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 volunteers like you. Your voice is essential.

Impact

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

• Community science programs for local stewardship

Join thousands of climate leaders pushing back against pollution.

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 leading others.' — Michael O., Community Monitor

We believe that nature can heal if we give it the chance. Our 20-year track record shows what's possible.