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

This work is possible because of scientists like you. Your voice is essential.

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Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across industries to hold polluters accountable.

• Indigenous partnerships for sovereignty

The water that flows through you connects you to 7 billion people — and countless ecosystems. Stand with us.

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

We believe that nature can heal if we remove barriers. Our growing coalition shows that change happens.