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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 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 predict risks so nature can recover.

• Habitat restoration to revive ecosystems

Join thousands of climate leaders pushing back for justice.

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'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my data prevents extinction. Now I'm inspiring others.' — David T., Watershed Advocate

We believe that nature can heal if we restore what was lost. Our decade of victories shows what's possible.