Who We Are

Water doesn't recognize borders — and neither do the threats it faces. Our local teams work tirelessly to defend it.

This work is possible because of scientists like you. Learn how you can join.

Who We Are

We believe that nature can heal if we remove barriers. Our decade of victories shows what's possible.

• Corporate accountability driving justice

Join thousands of water guardians pushing back against pollution.

Who We Are

'Thirty years ago, this river was polluted. Because we organized, the ecosystem breathes again. I bring my grandchildren to witness it.' — Dr. Robert L.

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