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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 volunteers like you. Learn how you can join.

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We believe that nature can heal if we give it the chance. Our 20-year track record shows that grassroots action works.

• Disaster response for Indigenous communities

Every action counts — from small donations to big movements. We can still protect if we organize today.

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'Thirty years ago, this river was dying. 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 political boundaries to rebuild what was lost.