"Controlled burns + thinning + clearing debris would go a long way in preventing this from happening every summer."

Over 800 wildfires are burning through forests in Canada, prompting heavy smoke warnings for millions of Americans.

Wildfires in Canada are pouring thick clouds of smoke into the US and will usher in unhealthy air quality for millions of people in Northeast and Midwest.

Wildfires in Canada are pouring thick clouds of smoke into the US and will usher in unhealthy air quality for millions of people in Northeast and Midwest.

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

Heavy smoke from several large wildfires blazing in Canada and Minnesota is expected to engulf large swaths of the Midwest and Northeast U.S. this week, exposing millions of…

States warned residents about air quality issues that could last for days

Heavy smoke from several large wildfires blazing in Canada and Minnesota is expected to engulf large swaths of the Midwest and Northeast U.S. this week.

Wildfires in Canada and Minnesota are sending heavy smoke to the Midwest and Northeast U.S., causing poor air quality alerts.

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.

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

TORONTO/NEW YORK: Toronto’s air quality ranked the worst among major cities globally on Wednesday as wildfire smoke from northwestern Ontario blackened skies and spread into the…

Mark Carney needs to get a hold of active forest management. Americans are increasingly frustrated...

The wildfires are burning in Ontario, Canada, Minnesota, and nearby regions, with smoke already affecting cities in the Midwest.

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…