Air quality alerts are in place for portions of 10 states from Minnesota to Delaware as officials warn the smoke may become ...

Air quality alerts are issued when pollution levels rise to unhealthy levels, warning the public, especially vulnerable ...

Chikungunya virus outbreaks have prompted the CDC to issue travel alerts warning U.S. travelers due to an "elevated risk" of ...

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts across the U.S.

The National Weather Service announced air quality alerts in 10 states Tuesday as smoke from the Canadian wildfires continues ...

Canada is battling more than 700 active wildfires across the country, roughly two-thirds of which are burning out of control, ...

The huge earthquake in eastern Russian generated the threat of a tsunami along with lots of anxiety among coastal dwellers in ...