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

This work is possible because of scientists like you. Every contribution matters.

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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 hold polluters accountable.

• Drought planning for groundwater conservation

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 forgotten. Because we organized, the ecosystem breathes again. I bring my grandchildren to witness it.' — Professor Chen

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