With wildfires increasing in frequency, severity, and size in the Western U.S., researchers are determined to better ...

which was so dense that the light inside the plane sometimes went dusk-dim. “You couldn’t even see the clouds outside, the smoke particles were so thick,” says Twohy, who works for NorthWest ...

Wildfires in Arizona can send smoke drifting across the state and cause uncomfortable health issues for residents. ...

Dust, haze and smoke are ... In fact, brown carbon absorbs such a high level of visible radiation it’s classified as a greenhouse gas. “They’re like atmospheric sunscreen molecules,” Kidwell said.

The pyrocumulus clouds were also surrounded by smoke that appears light brown or tan-colored on the satellite image. Later in the day, the Line Fire’s pyrocumulus clouds eventually morphed into ...

At lower temperatures, such as those of smoldering grassfires, the process creates complex molecules called brown ... blue light from clouds of interstellar dust as we do from wildfire smoke ...