Tens of thousands of residents could face evacuation orders. The rain is threatening to bring catastrophic flooding as rivers near historic levels. It's already prompted rescues and road closures.

Nighttime coyote sightings are not uncommon in Western Washington. But a recent bump in reports of daytime encounters has some Seattle residents near Volunteer Park and the Washington Park Arboretum concerned.

University of Washington oceanographers decoded data from two sets of native coral samples collected more than a century apart, and found acidification there was accelerating.

Every summer, the quiet waters of Willapa Bay in Southwest Washington become a shark superhighway.

There's a lot of food — and food waste — around the holidays. From leftovers to composting, local governments are encouraging people to pay attention to what they buy, store, donate and discard.

A new study from the Oregon State University College of Forestry uses satellite imagery and data to measure the extent of tree damage from the unprecedented heat.

Federal officials have not responded to the October deadline for the tribe’s permit for a traditional subsistence hunt of eastern North Pacific gray whales.

The Statsraad Lehmkuhl is traveling the globe to raise awareness of the ocean’s role in our future as the climate changes. The world-renowned ship recently docked in Seattle.

The remnant of Typhoon Halong slammed the Yukon-Kuskokwim Delta, an area in Western Alaska hundreds of miles from the U.S. road system. More than a thousand people are displaced.

The Baker River salmon run reached a historic milestone this year due to efforts from the tribe, state wildlife officials and the hydroelectric utility that caused the decline.