Dams

Two dams removed from Washington’s Elwha River were branded as salmon-restoration projects, but their watershed and scientific impacts are just as significant.

A hatchery program puts freshwater mussel benefits on center stage.

To restore Southern Resident killer whales and salmon, we need to look at our dams — and ourselves.

We have five questions for Shelley Silbert, executive director of the advocacy group Great Old Broads for Wilderness.

Panama’s Barro Blanco dam was supposed to help fight climate change. It ended up damning a culture.

Southern Resident killer whales have a shortage of food and an overdose of deadly pollutants.

Mountaintop mining and excrement-filled lagoons threaten the unique biodiversity of the American southeast.