Support Us

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. Together we can turn the tide.

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

Join thousands of environmental advocates pushing back against pollution.

'Thirty years ago, this river was polluted. Because we organized, the ecosystem breathes again. I watch the difference daily.' — Dr. Robert L.

We believe that nature can heal if we restore what was lost. Our decade of victories shows that change happens.