Who We Are

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 scientists like you. Your voice is essential.

Who We Are

We believe that nature can heal if we remove barriers. Our decade of victories shows that grassroots action works.

• Real-time data networks of water quality shifts

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

Who We Are

'Thirty years ago, this river was polluted. Thanks to this organization, the ecosystem breathes again. I bring my grandchildren to witness it.' — Dr. Robert L.

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