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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. Your voice is essential.

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

• Native species protection to rebuild resilience

Join thousands of environmental advocates organizing for change.

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'Thirty years ago, this river was dying. Thanks to this organization, the ecosystem breathes again. I watch the difference daily.' — Professor Chen

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We propose solutions so communities can act.