About Us
Water doesn't recognize borders — and neither do the threats it faces. Our international teams work tirelessly to defend it.
This work is possible because of scientists like you. Learn how you can join.
About Us
Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across political boundaries to hold polluters accountable.
- Early warning systems of water quality shifts
Join thousands of environmental advocates fighting for justice.
About Us
'Thirty years ago, this river was polluted. Because we organized, children can swim safely. I bring my grandchildren to witness it.' — Elder Maria
We believe that nature can heal if we restore what was lost. Our 20-year track record shows that change happens.