air quality

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.

Temperatures were expected to soar to triple digits again Friday in Portland and into the mid-90s in Seattle as a heat wave bakes the Pacific Northwest,…

If you felt like there were more fireworks going off in your neighborhood this year around the Fourth of July, you’re probably right. Air quality data is…

Wildfire smoke is causing hazy skies in the region. The Puget Sound Clean Air Agency says smoke from wildfires started moving into the Puget Sound area…

There’s a joke in Seattle that summer doesn’t start around here until July 12– three weeks after the solstice and nearly a week after Independence…

If you’ve ever hiked to the top of a mountain and found yourself shedding layers of clothing because of increasing warmth, you’ve experienced a…

Seattle’s above-normal temperatures have been tempered somewhat by a grimy layer of smoke from British Columbia’s wildfires that moved in Tuesday. The…

If you have been enjoying the warm sunny skies of Seattle lately, you’re not alone. So many of us revel in the long stretches of dry weather that are so…

New Delhi suffers from intense air pollution every winter. On Monday, the stifling smog was particularly acute — in part because of the countless firecrackers set off for Diwali this weekend.

South Korea likes to point the finger at China for its pollution woes, but that's not the whole story. New research is examining how much Korean smog is caused by neighbors and how much is home-grown.