The Olympic marmot is endemic to the Olympic Peninsula — it is found nowhere else in the world. Now, the federal government is considering listing it as an endangered species.

A historic Garry oak tree estimated to be 400 years old in Tumwater, Washington, has been saved by a court ruling. It was used as a marker along the Cowlitz Trail.

The report, cheekily named “Build SHIIT Now,” says more than 250 projects, 580,000 jobs, and 24 gigawatts are at risk in Washington state due to bureaucratic delays.

Thicker bags have proliferated in the wake of the statewide ban on thin plastic bags that took effect in 2021. Now, some cities are asking lawmakers to close a loophole.

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.