Wildfires

The three countries have a years-long practice of sharing wildfire resources during each other's often intense seasons, which mostly don't overlap.

Fast, intense wildfires are making it harder for forests to recover and can change the entire ecosystem.

As the climate warms, some mountain trees are moving higher up, while others are spreading downhill. Scientists say something inside the trees may explain why. And that split could reshape watersheds and wildfire risk.

Smoke from Colorado’s intense wildfire season is drifting far beyond the flames, keeping people indoors and compounding long-standing air quality problems.

Major wildfires that sparked in late June, like the Aspen Acres, Willow and Gold Mountain fires, have shown lessened activity in recent days.

Friends and family are sharing what they’ll miss about Chris Andersen and Miles Elliott. Their deaths have also further shaken the wildland fire community, which has lost a number of firefighters during the intense and ongoing season.

Twelve fires are over 100,000 acres.

For the first time, the United States Forest Service authorized the use of N95 respirators for federal wildland firefighters.

New research suggests wildfires appear to be upending years of steady progress in reducing ozone pollution in the United States. It’s a trend reversal with significant health implications.

In recent years, dozens of drones have violated temporary flight restrictions around wildfires