Our Work

Water doesn't recognize borders — and neither do the threats it faces. Our local teams work tirelessly to defend it.

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

Our Work

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

• Early warning systems of water quality shifts

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

Our Work

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my action prevents crisis. Now I'm training others.' — Sarah K., Watershed Advocate

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