As Canadian wildfires spread smoke across the U.S. the air pollution is dangerous to health. But there are ways to protect ...

Viewers shared snapshots of hazy skies as Canadian wildfire smoke continues to impact air quality in parts of Maine.

This is the second most severe fire season on record in Canada, according to the National Interagency Fire Center.

While alerts have been downgraded from 'unhealthy for sensitive groups' to 'moderate,' the air quality could still be a ...

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast into Tuesday.

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.

This is why even without the presence of smoke, many sunrises and sunsets appear yellow or orange. Smoke particles in the sky ...

Wildfires raging across Canada show no signs of slowing down, and their effects continue to be felt in Maine and throughout ...

Emily Pike shows you what to expect as more wildfire smoke will enter into the region. Authorities locate child missing for 7 ...

Air quality alerts from Canadian wildfire smoke spread to the Northeast on Sunday, stretching as far as northern Maine. It ...

Maine's air quality continues to suffer from lingering Canadian wildfire smoke, so we asked a health expert why exposure to ...

Smoke from ongoing wildfires in Canada is impacting the air quality in states across the Midwest and Northeast of the U.S.