Smoke produced by hundreds of wildfires burning across Canada has drifted thousands of miles and nearly circled the entire ...

Smoke from hundreds of wildfires in Canada has choked the skies over dozens of northern U.S. states in the Great Lakes and ...

Smoke drifting south from Canadian wildfires has made skies in Pennsylvania and other states hazy this week. The Pennsylvania ...

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states ...

Filters are routinely checked when cars come in for service, and service techs increasingly find filters caked with residue.

Tuesday stays warm and dry, with highs near 90 and a bit more humidity under partly cloudy skies in the Philadelphia region.

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states from Wisconsin to Maine.

For your safety, it’s recommended to stay inside as much as possible with air conditioning on when air quality alerts are ...

Canadian wildfire smoke will lend a hazy appearance to the sky, and high clouds blanket much of the Philadelphia region, ...

Small particles can get lodged in crevices of organs from lungs to arteries, causing inflammation and other health issues.

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.  Air quality alerts were in effect Tuesday in several states, ...

The true problem is the world’s climate is warming. Canadian forests are burning because they’ve been subjected to years of ...