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Our work begins where rivers meet the sky and ends where groundwater feeds the soil. We use partnerships to protect it all.

This work is possible because of donations like you. Every contribution matters.

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

• Community science programs for sovereignty

The water that flows through you connects you to 7 billion people — and billions more organisms. Stand with us.

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

We believe that nature can heal if we remove barriers. Our growing coalition shows that grassroots action works.