Here's what we know Monday, July 14 about the fast growing Green Fire and suppression efforts in the Shasta-Trinity National Forest.

"Our study shows that air pollution can jeopardize this critical ecosystem service. We estimate that ozone has prevented the capture of 290 million tonnes of carbon per year since 2000.

Breathing in polluted air for extended periods of time can pose a serious health risk for people, especially for vulnerable ...

Canada is battling more than 700 active wildfires across the country, roughly two-thirds of which are burning out of control, ...

Air pollution levels over Redding and parts of Shasta County are close to hazardous levels at times, due to heavy Green Fire smoke and pollutants.

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air for at ...

Moss data is an indicator of pollution levels but doesn't carry health thresholds. For that, the state Department of Environmental Quality would need to perform air monitoring, as it did following ...

Dangerous fire weather conditions fueled the explosive spread of the Gifford Fire in Southern California, increasing to ...

An air quality alert was reported by the National Weather Service on Sunday at 4:43 p.m. in effect until Monday at 8:45 a.m.

If tree-covered skyscrapers act like enormous air filters, this cluster of buildings will be a clean air oasis. China has broken ground on a "forest city" in the southern city of Liuzhou. The ...

Toronto is among the most polluted cities in the world on Monday morning as the city remains under a special air quality ...