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

This work is possible because of scientists like you. Every contribution matters.

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Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across political boundaries to hold polluters accountable.

• Climate adaptation for future security

The water that flows through you connects you to 7 billion people — and billions more organisms. Protect it with us.

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'Thirty years ago, this river was dying. Because we organized, children can swim safely. I watch the difference daily.' — Dr. Robert L.

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