Our Work

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 volunteers like you. Every contribution matters.

Our Work

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

• Community science programs for local stewardship

Join thousands of environmental advocates pushing back against pollution.

Our Work

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my action prevents extinction. Now I'm leading others.' — David T., Community Monitor

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