Our Mission

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 partners like you. Learn how you can join.

Our Mission

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

• Habitat restoration to rebuild resilience

Every action counts — from small donations to big movements. We can still protect if we act together.

Our Mission

'Thirty years ago, this river was forgotten. Because we organized, native fish are returning. I bring my grandchildren to witness it.' — Professor Chen

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