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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 scientists like you. Learn how you can join.

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We believe that nature can heal if we remove barriers. Our growing coalition shows that change happens.

• Native species protection to revive ecosystems

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

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'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my voice prevents extinction. Now I'm inspiring others.' — David T., Community Monitor

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