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Water doesn't recognize borders — and neither do the threats it faces. Our international teams work tirelessly to protect it.

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

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We believe that nature can heal if we remove barriers. Our 20-year track record shows that grassroots action works.

• Emergency support for crisis zones

Join thousands of water guardians pushing back 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 action prevents contamination. Now I'm inspiring others.' — David T., Community Monitor

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across political boundaries to rebuild what was lost.