air pollution

The findings come as millions spent the weekend under air quality warnings from wildfires spewing smoke across the western U.S.

A coalition of activists is pointing to Tacoma’s approval of Bridge Industrial's huge warehouse development as environmental racism.

Haze is in the forecast around the Puget Sound area lately. It's not affecting air quality much, but it is changing the colors of sunrises and sunsets. We get an explanation.

Short-haul truck drivers are calling for an equitable share of Washington state's climate funding to help them transition from diesel to electric engines. Advocates say it would make a big dent in pollution and improve people's health.

The extreme heat in June left many people scrambling to purchase portable air conditioners. But energy efficiency experts have two words for anyone who isn’t in a huge hurry: heat pump.

This interview with the late Bill Ruckelshaus originally aired in March 2017. The Associated Press contributed to this report. Read a full obituary here.…

The wet season has returned to Western Washington, with showers and all out rain alternating through early next week, a continuation of the pattern we’ve…

Warmer weather and wildfire smoke are causing more air pollution in Washington. Three metropolitan areas in the state have the worst air pollution in the…

It may seem like nothing is happening to reduce greenhouse gas emissions in Washington state, especially after the failure of the carbon-fee measure,…

Community leaders in Seattle’s Beacon Hill neighborhood have a two-year environmental justice grant from the Environmental Protection Agency to address…