Air quality alerts are in effect on Tuesday in 10 states as toxic smoke from hundreds of wildfires burning in Canada ...

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

Poor air quality from the Canadian wildfires remains a concern Tuesday for much of the Upper Midwest and the Northeast ...

Smoke from nearly 200 uncontrolled wildfires in Canada is triggering widespread air quality alerts across the Upper Midwest ...

From the column: "As Stauber ... (has) to be well aware, the ever-increasing prevalence of wildfires, both in Canada and the ...

The remaining 10 states affected by medium to heavy smoke from the wildfires are Colorado, New York, New Jersey, Connecticut, Pennsylvania, Vermont, Massachusetts, Indiana, New Hampshire, and ...

Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring ...

The Canadian Wildfire Smoke that has been Unhealthy and Dense at times since last Wednesday has been pushed north and east of ...

The Minnesota Pollution Control Agency issued a new air quality alert for northeast Minnesota due to the wildfires burning in ...

It's unclear whether and how Texas law enforcement will be able to work with out-of-state law enforcement to execute an ...

Millions of Americans across the Midwest, Northeast and swathes of the South and Southwest are under air quality alerts Monday. Newsweek's live blog is closed.