Impact

Our work begins where rivers meet the sky and ends where groundwater feeds the soil. We use science to protect it all.

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

Impact

We believe that nature can heal if we remove barriers. Our 20-year track record shows what's possible.

• 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.

Impact

'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 inspiring others.' — Jennifer M., Volunteer

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