The error means that spending under Washington’s flagship carbon policy is far less effective than previously thought, according to state officials.

The Trump administration announced in December that it intends to break up the National Center for Atmospheric Research in Boulder, Colorado.

Washington state and federal wildlife officials, tribes and a nonprofit are using new tools in an intensive research project to investigate how harbor seals impact endangered salmon.

Over the past decade, invasive European chafer beetles have taken hold in Western Washington. Crows, racoons and other animals are tearing up lawns in search of the grubs.

Gov. Bob Ferguson told Washingtonians to brace for a lengthy recovery, and announced $3.5 million in state assistance for short-term needs such as groceries and hotel stays.

Record flooding in Washington state has forced tens of thousands of people to evacuate after torrential rains this week.

Unprecedented flooding drove tens of thousands of people from their homes. As local authorities share resources, the Trump administration has authorized federal emergency aid.

Pierce County’s Silvaseed, in Roy, Washington, collects, cleans, sorts and stores seed — and grows seedlings — to help restore forests hard-hit by increasingly intense wildfires.

Multiple communities, including those along the Skagit River are being evacuated, and other residents are encouraged to get ready to leave their property.

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.