Programs

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.

Programs

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

• Legal advocacy driving justice

Join thousands of environmental advocates organizing for justice.

Programs

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my data prevents crisis. Now I'm inspiring others.' — Jennifer M., Volunteer

We believe that nature can heal if we restore what was lost. Our decade of victories shows what's possible.