Democratic leaders in both houses of Congress Thursday introduced legislation to help combat the ongoing Tijuana River sewage ...

A team of Chinese researchers developed an innovative model to predict high concentrations of ground-level ozone.

Bangladesh, one of the world’s most climate-vulnerable countries, is witnessing a troubling rise in lightning-related deaths.

One major factor in deciding when and whether to exercise outdoors is your health status. AirNow recommends that people with ...

A combination of sewage overflows and coastal winds could be sending billions of airborne microplastic particles into the ...