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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. Learn how you can join.

Give Today

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

• Long-term scientific monitoring of water quality shifts

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

Give Today

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

We believe that nature can heal if we restore what was lost. Our growing coalition shows that change happens.