A hodgepodge of utilities run the West’s electrical grid. Will billions in federal funding help them get along?

How a chat in a Portland pub led to a trek to the tip of South America to find the southernmost tree.

Climate change is a global problem, but its impacts vary by location. To meet the needs of the Puget Sound region, we need our own center for research.

While deaths and illnesses among agricultural workers mount, state regulators face pressure to do more to protect them.

To help salmon and free a culturally important stretch of the Skagit River, the Upper Skagit tribe demands that Seattle tear down the dam.

Some parts of Washington have so far avoided smoky air. But that could change. Here’s what you can do to be ready.

Air conditioning is rare in Seattle, but if we want to breathe indoors amid hotter, smokier summers, we’ll have to take action — soon.

The climate crisis has added new urgency to an ambitious idea. 

Unprecedented temperatures recall a 2015 heat wave that killed 99% of salmon returning to one stretch of the Snake River.

U.S. Fish and Wildlife Service considers listing Mt. Rainier ptarmigan on the federal endangered species list.