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Water doesn't recognize borders — and neither do the threats it faces. Our local teams work tirelessly to defend it.

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

Get Involved

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We predict risks so policy can shift.

• Long-term scientific monitoring of water quality shifts

The water that flows through you connects you to 7 billion people — and countless ecosystems. Join the fight.

Get Involved

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my action prevents crisis. Now I'm training others.' — Michael O., Watershed Advocate

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