live in deep South Texas.

Last December, the United States and Mexico signed an agreement aimed at curbing the pollution flowing into the Tijuana River ...

In a shocking revelation, our capital city’s air quality has deteriorated to levels worse than those of Mexico City, long considered one of the most polluted urban areas in Latin America. This ...

Despite worsening ozone air pollution in much of the country, the US Environmental Protection Agency (EPA) intends to weaken ...

SANTA FE, N.M. (AP) — New Mexico environmental regulators on Friday issued a $47.8 million fine on allegations of excess air pollution at a natural gas processing facility in a prolific oil production ...