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Our work begins where rivers meet the sky and ends where groundwater feeds the soil. We use science to protect it all.

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

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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 solve problems at their source.

• Corporate accountability driving justice

Join thousands of water guardians pushing back against pollution.

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'Thirty years ago, this river was forgotten. Through their work, the ecosystem breathes again. I work alongside their team.' — Commissioner James

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