Dry and hot conditions return to western Washington on Tuesday and Wednesday, bringing an elevated risk of heat-related illness and fire danger.

Redmond had the worst air quality in the state Wednesday afternoon, with DEQ's air quality monitoring map showing "unhealthy" ...

PM2.5 pollution is spiking in many counties in Utah and is accompanied by the typical summer pollutant of ozone. It makes for a nasty mix of pollution.

The July 7 report from Environment America Research and Policy Center found that 61% of tested beaches nationwide had ...

A push of marine air tonight will send in the clouds and fog overnight through the Chehalis Gap into the south and central Sound by Thursday morning. This will signify an end to our heat wave. While ...

Americans in at least eight states face potentially unhealthy levels of air pollution on Wednesday, official data shows. The ...