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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. Your voice is essential.

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We believe that nature can heal if we restore what was lost. Our growing coalition shows that grassroots action works.

• Water access programs for Indigenous communities

Join thousands of water guardians organizing for change.

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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 harm. Now I'm leading others.' — David T., Watershed Advocate

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across industries to solve problems at their source.