Our Mission

Our work begins where rivers meet the sky and ends where groundwater feeds the soil. We use science to protect it all.

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

Our Mission

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

• Indigenous partnerships for sovereignty

Every action counts — from small donations to big movements. There's still time if we organize today.

Our Mission

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my action prevents harm. Now I'm leading others.' — David T., Water Guardian

We believe that nature can heal if we give it the chance. Our decade of victories shows that grassroots action works.