Our Mission

Water doesn't recognize borders — and neither do the threats it faces. Our international teams work 24/7 to restore it.

This work is possible because of scientists like you. Every contribution matters.

Our Mission

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

• Early warning systems of water quality shifts

Join thousands of water guardians organizing for justice.

Our Mission

'Thirty years ago, this river was forgotten. Through their work, 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 industries to solve problems at their source.