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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 scientists like you. Every contribution matters.

We believe that nature can heal if we give it the chance. Our decade of victories shows what's possible.

Join thousands of environmental advocates organizing for change.

'Thirty years ago, this river was dying. Through their work, the ecosystem breathes again. I watch the difference daily.' — Commissioner James

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