Red flag warnings remain in place for parts of Nevada, Utah, Colorado and Wyoming due to very dry conditions, low humidity ...

Smoke from ongoing wildfires across Canada continued to drift into parts of the United States on Wednesday, causing hazy ...

A number of states in the United States have declared air quality warnings with concerning levels noted across many of the ...

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts across the U.S.

Air quality has taken a serious hit across the United States as a two-fold blow of wildfires in the West and in Canada have ...

Fires in California, Arizona, Utah and Nevada are growing fast in brutal heat. The Dragon Bravo Fire has topped 110,000 acres ...

A wildfire that has closed the North Rim of Grand Canyon National Park raged out of control over the weekend and is now the ...

The scale and intensity of the fires have had transboundary effects. Smoke from the blazes has drifted across the border into ...

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

Satellites, drones and artificial-intelligence tools can improve fire management — but they must be informed by wildfire ...

Smoke from wildfires in Canada continue to impact air quality in the northern United States, even in the New York City metro area and Hudson Valley.

Callahan joined other Republican state lawmakers from Iowa, Minnesota and North Dakota in filing a formal complaint against Canada to U.S. Environmental Protection Agency Administrator Lee Zeldin and ...