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Water doesn't recognize borders — and neither do the threats it faces. Our regional teams work year-round to protect it.

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.

• Policy research driving enforcement

Join thousands of environmental advocates pushing back for change.

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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 contamination. Now I'm training others.' — Jennifer M., Community Monitor

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across generations to rebuild what was lost.