The pollution poses a threat to the Portage Bay shellfish beds of the Lummi Nation and raises health concerns for valley residents.

Faulty tanks have caused a $20 billion environmental disaster across the U.S. Who will pay for the cleanup — the stations, oil companies, or you?

A small part of the American Rescue Plan provides direct, flexible dollars to compensate for untaxable national parks or other federally owned lands.

The Duwamish Valley Climate Resilience Survey found environmental impacts outweigh issues like crime and housing for residents. How can people prepare?

Trains were supposed to be climate-friendly transportation. Now, extreme weather is making them less dependable.

The law regulating trees on private property hadn't been touched in over a decade. But advocates wonder: Is the new one closer to meeting climate needs?

Western science and traditional knowledge help them monitor seaweed health, vital to their culture and local ecosystems.

Gov. Jay Inslee and a bipartisan group of legislators are using a low-tech approach to combat deadly warming waters.

Our guide to whale nomenclature can help you follow the trail of numbers and nicknames.

Colville elder Randy Lewis leads a day-long bus trip through the canyons, columns and geological structures that hold special meaning for local tribes.

Children and teens from seven tribes gathered on Whidbey Island to explore the traditional food culture of their ancestors.

The U.N. High Seas Treaty is a historic agreement for marine conservation, but its impact on the plummeting fish population is still uncertain.

Battery manufacturers operating in the state will be responsible for making the recycling process easier and cheaper for consumers.

SB 5371 expands the buffer zone for endangered southern resident killer whales, who depend on sonar to hunt and communicate in the Salish Sea.

Is it hard to go carless around the Sound? One frequent rider shares how to navigate one of the nation's busiest transit systems.