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Due to smoke from wildfires, several U.S. cities had an AQI over 100 on Aug. 5, which means the air is unhealthy for ...

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 ...

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

According to the Canadian Interagency Forest Fire Centre, 742 wildfires are currently burning in Canada, with 201 of them out ...

The Wisconsin Department of Natural Resources removed the western portion of the state from its latest air quality alert update.

Canada is battling more than 700 active wildfires across the country, roughly two-thirds of which are burning out of control, ...

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

The thick plumes of smoke in Canada are being driven southward into the U.S. by northerly winds on the backside of an area of high pressure.

The air quality in several U.S. states is taking a hit as smoke floats over the border from the Canadian wildfires. Here's ...

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.

President Donald Trump and congressional Republicans have cut $75 million in money meant to support climate projects in ...