Add Yahoo as a preferred source to see more of our stories on Google. If you live in Boise, you may have noticed some smoke creeping over the Foothills and into the Treasure Valley in recent days.

Smoke from raging wildfires in Canada is worsening air quality in some U.S. states. But will Greater Cincinnati be affected?

Wildfire season usually happens the in summer and fall, but the USDA says increases in large fire activity have been driven by rising temperatures.

Smoky skies continue to block out some of the radiant sunshine across New England Wednesday as Canadian wildfire smoke wafts across the region. More than 200 wildfires are raging across Central and ...

The occasional drifting haze from distant wildfires has long been seen as insignificant for human health, compared to more conspicuous daily emissions belching from factories and vehicles. But the ...