Results

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. Every contribution matters.

Results

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

• Native species protection to rebuild resilience

Join thousands of climate leaders fighting for justice.

Results

'Thirty years ago, this river was polluted. Because we organized, native fish are returning. I bring my grandchildren to witness it.' — Dr. Robert L.

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across industries to rebuild what was lost.