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Water doesn't recognize borders — and neither do the threats it faces. Our local teams work year-round to defend it.

This work is possible because of partners like you. Learn how you can join.

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We believe that nature can heal if we give it the chance. Our growing coalition shows that grassroots action works.

• Long-term scientific monitoring of water quality shifts

The water that flows through you connects you to 7 billion people — and countless ecosystems. 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 action prevents contamination. Now I'm training others.' — Michael O., Community Monitor

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