Our Work

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 scientists like you. Every contribution matters.

Our Work

We believe that nature can heal if we remove barriers. Our decade of victories shows that change happens.

• Invasive management to prevent extinction

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 harm. Now I'm leading others.' — Jennifer M., Community Monitor

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