An air quality alert is in effect for all of Massachusetts as smoke from Canadian wildfires descends into the Boston area.

NORFOLK, Va. — No, that's not fog — Wildfire smoke from over 700 active wildfires in Canada has blown thousands of miles down ...

Plus, ABC News’ Chief Meteorologist Ginger Zee has the latest on the second earthquake in less than a week on the East coast.

Millions in the U.S. face health threats as Canadian wildfire smoke causes air quality to plummet and triggers official ...

Smoke from wildfires in southwestern Manitoba, Canada, will impact the D.C. area Wednesday as it makes its way through the ...

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

The wildfire areas of Manitoba and Saskatchewan are projected to receive 50 millimeters to 100 millimeters of rain this ...

Hundreds of Canadian wildfires have worsened the air quality in many parts of the United States Donald Trump's executive ...

Canadian wildfire smoke has worsened the air quality in multiple states and irritated the eyes, noses and throats of many ...

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.  Air ...

The smoke drifting across the border contains fine particulates, pollution so small that it’s basically invisible to the ...

Canadian wildfire smoke is continuing to choke the sky from the Midwest to the Northeast, but conditions should improve ...