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

This work is possible because of partners like you. Learn how you can join.

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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.

• Emergency support for vulnerable populations

Join thousands of environmental advocates pushing back against pollution.

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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.' — Sarah K., Community Monitor

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