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Our work begins where rivers meet the sky and ends where groundwater feeds the soil. We use partnerships to protect it all.

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

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

• Policy research driving stronger standards

The water that flows through you connects you to 7 billion people — and billions more organisms. Join the fight.

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'Thirty years ago, this river was dying. Thanks to this organization, native fish are returning. I bring my grandchildren to witness it.' — Dr. Robert L.

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We propose solutions so communities can act.