Federal regulators ruled Monday that pollution from Mexico , not local sources, is why Phoenix fails air quality standards.

A new study has identified Texas as the likely source for nurdle plastic pollution on Texas and Mexico beaches. The study was led by a University of Texas Marine Science Institute graduate student, ...

The EPA granted the Phoenix area an exemption from stricter air quality regulations, citing international emissions from Asia and Mexico that are outside local control.

A new report shows air pollution threatens the majority of the world’s population, while information gaps increase the risks.

Add Yahoo as a preferred source to see more of our stories on Google. A new study has identified Texas as the likely source for nurdle plastic pollution on Texas and Mexico beaches. The study was led ...