Our Mission

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

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

Our Mission

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

• Climate adaptation for future security

Join thousands of climate leaders organizing for justice.

Our Mission

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

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