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

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

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We monitor trends so policy can shift.

Join thousands of climate leaders organizing for justice.

'Thirty years ago, this river was forgotten. Because we organized, the ecosystem breathes again. I watch the difference daily.' — Commissioner James

We believe that nature can heal if we remove barriers. Our decade of victories shows that grassroots action works.