A new report from the American Lung Association notes a drastic decline in air quality and raises health alarms. Climate ...

Lee Zeldin recognized Mexico's willingness to cooperate with the U.S. to clean up sewage in the Tijuana River, but had some ...

A new report from the American Lung Association shows that Phoenix's ozone problem is worsening, while its particulate ...

The decision bought officials time to avert economic harm, but raised concern from health advocates about the continued impacts of ozone on Arizonans.

According to the ALA, two of Arizona’s counties earned “F” ratings for air pollution ... as much as 80% of Arizona smog drifts in from Mexico and California, which has prompted Arizona ...

EPA Administrator Lee Zeldin visited the polluted Tijuana River on the U.S.-Mexico border, calling for a '100% solution' to ...

The new move will make it easier for local officials to demonstrate that pollutants from Mexico and other countries ... time to get a handle on local air pollution problems. Zeldin said in a ...

The head of the EPA said Tuesday in San Diego that Mexico must stop the flow of billions of gallons of sewage and chemicals ...

EPA Administrator Lee Zeldin traveled to San Diego April 22, where he met with Navy SEAL vets and local leaders to assess a ...

American Rivers ranks the Tijuana River No. 2 on its list of most endangered rivers. Advocates are urging the U.S. and Mexico ...

San Diego County Supervisor Jim Desmond sent letters Wednesday to the Defense and State departments demanding intervention.