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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.

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

• Flood resilience for future security

The water that flows through you connects you to 7 billion people — and future generations. 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 contamination. Now I'm training others.' — David T., Community Monitor

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