More than 100 of the blazes are in the United States, including three dozen uncontained large fires, according to the ...

Widespread red flag warnings were issued across the Western U.S. on Wednesday amid gusty winds and low humidity.

The wildfire on the South Rim has burned 2.5 square miles, with no containment of the perimeter and weather conditions ...

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Researchers at the University of Colorado Boulder found that wildfires in Colorado and throughout the western United States ...

The current infrastructure also isn’t set up to fully account for the shifting behavior of wildfire smoke, which can travel ...

Visitors and staff at two national parks in the US West have been evacuated because of wildfires. Black Canyon of the Gunnison National Park, about 260 miles (418 kilometers) southwest of Denver ...

A wildfire that destroyed a historic Grand Canyon lodge is continuing to spread out of control after it had been allowed to ...

A development called Sea Country, near the neighborhood that was recently ordered to evacuate during a wildfire, is close to ...

Members of the U.S. Senate Energy and Natural Resources Committee differed along party lines at a Thursday hearing about how ...

Pentagon officials said details were still being worked out, and experts doubted Mr. Trump’s threat of huge tariffs for ...