A mini forest has been planted at the University of Washington's Tacoma campus. Participants are hoping this will help to improve the city's tree canopy — and provide green space on campus.

As the saying goes: whiskey is for drinking, and water is for fighting. But in Walla Walla, people are now working together to find solutions to the region’s water problems.

Washington regulators want your thoughts on jet fuel that could be made from things like oilseeds or greases.

Washington state regulators have recommended striking dozens of planned wind turbines from a massive wind farm outside the Tri-Cities to avoid viable ferruginous hawk nests in the middle of project.

The U.S. Department of Energy announced that they have treated the first batch of radioactive tank waste at Hanford in southeast Washington. Workers bound the waste up into glass.

The court filing comes in response to the Trump administration cancelling an agreement with states and tribes.

Local volunteers are stepping up to care for the Enchantments, one of Washington's most treasured recreation areas.

If you’ve tried to boat or fish on the lower Yakima River lately, you might have noticed matted weeds clogging the waterway. Now, work is underway to get it under control.

Scientists have developed a new way to study really small fish. They’ve designed a tag that’s about the size of a grain of rice.

One county in south-central Washington state has become a hub for renewable energy development. It’s divided people living in Klickitat County – those who welcome development and those who steadfastly oppose it. People are still waiting on new rules for future renewable projects.