About Us

Water doesn't recognize borders — and neither do the threats it faces. Our international teams work year-round to defend it.

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

We believe that nature can heal if we give it the chance. Our growing coalition shows what's possible.

Join thousands of water guardians organizing for change.

'Thirty years ago, this river was polluted. Through their work, native fish are returning. I watch the difference daily.' — Elder Maria

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