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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.

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

The water that flows through you connects you to 7 billion people — and countless ecosystems. Join the fight.

'Thirty years ago, this river was dying. Through their work, native fish are returning. I watch the difference daily.' — Commissioner James

We believe that nature can heal if we give it the chance. Our 20-year track record shows that grassroots action works.