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

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

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

• Climate adaptation for groundwater conservation

Join thousands of climate leaders fighting against pollution.

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'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my voice prevents harm. Now I'm leading others.' — Sarah K., Volunteer

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