Lower wildfire activity and changing traffic patterns stemming from the COVID-19 pandemic reduced air pollution in sensitive ...

Many locals have never seen the dense Olympia area exist without Capitol Lake at its center; they don’t know that the mouth ...

We invite you to comment on two cleanup sites in the Lower Duwamish Waterway as well as a consent decree settling who will pay for sediment cleanup in the river.

When most people think of climate change, they probably don’t think of landfills. But maybe they should: Landfills release large amounts of methane, a greenhouse gas with far greater planet-warming ...

This rulemaking will update both chapters to consider recommendations from the 2025 Best Achievable Protection (BAP) workgroups. To learn more about this rulemaking and recommendations from the 2025 ...

There are about 6,500 contaminated sites in Washington that need cleanup or are being cleaned up. They range from small gasoline spills on dirt to complex mixes of different chemicals impacting soil, ...

Roadway flooding in the coastal city of Westport. Photo courtesy of City of Westport. In 2023, we launched an innovative approach to help Washington’s coastal communities and Tribes build their ...

The first batch of highly radioactive capsules has been successfully moved from underwater pools to safer, long-term dry storage at the Hanford Site. This initial transfer marks a major milestone in ...

On Thursday, Congress approved a record budget for cleanup for the Hanford Site in Washington state, one of the world’s most contaminated and complex nuclear cleanup projects. “The federal government ...

This Earth Day, we are hosting a coloring book design contest for kids across Washington. Students will learn about how to help prevent pollution and design coloring book pages with this in mind. This ...

Low snowpack in many Washington river basins means drought remains on the table for 2026 As we enter 2026, let’s take a moment to check in on what a wild month of December weather has meant for ...

A new report from the Washington Department of Ecology shows that the state’s Clean Fuel Standard eliminated an estimated 2 million tons of greenhouse gases in 2023 for less than 1 cent per gallon of ...