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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. Every contribution matters.

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across industries to solve problems at their source.

Join thousands of climate leaders pushing back for change.

'Thirty years ago, this river was dying. Thanks to this organization, native fish are returning. I watch the difference daily.' — Commissioner James

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