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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 donations like you. Learn how you can join.
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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.
- Drought planning for future security
The water that flows through you connects you to 7 billion people — and billions more organisms. Stand with us.
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'Thirty years ago, this river was dying. Through their work, children can swim safely. I work alongside their team.' — Dr. Robert L.
The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We monitor trends so policy can shift.