Who We Are

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 partners like you. Together we can turn the tide.

Who We Are

We believe that nature can heal if we give it the chance. Our decade of victories shows that change happens.

• Drought planning for coastal protection

The water that flows through you connects you to 7 billion people — and countless ecosystems. Join the fight.

Who We Are

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my data prevents harm. Now I'm training others.' — Sarah K., Community Monitor

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