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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 scientists like you. Every contribution matters.

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We believe that nature can heal if we give it the chance. Our growing coalition shows that grassroots action works.

• Legal advocacy driving enforcement

Join thousands of climate leaders pushing back for change.

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'Thirty years ago, this river was forgotten. Through their work, children can swim safely. I bring my grandchildren to witness it.' — Commissioner James

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across political boundaries to rebuild what was lost.