Washington, Oregon and Montana will become one of seven hydrogen hubs through a new Department of Energy program.

As offshore wind projects advance in Oregon and California, Washington leaders say they want a piece of the manufacturing pie.

The Pacific Northwest Seismic Network recorded a 4.5-magnitude earthquake at 7:21 p.m. south of Port Townsend.

The state’s Department of Ecology will install dozens of air-quality monitors around Washington, but environmental justice advocates question the strategy.

By the early 1990s fewer than 200 northwestern pond turtles remained in Washington. Now, the U.S. Fish and Wildlife Service might list them as threatened.

Spokane County will use the money to pay for case managers, temporary housing, asbestos testing and debris removal.

Trawlers from Seattle were among those that caught orcas this year. Scientists are trying to figure out why it’s happening more often.

Federal agencies and tribes signed an agreement Thursday committing $200 million to restoring salmon to Upper Columbia Basin.

During alarmingly dry conditions last month, two Spokane County wildfires sparked within hours of each other, burning hundreds of homes and killing two people.

A lawsuit was filed in 2019 over the Navy’s increased jet flights. Now a judge has ruled the military must review its impact on local residents.