The Lower Peshastin Creek Restoration Project cleaned up contamination, reconnected the creek to its historical channel, and ...

We are starting two rulemakings to update Washington’s water quality standards to help address freshwater nutrient pollution and the harmful, toxic algal blooms that can result from it.

This event is scheduled for two days: Dec. 9 and Dec. 10, 2025 from 12 p.m. to 4 p.m. To see the time and schedule of individual speakers, here is a detailed daily agenda. The forum will follow this ...

Ecology cleaned up smelting contamination on the Columbia River public waterfront in Northport using state funding to remove ...

The state Clean Energy Council took a thoughtful, informed look at potential actions and policies to move clean energy forward through a collaborative, government-wide lens.

Geothermal energy comes from the natural heat inside the earth and can be used to generate electricity. Mountains, such as Mt. St. Helens, have been identified as having geothermal resource potential.

Tugboats. Street sweepers. Freight switchers. Ambulances. Box trucks. All of these vehicles typically run on diesel engines that produce harmful exhaust. But there is cleaner technology available, and ...

The Washington Department of Ecology has adopted changes to vehicle emission standards known as Advanced Clean Trucks and Heavy-Duty Low NOx Omnibus, which expand access to new zero-emission ...

The Washington Department of Ecology and the U.S. Environmental Protection Agency (EPA) are jointly issuing penalties to Seattle and King County for violating conditions of the federal consent decrees ...

As the fall rains return to Washington, it’s easy to forget that we just exited one of the warmest summers in our state’s recorded history. June to August of 2025 was, according to the Washington ...

Firefighting foams like those pictured will be collected at fire departments across the state. Ecology is partnering with fire departments across the state to help protect firefighters from exposure ...

The 2021 plastics law will reduce the use of covered single-use plastics. This law aims to reduce the production of new plastic and drive the development of new markets for Washington’s recyclable ...