Residents in Seattle and across Puget Sound are waking up to hazy skies and reduced visibility as wildfire smoke continues to affect air quality. The primary source is the Bear Gulch Fire inside ...

Thick smoke filled the Puget Sound leading up to the weekend, plunging air quality into the "unhealthy" category in parts of the region late Friday afternoon - and these smoky conditions and cloudy, ...

Wildfire smoke from Washington, Oregon, and British Columbia has severely impacted air quality in eastern Washington. Winds from the east and northeast have largely contained the smoke east of the ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) For most of the past decade, forecasters have been able to use satellites to track ...

There’s one night of the year where celebrations across the United States light up the map like no other. It’s the Fourth of July — when fine particulates fill the air. The impact fireworks can have ...

The air quality is reaching dangerous levels in parts of the Upper Midwest and north central U.S., where copious amounts of smoke from wildfires in Canada are wafting south across the international ...

BISMARCK, N.D. (AP) — Much of the Upper Midwest on Saturday was dealing with swaths of unhealthy air because of drifting smoke from Canadian wildfires, covering the northern region of the U.S. at a ...

A strange phenomenon appeared on the Seattle skyline Sunday when a near-black cloud-like ring hovered over Lumen Field and downtown Seattle. “Some believe it’s a UFO, while others think it could be ...