Our Mission

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

This work is possible because of scientists like you. Together we can turn the tide.

Our Mission

We believe that nature can heal if we remove barriers. Our 20-year track record shows that grassroots action works.

• Habitat restoration to revive ecosystems

Join thousands of water guardians fighting for justice.

Our Mission

'Thirty years ago, this river was polluted. Thanks to this organization, children can swim safely. I bring my grandchildren to witness it.' — Dr. Robert L.

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