Plumes of smoke are blanketing large swaths of the U.S. and parts of Europe, presenting risks for those breathing it ...

An Air Pollution Action Day was called Wednesday morning for the Chicago area and is in effect until midnight, weather ...

Smoke from several Canadian wildfires has drifted into the Bay Area, causing officials to warn of worsening air quality ...

To check your state's air quality, visit AirNow's website, and plug in your zip code, city or state. Here's what to know as ...

Wildfires scorching several Canadian provinces have driven at least 33,400 people from their homes, with smoke now reaching ...

Canadian mining company Hudbay Minerals said on Wednesday it had temporarily suspended operations in Snow Lake, Manitoba, due ...

Firefighters have suppressed the large fire that broke out in north-central Oregon a week ago, as well as a small fire that ...

Parts of central Pennsylvania are under a code orange air quality alert, but the Midwest is seeing bigger air quality ...

When the threat of wildfires forced power shutoffs in Calistoga, California, it meant firing up dirty diesel generators.

More than 25,000 residents in three provinces have been evacuated as dozens of wildfires remained active Sunday and ...

L.A. suffered its largest quarterly construction-cost jump in a database that dates to 2013 and the first quarter’s biggest ...

Smoke from Canadian wildfires and desert dust from the Sahara are creating unhealthy air quality from New York City to Miami.