Donate

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 donations like you. Learn how you can join.

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

Join thousands of water guardians organizing against pollution.

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

We believe that nature can heal if we remove barriers. Our decade of victories shows what's possible.