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

This work is possible because of scientists like you. Every contribution matters.

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The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We propose solutions so policy can shift.

• Real-time data networks of water quality shifts

Join thousands of environmental advocates 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 data prevents contamination. 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 generations to rebuild what was lost.