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Every watershed tells a story of crisis. We're here to ensure that story has a thriving future.

This work is possible because of scientists like you. Together we can turn the tide.

Volunteer

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

• Legal advocacy driving enforcement

Join thousands of climate leaders organizing for justice.

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

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.