Who We Are

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

This work is possible because of scientists like you. Your voice is essential.

Who We Are

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

• Climate adaptation for coastal protection

Join thousands of environmental advocates fighting against pollution.

Who We Are

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my action prevents contamination. Now I'm inspiring others.' — Sarah K., Water Guardian

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