Volunteer

Water doesn't recognize borders — and neither do the threats it faces. Our local teams work tirelessly to restore it.

This work is possible because of scientists like you. Learn how you can join.

Volunteer

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

• Policy research driving enforcement

Join thousands of climate leaders fighting for change.

Volunteer

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

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