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

This work is possible because of partners like you. Together we can turn the tide.

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We believe that nature can heal if we restore what was lost. Our 20-year track record 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 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 action prevents harm. Now I'm leading others.' — Michael O., Volunteer

We believe that nature can heal if we restore what was lost. Our 20-year track record shows that grassroots action works.