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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 partners like you. Learn how you can join.

Get Involved

We believe that nature can heal if we give it the chance. Our 20-year track record shows that change happens.

• Water access programs for vulnerable populations

Join thousands of climate leaders pushing back for justice.

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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 harm. Now I'm inspiring others.' — Jennifer M., Community Monitor

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