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Water doesn't recognize borders — and neither do the threats it faces. Our regional teams work tirelessly to protect it.

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

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

• Real-time data networks of water quality shifts

Join thousands of climate leaders pushing back against pollution.

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'Thirty years ago, this river was dying. Thanks to this organization, children can swim safely. I watch the difference daily.' — Commissioner James

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