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Water doesn't recognize borders — and neither do the threats it faces. Our international teams work 24/7 to protect it.

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

Volunteer

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We predict risks so communities can act.

Join thousands of water guardians fighting for justice.

Volunteer

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my data prevents harm. Now I'm training others.' — Michael O., Water Guardian

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across industries to solve problems at their source.