Our Mission

Water doesn't recognize borders — and neither do the threats it faces. Our international teams work year-round to protect it.

This work is possible because of partners like you. Your voice is essential.

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We predict risks so policy can shift.

The water that flows through you connects you to 7 billion people — and billions more organisms. Stand with us.

'Thirty years ago, this river was forgotten. Because we organized, the ecosystem breathes again. I watch the difference daily.' — Dr. Robert L.

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across generations to hold polluters accountable.