The smoke has gotten so bad in some states this week that elected officials demanded answers from Canada, and one senator has even called for sanctions.

Wildfire smoke has settled thickly in parts of New York, Connecticut, Wisconsin, Michigan and Minnesota—and it’s heading further south.

A massive plume of smoke from wildfires burning across Canada has swept into the United States, degrading air quality across the Midwest, Northeast and Mid-Atlantic.

Around 100 million Americans could be affected by the wildfire smoke, though impacts will vary by location

Over 100 wildfires are burning in Canada, with winds carrying the smoke southeast. Warnings about unhealthy air extend from Minnesota through Toronto and into New York.

Warnings about dangerous, unhealthy air extended Wednesday from Minnesota through Toronto and into New York.

Roughly 100 wildfires are raging out of control in Ontario, sending smoke streaming more than 1,000 miles from their origin.

Fires in parts of Canada are blanketing several cities with smoke. Experts recommend limiting time outside, purifying indoor air and wearing a respirator if outside.

Wildfire smoke is dense enough in a handful of states that experts recommend masks for those who can’t stay indoors.

Massive plumes of Canadian wildfire smoke have started to pour over the border into the United States, bringing dangerous air quality to more than 100 million people in the…

Wondering why it smells like smoke outside? Canadian wildfires are impacting millions in Ontario, Minnesota, Toronto, New York, Michigan, Wisconsin and Boston.

Millions of Americans face air quality alerts from Minnesota to New York as authorities urge people to stay indoors

Large swaths of the US remain under air quality warnings

Hundreds of fires are burning out of control, and several factors could help bring more smoke to the U.S. for days or even weeks to come.

NEW YORK (AP) — Heavy, pungent smoke from Canadian wildfires darkened skies in the U.S. on Thursday, from the Great Lakes to parts of the East Coast, reducing visibility for

Air quality levels in Chicago, Detroitt and New York reached dangerously high levels on Tuesday as the US cities were shrouded in smoke produced by wildfires raging through…

A National Weather Service meteorologist said even if winds from the northwest clear skies as expected later this week, the smoky air could keep returning until the fires are out.…

A think blanket of hazardous wildfire smoke spread from the Great Lakes to the East Coast on Thursday, putting millions of Americans at health risk.

More than 850 active fires were recorded in Canada on Thursday

Heavy, pungent wildfire smoke darkens skies in the US from the Great Lakes to parts of the East Coast, reducing visibility and prompting warnings that breathing the air outside…

NEW YORK: Heavy smoke from hundreds of wildfires in Canada enveloped a swath of the US from the Midwest to the...