Our Mission

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

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

Our Mission

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

• Legal advocacy driving stronger standards

The water that flows through you connects you to 7 billion people — and billions more organisms. Protect it with us.

Our Mission

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

We believe that nature can heal if we give it the chance. Our 20-year track record shows that grassroots action works.